Showing posts with label timing. Show all posts
Showing posts with label timing. Show all posts

Friday, June 6, 2014

How to Replace the Timing Belt on a 2002 Acura TL

The Acura TL is a luxury sports car in production since 1996. The 2002 model is a second generation Acura, which includes the 1999 through 2003 models. The standard engine for all second generation Acuras in North America is a six-cylinder, 3.2-liter engine with a double overhead camshaft. The timing belt synchronizes the crankshaft with the camshafts, so the cylinder valves open and close at the right time.

Instructions

    1

    Disconnect the cable for the negative battery terminal and the ignition coil cover with a socket wrench.

    2

    Place a cushion such as a wooden board on top of a floor jack. Place the floor jack under the oil pan, and raise the vehicle. Remove the front wheel assemblies with a lug wrench. Disconnect the splash shield under the vehicle and remove the accessory drive belts from their respective pulleys.

    3

    Lower the vehicle with the floor jack and raise it slightly to take the weight of the engine off the engine mounts. Disconnect the mounting bolts for the side mount on the front of the engine, and remove the side mount. Remove the bolt for the dipstick tube with a socket wrench, and detach the tube from the engine.

    4

    Rotate the crankshaft clockwise to align the white timing mark on the crankshaft pulley with the pointer on the lower rear timing belt cover. The timing marks on the camshaft pulleys must also align with their respective timing marks on the upper rear timing belt cover.

    5

    Hold the crankshaft pulley in place with Holder Attachment Tool 07MAB-PY3010A. Remove the crankshaft pulley bolt with a socket wrench and a 19mm socket. Pull the crankshaft pulley from its shaft with Holder Attachment Tool 07MAB-PY3010A.

    6

    Disconnect a bolt for a battery clamp with a socket wrench. Grind a 45-degree bevel on the threaded end of the bolt. Screw the bolt into the hole in the right cylinder head by hand to hold the adjuster for the timing belt in place. Disconnect the engine mount bracket. Turn the mounting bolt for the idler pulley five turns counterclockwise with a socket wrench, and detach the timing belt.

    7

    Disconnect the spark plugs. Turn the crankshaft sprocket clockwise to align the timing mark on the crankshaft sprocket with the timing mark on the oil pump. The timing mark on the camshaft pulleys must also align with their respective timing marks on the rear timing belt covers.

    8

    Disconnect the battery clamp bolt with a socket wrench and replace it into its original hole. Remove the timing belt tensioner and place it into a soft-jawed vise with the maintenance bolt pointed up. Remove the maintenance bolt with a socket wrench. Place Stopper Tool 14540-P8A-A01 onto the tensioner to maintain the tension setting. Turn the screw inside the maintenance hole clockwise with a flat-blade screwdriver to compress the bottom of the tensioner.

    9

    Replace the gasket for the maintenance bolt on the timing belt tensioner and tighten the bolt to 6 ft. lbs. with a torque wrench. Install the tensioner and tighten its mounting bolts to 33 ft. lbs.

    10

    Mount the new timing belt to the crankshaft sprocket, idler pulley, left camshaft sprocket, water pump pulley, right camshaft sprocket and adjusting pulley in that order. Remove Stopper Tool 14540-P8A-A01 from the timing belt tensioner.

    11

    Install the bolts for the engine side mount with a torque wrench. Tighten the No. 10 bolts to 33 ft. lbs., and tighten the No. 6 bolts to 104 in. lbs. Connect the timing belt covers with a socket wrench. Install the crankshaft pulley with Holder Attachment tool 07MAB-PY3010A. Tighten the crankshaft pulley bolt with a torque wrench and a 19mm socket to 181 ft. lbs.

    12

    Turn the crankshaft five complete turns clockwise to position the timing belt, and align the timing marks. Connect the dipstick tube, accessory drive belts, splash shield and front wheel assemblies. Lower the vehicle and replace the ignition coil cover. Attach the cable to the negative battery terminal.

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Friday, May 16, 2014

What Does Failed Ignition Timing Mean

What Does Failed Ignition Timing Mean?

Failed ignition timing means the timing setting for a car engine was inspected and is outside the guidelines for pollution control. The timing must be adjusted to pass a future inspection.

Significance

    Smog technicians check vehicle timing and evaluate the settings. Timing adjustments, if necessary, are easy for mechanics to do and should not require more than a few minutes of labor in most cases. Timing specifications are located under the hood, on the timing belt cover or in owners manuals.

Considerations

    Consumers should caully select a mechanic to adjust timing settings, as dishonest opportunists have a reputation of exploiting failed ignition timing for financial gain. Second opinions are recommended, particularly if more than a simple adjustment is required.

Effects

    Engine timing ers to the rate at which spark plugs fire. The plugs burn a certain amount of fuel, and the fuel is broken down and emitted through the exhaust system. Larger amounts of carbon monoxide are created when the timing is inefficient, a circumstance that is detrimental to the environment.

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Wednesday, April 2, 2014

How to Install a 1998 Dodge Neon Timing Belt

The Dodge Neon is a compact car manufactured by Chrysler and sold under its Dodge brand. The 1998 model typically had a four-cylinder 2.0-liter engine with a single overhead camshaft. This type of engine has a timing belt that synchronizes the rotation of the camshaft and crankshaft, so that the cylinders fire at the correct point in their combustion cycle. You should replace the timing belt on a 1998 Dodge Neon after 102,000 miles.

Instructions

    1

    Disconnect the cable on the negative battery terminal with a socket wrench so that you dont accidentally start the engine. Remove the cover for the timing belt cover. Turn the crankshaft clockwise to align the timing mark on the crankshaft with the mark on the housing of the oil pump.

    2

    Place the long end of a 3mm Allen wrench into the pin hole of the timing belt tensioner. Rotate the tensioner counterclockwise with an 8mm Allen wrench until the handle of the 3mm Allen wrench slides into the hole.

    3

    Detach the timing belt from the crankshaft and camshaft. Hold the camshaft sprocket in place with a spanner wrench. Remove the mounting bolt for the camshaft sprocket and disconnect the sprocket from the camshaft.

    4

    Connect the camshaft sprocket to the camshaft and tighten the mounting bolts with a socket wrench. Turn the crankshaft sprocket clockwise to align its timing marks, then turn the crankshaft sprocket three notches counterclockwise. Turn the camshaft sprocket clockwise to align its timing marks.

    5

    Install the timing belt onto the crankshaft and continue in the counterclockwise direction. Place the timing belt on the water pump sprocket, idler pulley, camshaft sprocket and belt tensioner pulley in that order. Turn the crankshaft clockwise to take up the slack in the timing belt and align the timing marks on the crankshaft.

    6

    Remove the long handle of the 3mm Allen wrench from the pin hole in the belt tensioner to apply tension to the timing belt. Turn the crankshaft two full turns clockwise and align the timing marks. Replace the timing belt cover with a socket wrench, and connect the negative battery cable.

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Tuesday, April 1, 2014

How to Replace the Timing Belt in a 1987 BMW 325

The BMW E30 was a series of compact executive cars manufactured from 1982 to 1994, including the 325. The most common engine in the 1987 325 was a six-cylinder 2.7-liter engine with a single overhead camshaft. The crankshaft in this model drives the camshaft with a timing belt, which makes less noise than a timing chain. BMW recommends replacement of the timing belt in a 1987 325 after no more than four years.

Instructions

    1

    Remove the cable from the negative battery terminal using a socket wrench. Disconnect the cap, rotor, inner cover and seal of the distributor. Remove the mounting bolts for the distributor guard plate and remove the guard plate.

    2

    Turn the crankshaft clockwise so that the arrow on the camshaft sprocket aligns with the timing mark on the cylinder head. Drain the radiator and disconnect it with a socket wrench.

    3

    Disconnect the splash guard below the engine. Detach the drive belts for the alternator, power steering motor and air conditioner. Remove the mounting bolt for the crankshaft pulley with a socket wrench and disconnect the crankshaft pulley. Remove the vibration damper.

    4

    Remove the bolt on the crankshaft hub with a socket wrench, detach the crankshaft hub with a gear puller. Disconnect the mounting bolt and adjusting bolt on the alternator bracket, and push the bracket out of your way. Detach the top dead center transmitter from the engine.

    5

    Disconnect the bolt on the lower timing belt cover with a socket wrench, and detach the cover. Remove the bolts for the roller of the timing belt and push the roller towards the timing belt to relieve the tension on the timing belt. Tighten the upper bolt for the roller of the timing belt tensioner to hold the roller in place. Disconnect the timing belt from its pulleys.

    6

    Turn the crankshaft to align the camshaft timing marks, if necessary. Install the new timing belt onto the crankshaft sprocket and proceed in a counterclockwise fashion.

    7

    Loosen the upper bolt for the roller of the timing belt tensioner to place tension on the timing belt. Turn the crankshaft one full turn clockwise and align the timing marks again. Tighten the upper roller bolt with a socket wrench, then tighten the lower roller bolt.

    8

    Replace the lower cover for the timing belt with a socket wrench. Install the top dead center transmitter and the alternator bracket. Connect the crankshaft hub and tighten its retaining nut to between 281 and 309 foot-pounds with a torque wrench. Replace the vibration damper and the crankshaft pulley. Tighten the bolts for the crankshaft pulley to 17 foot-pounds.

    9

    Connect the guard plate for the distributor with a socket wrench. Replace the seal, rotor and cap for the distributor. Attach the drive belts for the accessories and the splash shield below the engine. Connect the radiator and fill it with coolant.

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Thursday, March 27, 2014

PT Cruiser Timing Belt Problems

PT Cruisers, like most cars and trucks, have timing belts that turn the camshaft. Over time, the timing belt can fail leaving the car driving poorly and the belt must be replaced.

Function

    The function of a timing belt on a PT Cruiser is to turn the camshaft exactly one half the speed of the crankshaft. The camshaft must be aligned properly as it controls the intake and exhaust associated with the movement of the engine pistons.

Problems

    There are two main problems associated with the timing belt. The belt can break over time, causing the car to not start or shut down if it breaks in transit. The other problem is the belt can become worn and either slip or stretch out, ruining the timing and can cause the car to run badly.

Remedies

    When the PT Cruisers timing belt goes bad, it must be replaced. If the belt breaks while driving, it can cause damage to the engine and valves, meaning added expense and repairs.

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Thursday, January 30, 2014

1995 Chevrolet Caprice Timing Specs

1995 Chevrolet Caprice Timing Specs

Manufactured by General Motors, the 1995 Chevrolet Caprice falls into the category of large luxury cars. The good sides of the car included anti-lock brakes (ABS), ability to tow trailers and very impressive size of cargo and passenger room. The 1995 Caprice was also equipped with Powertrain Control Module (PCM) with significantly improved drivability and fuel economy.

Measuring Ignition Timing

    A timing light is used to check the timing. When the motor is running, an inductive trigger signal is picked up from one of the spark plug cables causing the light to illuminate and freeze while the spark plug fires. This helps determine the crankshaft position.

Timing Specifications

    The ignition timing is completely controlled by the PCM. No timing specifications are available.

Adjustments

    The base timing is preset when the engine is manufactured, no adjustment is possible. Timing advance and retard are accomplished through the PCM with ignition control (IC) and knock sensor (KS) systems.

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Friday, January 10, 2014

What Are the Causes of Timing Chain Failures

What Are the Causes of Timing Chain Failures?

A timing chain, or belt, is an integral part of an automobiles engine that controls the opening and closing of the valves in the engine. If the chain breaks, serious damage to the engine could result. Proper maintenance is important to prevent this from happening.

Tension

    A timing chain can break with either too much or not enough tension. If the chain does not have enough tension, it can develop slack. This can result in the chain "slapping," leading to premature fatigue. A chain with too much tension can also fail, as it is placed under excessive stress. Tension increases friction and heat in the chain, which can result in failure.

Engine Seizure

    Engine seizure can be caused by an engine overheating or running out of oil, causing pistons to seize inside the cylinders. If an engine seizes while running at high speeds, the sudden stop can cause a timing chain to break.

Age

    The age and number of miles driven on a timing chain are major contributors to failure. The more miles you have on your vehicle, the higher the odds your timing chain will fail, as the chain will become weak and break. Most car manufacturers suggest you have the chain replaced every 60,000 miles.

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Tuesday, December 10, 2013

Do It Yourself Timing Belt Changes for a 2005 Toyota Sienna

Do It Yourself Timing Belt Changes for a 2005 Toyota Sienna

The Toyota Sienna is a family minivan that has been in production since 1997, and the second generation of this vehicle includes the 2004 through the 2010 model years. The only engine available for the 2005 Toyota Sienna is the 3MZ-FE model, which has a double overhead camshaft. The majority of the timing belt installation for this vehicle deals with keeping the crankshaft and camshafts in the proper position during the procedure.

Instructions

    1

    Remove the negative battery cable with a socket wrench. Disconnect both windshield wiper assemblies and the panel cover for the front cowl. Remove the hose to the windshield washer reservoir and both cowl top ventilator louvers. Detach the electrical connector for the windshield wiper motor. Remove the outer front cowl panel.

    2

    Raise the vehicle and support it on jack stands. Remove the right front wheel with a lug wrench. Disconnect the pivot bolt, adjusting lock bolt and and adjusting bolt on the accessory drive with a socket wrench, and remove the accessory drive belt. Unplug the electrical connector for the alternator and disconnect the alternator.

    3

    Loosen the adjusting bolt for the power steering pump and detach the drive belt. Disconnect the hose for the coolant reservoir. Remove the engines right mounting stay and moving control rod. with a socket wrench. Disconnect the No. 2 mounting bracket on the right side of the engine.

    4

    Disconnect the crankshaft pulley bolt with pulley holding tool 09213-54015, companion flange holding tool 09330-00021 and bolt tool 91651-60855. Detach the crankshaft pulley from the crankshaft with puller set 09950-50011.

    5

    Remove the lower timing belt cover and disconnect the timing belt guide from the crankshaft with a socket wrench. Remove the wire protector clamps from the upper cover of the timing belt, and disconnect the upper cover. Remove the right engine mounting brace.

    6

    Replace the crankshaft pulley bolt, and rotate the crankshaft clockwise to align the timing marks. The notch on the oil pump must align with the dimple on the crankshaft sprocket. The timing marks on the camshaft sprockets must also align with the marks on the rear timing belt cover.

    7

    Disconnect the timing belt tensioner and timing belt with a socket wrench. Turn the crankshaft clockwise to realign the timing marks if necessary. Install the new timing belt to the crankshaft sprocket and proceed with the installation in a counterclockwise direction. Place the timing belt on the water pump pulley, left camshaft sprocket, No. 2 idler pulley, right camshaft sprocket and No. 1 idler pulley.

    8

    Depress the pushrod for the timing belt tensioner into its housing with tool 981-9807 and secure it in place with a 1.27mm Allen wrench. Connect the timing belt tensioner and torque its mounting bolts to 20 foot pounds with a torque wrench. Pull the Allen wrench from the timing belt tensioner housing to release the tensioner.

    9

    Rotate the crankshaft clockwise two full turns to align the timing marks again, and disconnect the crankshaft pulley bolt. Fasten the engines right mounting bracket with a socket wrench and torque the mounting bolts to 21 foot pounds with a torque wrench.

    10

    Connect the upper cover for the timing belt with a socket wrench. Install the timing belt guide to the crankshaft so that the cup side faces outward, and replace the lower timing belt cover.

    11

    Connect the crankshaft pulley with pulley holding tool 09213-54015, companion flange holding tool 09330-00021 and bolt tool 91651-60855. Tighten the crankshaft pulley bolt to 159 foot pounds with a torque wrench. Install the remaining components by performing steps one through three in reverse order.

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How Replace the Timing Belt on a 2001 Civic

The timing belt is the part of your 2001 Honda Civic that keeps your engine valves operating with the correct rhythm. The timing belt is an absolutely vital part of your vehicles engine. If the belt breaks and the valves are not kept in time, it is likely that your engine will experience a catastrophic failure. For this reason, you should replace the timing belt on your Civic at least as often as recommended by the manufacturer. This will help to ensure your cars engine lasts for a long time.

Instructions

    1

    Disconnect the vehicle battery at the negative terminal. Block the rear wheels, and release the parking brake. Loosen the left-front lug nuts and jack up the front of the vehicle. Place jack stands securely under the Civic for safety. Remove the left-front lug nuts and wheel from the vehicle.

    2

    Pull the splash shield and drive belts out from under the vehicle. Remove the bolts that hold the power-steering pump in the vehicle, but do not disconnect the hoses that supply the power steering fluid. Set the pump out of the way.

    3

    Remove the bolts holding the alternator and valve cover in place. Pull these parts out and set them aside. Support the engine of the Civic with your floor jack. Place a piece of soft material like wood between the jack and the oil pan so you dont damage the pan. Disconnect the upper left engine mount bracket from the engine.

    4

    Rotate the crankshaft counterclockwise until the No. 1 piston is at top dead center; never rotate the shaft clockwise. Disconnect the top dead center sensor once the piston is in place. Remove the side engine mounting bracket from the vehicle.

    5

    Pull off the upper timing belt cover. Hold the crankshaft pulley stationary with a chain wrench, and loosen the pulley bolt using a socket and ratchet. Attach a breaker bar if the bolt is too tight to be removed with a regular ratchet. Pull the crankshaft position sensor out from underneath the Civic.

    6

    Loosen the tensioner bolt for the timing belt. Press the tensioner to release the tension on the belt and tighten the bolt in position where the belt is loose. Slip the belt off of the pulleys.

    7

    Line up the holes on the tensioner pulley and the base. Place a 0.12-inch pin into the holes to keep them aligned. Place the new timing belt around the crankshaft sprocket and then the tensioner pulley and other pulleys it was originally on. Loosen the tensioner bolt, and put a small amount of tension in the belt. Turn the crankshaft two full revolutions. If it will not turn two full revolutions, the timing is off and you have made a mistake installing the belt; remove it and try again until the crankshaft will spin properly. Tighten the tensioner mounting bolt, and remove the pin from the pulley and base.

    8

    Reinstall the engine mounts, valve cover, alternator, power-steering pump, drive belts, splash shield, and wheel in the reverse manner of how they were removed. Reconnect the battery.

    9

    Run the engine to check that it operates properly. If anything seems to be incorrect, check your work for mistakes before attempting to drive the vehicle.

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Sunday, December 8, 2013

2004 Subaru WRX Timing Belt Installation

The Subaru Impreza is a four-door passenger vehicle with all-wheel drive which has been in production since 1992. The WRX is a version of the Impreza that has a turbocharger. The 2004 model features a four-cylinder, 2.0-liter engine with a double overhead camshaft. This engine uses a timing belt to drive the camshafts with the crankshaft, allowing the cylinder valves to open and close in the correct sequence.

Instructions

    1

    Remove the cable on the negative battery terminal with a socket wrench. Disconnect the V-belt and the crankshaft pulley from the engine. Remove the left timing belt cover, right timing belt cover and front timing belt cover in that order.

    2

    Disconnect the guides for the timing belt with a socket wrench if your vehicle has a manual transmission. Remove the No. 1 idler pulley, timing belt and the No. 2 idler pulley in that order. Disconnect the timing belt tension adjuster assembly.

    3

    Push the adjuster rod on the timing belt adjuster down with a constant pressure of 66 lbs. until the end of the adjuster rod reaches the surface of its cylinder. Place a 0.08-inch Allen wrench into the pin hole of the cylinder to hold the adjuster rod in place.

    4

    Install the timing adjuster and tighten its retainers to 29 foot-pounds with a torque wrench. Attach the the No. 2 idler pulley and No. 1 idler pulley in that order. Tighten the retainers for both pulleys to 29 foot-pounds.

    5

    Turn the crankshaft sprocket clockwise to align its timing mark with the timing mark on the oil pump. The double lines on the left intake camshaft must align with the double lines on the left exhaust camshaft sprocket. The double lines on the right intake camshaft must align with the double lines on the right exhaust camshaft sprocket.

    6

    Place the new timing onto the sprockets with the arrow pointing in the clockwise direction. The "A" mark on the timing belt must align with the timing mark on the crankshaft, The "B" mark aligns with the left intake cam shaft, the "C" mark aligns with the timing mark on the left exhaust camshaft, the "D" mark aligns with the timing mark on the right intake camshaft and the "E" mark aligns with the right exhaust camshaft.

    7

    Attach the belt idlers and tighten their mounting bolt to 29 foot-pounds with a torque wrench. Remove the Allen wrench from the cylinder on the timing belt adjuster.

    8

    Replace the guide for the timing belt if your vehicle has a manual transmission. Ensure that the clearance between the guide and the timing belt is between 0.019 and 0.059 inches Tighten the retainers for the timing belt guide to 7 foot-pounds.

    9

    Replace the timing belt covers and tighten their mounting bolts to 3.5 foot-pounds with a torque wrench. Connect the crankshaft pulley and tighten its mounting bolt to 94 foot-pounds. Install the V-belt.

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Monday, November 18, 2013

Timing Belt Installation on an 1988 Acura Legend

The Acura Legend was a series of luxury cars manufactured by Honda under its Acura brand from 1986 to 1995. The 1988 models were available with six-cylinder engines having a displacement of either 2.5 liters or 2.7 liters. The procedure for installing a timing belt is the same for both engines. The timing belt on a 1988 Acura Legend keeps the rotation of the camshaft and crankshaft synchronized, so that the cylinder valves open and close at the correct time.

Instructions

    1

    Disconnect the cable on the negative battery terminal with a socket wrench. Detach the cover for the crankshaft pulley and the harness cover above the upper timing belt cover. Release the clamp for the engine sub-harness. Remove the support bolts and side mount brackets for the engine.

    2

    Raise and support the engine with a chain hoist. Disconnect the lower splash guard on the engine with a socket wrench. Remove the adjusting bolt on the idler pulley for the air conditioner, and disconnect the air compressor drive belt. Disconnect the mounting bolt and adjusting bolt for the alternator. Detach the drive belt for the alternator and remove the alternator.

    3

    Remove the mounting bolt and the drive belt for the power steering pump with a socket wrench. Disconnect the power steering pump. Remove the upper covers for the timing belt.

    4

    Turn the crankshaft clockwise so that the number-1 piston is at its top dead center position by aligning the timing marks on the crankshaft. Remove the bolt for the crankshaft pulley with a socket wrench and detach the crankshaft pulley. Disconnect the lower cover for the timing belt.

    5

    Loosen the adjusting bolt for the timing belt tensioner with a socket wrench. Push the tensioner to relieve the tension on the timing belt and tighten the adjusting bolt. Remove the timing belts, and adjust the crankshaft again to align its timing marks if necessary.

    6

    Place the new timing belt onto the crankshaft, front camshaft, water pump, tensioner pulleys and rear camshaft, in that order. Turn the bolt on the belt tensioner pulley a half-turn counterclockwise with a socket wrench. This allows the tensioner spring to set the timing belt tension automatically. Tighten the pulley bolt to 31 foot-pounds with a torque wrench.

    7

    Turn the crankshaft six turns clockwise so that the crankshaft and camshaft timing marks align again. Continue turning the crankshaft to align the blue mark on the crankshaft pulley with the pointer on the engine. Loosen the pulley bolt on the timing belt tensioner, then tighten it with a socket wrench.

    8

    Tighten the crankshaft pulley bolt to 83 foot-pounds with a torque wrench. Perform steps one through three in reverse order to install the remaining components. Torque the bolts for the engine side mount bracket to 40 foot-pounds.

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Wednesday, November 6, 2013

Timing Specifications for a 1991 GMC Chevy 4 3 V6

Timing Specifications for a 1991 GMC Chevy 4.3 V6

Developed and produced by General Motors, the 4.3L Vortec was a 4.3-liter V-6 engine used in Chevrolet vehicles. This engine was introduced in 1990 as a replacement for the 2.8-liter V-6. It is based on the bigger 5.7L V-8 GM engine, but has two fewer cylinders. GM engineers have determined precise timing specifications for the 4.3L Vortec.

Timing Definition

    Ignition timing is the measurement in degrees of the crankshaft rotation at the instant when the spark plug fires the air fuel mixture while the piston is on its compression stroke.

Adjusting Timing

    To set ignition timing on this engine, put the electronic spark timing (EST) in bypass mode by disconnecting the timing connector. This is a tan wire with a black stripe. This timing connector breaks out of the engine wiring harness conduit and is located adjacent to the distributor.

Timing Specification

    The ideal time at which the mixture should be fully burned on the 1991 GMC with the 4.3L V-6 is set at 0 degrees of the crankshaft rotation both for the manual and automatic transmissions models.

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Sunday, October 27, 2013

How to Place a Timing Belt on a 1994 Toyota Tercel

How to Place a Timing Belt on a 1994 Toyota Tercel

The Tercel is a subcompact car manufactured by Toyota from 1978 to 2000. The fourth generation of this series includes 1991 through 1994. The standard engine for the 1994 Toyota Tercel is the 3E-E, a four-cylinder, 1.5-liter engine with a single overhead camshaft. The recommended replacement interval for the timing belt in a 1994 Tercel is at least 60,000 miles.

Instructions

    1

    Remove the cable from the negative battery terminal with a socket wrench. Disconnect the undercover on the right side of the engine, and detach the cables for the throttle and accelerator. Detach the PVC hoses and the accessory drive belts.

    2

    Disconnect the air cleaner, air intake assembly and spark plugs with a socket wrench. Detach the vacuum valve from the mounting insulator on the right side of the engine.

    3

    Place a floor jack under the engine and support the engine to take the weight off the engine mounts. Remove the insulator assembly for the right engine mount. Disconnect the valve cover with a socket wrench.

    4

    Turned the crankshaft clockwise to align the timing mark on the crankshaft sprocket with the zero mark on the crankshaft housing. Disconnect the crankshaft pulley with a socket wrench. Remove the covers and guide for the timing belt.

    5

    Detach the spring for the timing belt tensioner, and remove the tensioner spring. Loosen the idler pulley for the timing belt with a socket wrench, and push the idler pulley as far to the left as possible. Tighten the idler pulley to hold it in place temporarily.

    6

    Remove the timing belt from the pulleys and disconnect the idler pulley with a socket wrench. Mount an adjustable wrench to the camshaft to hold it in place and remove the center bolt from the camshaft sprocket. Disconnect the sprocket from the camshaft.

    7

    Remove the spring for the timing belt tensioner. Measure the free length of the spring at the inside faces of the hooks and replace the spring if this length is greater than 1.512 inches.

    8

    Align the camshaft pin with the No. 1 mark on the bearing cap of the camshaft. Align the pin hole on the camshaft with the 3E mark on the camshaft sprocket. Install the camshaft sprocket onto the camshaft and tighten the retaining bolt to 37 foot-pounds with a torque wrench.

    9

    Align the timing mark on the crankshaft timing pulley with the timing mark on the oil pump. Place the new timing belt onto the crankshaft sprocket and camshaft sprocket. Attach the spring for the timing belt tensioner and loosen the bolt for the idler pulley to apply tension to the timing belt.

    10

    Tighten the bolt for the crankshaft pulley with a socket wrench. Rotate the crankshaft two full turns clockwise and align the timing marks again. Torque the bolt for the idler pulley bolt to 13 foot-pounds with a torque wrench.

    11

    Replace the guide and covers for the timing belt with a socket wrench. Connect the crankshaft pulley and tighten its mounting bolt to 112 foot-pounds with a torque wrench. Perform steps 1 through 3 in reverse order to install the remaining components.

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Monday, October 14, 2013

How to Replace a 1992 Honda Accord DX Timing Belt

The Honda Accord is a mid-size car that Honda has manufactured since 1976. The 1992 models in the United States use a four-cylinder 2.2-liter engines. The DX trim level has a more powerful version of this engine, but this does not affect the timing belt replacement procedure. The majority of this procedure deals with ensuring the new timing belt is properly installed on the crankshaft and camshaft sprockets.

Instructions

    1

    Remove the cable from the negative battery terminal with a socket wrench. Turn the crankshaft counterclockwise to align the timing marks on the camshaft and crankshaft sprockets. Disconnect the splash shield under the engine. Drain the coolant into a container and seal the container. Detach the electrical connector from the cruise control actuator, and push the actuator aside.

    2

    Disconnect the drive belt from the power steering pump. Remove the mounting bolts for the pump with a socket wrench, and push the pump aside. Detach the electrical wiring from the alternator and remove the wiring harness from the valve cover. Loosen the mounting bolts for the alternator remove the alternator drive belt. Remove the valve cover and upper cover for the timing belt.

    3

    Support the engine with a floor jack, and disconnect the side engine mount with a socket wrench. Detach the dipstick and dipstick tube from the engine.

    4

    Disconnect the bolt on the crankshaft pulley and remove the crankshaft pulley. Remove the seal on the adjusting nut for the timing belt tensioner without loosening the nut. Disconnect the lower cover for the timing belt with a socket wrench. Insert a mounting bolts from the lower cover into the adjuster arm for the timing belt to hold it in place.

    5

    Loosen the adjustment nut for the timing belt and push the belt tensioner to relieve the tension on the balancer belt. Tighten the adjustment nut and disconnect the balancer belt.

    6

    Remove the bolt in the timing belt adjuster arm that you fastened in step four with a socket wrench. Loosen the adjusting nut for the timing belt, push the belt tensioner to release the tension on the timing belt and tighten the adjusting nut. Remove the timing belt and belt tensioner from the engine.

    7

    Turn the camshaft pulley clockwise until the timing mark on the pulley aligns with the timing mark on the flywheel. The timing mark on the front balancer pulley must also align with the notch on the oil pump. Install the new timing belt onto its pulleys and tensioner.

    8

    Install the crank pulley temporarily and loosen the adjusting nut on the timing belt tensioner by one turn with a socket wrench. Tighten the adjusting nut again and turn the crankshaft counterclockwise to advance its pulley by three teeth. Loosen the adjusting nut on the timing belt tensioner again, and tighten it to 33 ft. lbs with a torque wrench.

    9

    Install the balancer belt onto its pulleys and turn the crankshaft counterclockwise by exactly one turn. Tighten the adjusting nut on the balancing belt tension to 33 ft. lbs. with a torque wrench. Remove the crankshaft pulley with a socket wrench.

    10

    Install the mounting bolt on the timing belt adjuster arm with a new washer and tighten it to 22 ft. lbs. Connect the lower cover of the timing belt and tighten the retaining bolts to 9 ft. lbs. with a torque wrench. Install the crankshaft pulley and tighten its mounting bolts to 159 ft. lbs.

    11

    Replace the dipstick and dipstick tube. Connect the side mount for the engine with a torque wrench and lower the jack. Install the upper cover for the timing belt and the valve cover with a socket wrench. Connect the drive belt for the alternator and adjust its tension. Connect the wiring harness to the valve cover and attach the electrical wiring to the alternator.

    12

    Connect the power steering pump and its drive belt. Install the cruise control actuator, and attach its electrical connector and vacuum hose. Fill the radiator with coolant and attach the splash shield below the engine with a socket wrench. Attach the cable to the negative battery terminal and start the engine. Allow the engine to idle and ensure that the driving belts are not binding or rubbing together.

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