Wednesday, August 27, 2014
How to Replace the Cylinder Head Gaskets in a 5 4L Ford Engine
The Ford 5.4-liter engine is a V-8 engine with aluminum cylinder heads. It appears in various Ford vehicles made since 1997, such as the F-Series of pickup trucks. The 5.4-liter engine has a pair of cylinder heads, one on each side of the engine. The head gasket lies between the cylinder head and the engine block, and makes a tight seal between the two components. The procedure for replacing the cylinder head gaskets is generally the same for both gaskets.
Instructions
- 1
Evacuate the air-conditioning system with the appropriate evacuating equipment. This step requires a mechanic licensed by the Environmental Protection Agency (EPA).
2Disconnect the cable from the negative battery terminal with a socket wrench to prevent the engine from starting during the head gasket replacement. Remove the covers for the cylinder head, and disconnect the intake manifold from the engine block. Detach the timing chains from their sprockets, and remove both exhaust manifolds from the engine block.
3Remove the retaining bolts from the heater hose on the engine block with a socket wrench. Release the hose clamp by squeezing it together and sliding it down the hose. Detach the hose from the engine block. Detach any additional cables, electrical connectors and hoses that restrict your access to the cylinder head.
4Disconnect the mounting bolts from the cylinder head with a socket wrench. Detach the cylinder head from the engine block. Remove the head gasket from the engine block and discard it. Remove any traces of the gasket from the cylinder head and engine block with a gasket scraper.
5Turn the crankshaft clockwise by hand so that the key way on the crankshaft is in the 12 oclock position. Place the new gasket for the cylinder head over the dowel pins on the engine block. Mount the cylinder head over the dowel pins, so that the head is on top of the gasket.
6Install new mounting bolts to the cylinder head by hand. Tighten the bolts to 30 foot-pounds with a torque wrench. Tighten the mounting bolts for the cylinder head an additional 85 to 95 degrees on the second pass. Tighten the mounting bolts an additional 85 to 95 degrees on the third pass.
7Connect the heater hose to the cylinder head, and fasten its retaining bolts with a socket wrench. Slide the hose clamp in place to secure the hose. Attach the exhaust manifolds to the engine block, and mount the timing chains to their sprockets. Connect the intake manifold to the engine block.
8Attach the covers for the cylinder head with a socket wrench. Connect all additional electrical connectors, cables and hoses you removed to obtain access to the cylinder head.
9Recharge the air-conditioning system with the appropriate equipment. This step requires a mechanic licensed by the EPA.
10Fill the engine oil and coolant to their proper levels. Connect the cable for the negative battery terminal with a socket wrench. Start the engine and check for fluid leaks.
Saturday, June 7, 2014
How to Buy a GM Opti Spark
The engine in your General Motors vehicle depends on precision timing and accuracy. The Opti-Spark is an ignition distributor used by GM that employs an optical sensor to trigger the firing of spark plugs. Although they are known for high performance, these devices can have increased susceptibility to wear and tear and may need to be changed more often than other types of distributor caps.
Instructions
- 1
Check your local GM dealership or authorized mechanic. They will have the part in stock or can order it for you and offer services for installation.
2Search online for "buy GM optispark." This will give you the widest range of Opti-Spark designs and types from which to choose. Also try auction sites such as eBay or check several of the large companies that make Opti-Sparks for both standard and custom use.
3Contact the retailer you have chosen and ensure that the part you are buying is correct for your vehicle. You will need to supply the make, model and year of your car.
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.
2Place 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.
3Lower 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.
4Rotate 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.
5Hold 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.
6Disconnect 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.
7Disconnect 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.
8Disconnect 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.
9Replace 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.
10Mount 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.
11Install 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.
12Turn 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.
How to Replace a Broken Catalytic Converter
The catalytic converter reduces smog emissions by converting harmful emissions from your engine into less dangerous gases. Like any other part on your car, there will come a time when the catalytic converter will need to be replaced either because it is broken and has holes in it, or it just gets clogged up. The project is not difficult, and the entire process will take about an hour to an hour and a half to complete.
Instructions
- 1
Park the car on a level surface and set the parking brake.
2Place wheel chocks behind the rear wheels.
3Raise the car with an automobile jack and place a jack stand under the car at the frame rail. Position the jack stand as close as possible to the frame.
4Remove the bolts from the front and back end of the catalytic converter with the proper size socket and a ratchet.
5Remove the catalytic converter from the exhaust system by twisting it and tapping the ends with a rubber mallet.
6Install the new catalytic converter in place of the old one and secure it with the bolts hand-tight.
7Tighten all of the bolts with the proper size socket and ratchet.
8Remove the jack stand and lower the car to the ground with the jack.
What Is Muffler Tape
Muffler tape is an inexpensive method to repair damage to a muffler that has been dragged on the ground or has rusted through. Muffler tape is not adhesive, instead using the heat of the exhaust system to bond to your current muffler.
Function
Muffler tape should be used to repair your muffler or exhaust system for a short time. You should take your vehicle to a dealership or exhaust specialty shop as soon as possible.
Types
Muffler tape may come in strips that can be wrapped around your exhaust or in a patch kit that requires trimming the tape to the proper size.
Benefits
Muffler tape can help silence your vehicle quickly, keeping emissions levels down and your vehicle quiet as you drive.
Installing
Once you wrap muffler tape around the exhaust, the heat near the muffler will cause the tape to bond to the exhaust system. You may need to add more muffler tape if any falls off or holes in the muffler remain uncovered.
Expert Insight
Muffler tape is not a permanent solution. Vehicles are regularly subjected to extreme temperature changes, and you may find that your muffler tape falls off after only a few days or weeks of use.
How to Fix a Noisy Mercedes Catalytic Converter
Problems with the catalytic converter on your Mercedes, or any vehicle for that matter, are often more difficult to deal with than most drivers realize because it is illegal to tamper with a catalytic converter in any way. This means it is illegal to attempt to fix your Mercedes catalytic converter by any means other than having an approved certified mechanic replace it.
There are both federal and state laws governing the removal and replacement of catalytic converters on vehicles. The noise your catalytic converter is making indicates a problem that may cause your Mercedes to fail an emissions test or land you a number of federal fines from the Environmental Protection Agency if not handled properly. It is only legal to remove it if the noise is affecting its function.
Instructions
- 1
Check the warranty. Your Mercedes may not be covered by the federally mandated Environmental Protection Agency warranty. Federal law emissions warranty specifies that if your car was manufactured before 1996, the catalytic converter is still under warranty only if the car has less than 50,000 miles on it. If the car was manufactured after 1996, the car is legally required to have more than 80,000 miles on it or be more than eight years old to be out of warranty.
Some Mercedes vehicles have documented issues with the catalytic converters. Mercedes reached a settlement with the EPA to extend the emissions warranties on these vehicles.
2Take your Mercedes to the dealership, or a mechanic who regularly handles these cars, and have the catalytic converter tested. You will need to go to a mechanic who is familiar with the cars exhaust system requirements and has access to original equipment manufacturer, or OEM, exhaust parts. The converter used to replace your Mercedes converter must be identical to the original Mercedes catalytic converter.
If your car is still covered by the federal warranty, it will need to be taken to the Mercedes dealership.
3Have the mechanic thoroughly document the problem with the converter, then, if necessary, replace it with an identical new converter. Documentation of the problem is a legal requirement if the converter needs to be replaced.
Since tampering with converters is illegal, your noisy converter will probably be replaced. If the converter is still functioning, the mechanic is not legally allowed to remove it.
4Make sure the mechanic also fills out a warranty card as required by federal law. Save a copy of everything for your records in case of emissions inspection problems at a later date.
How to Install an Exhaust Manifold
An engines exhaust manifold routes exhaust gases from the engine to the vehicles exhaust system. Without the exhaust manifold, hazardous exhaust fumes can reach the interior of the vehicle. Installation of the exhaust manifold is usually the final step of the engine installation process, but installation is also necessary when an exhaust manifold gasket is replaced. Thankfully, installing an exhaust manifold is a straightforward process.
Instructions
- 1
Ensure that the exhaust manifolds mating surface is free from old gasket deposits to begin the installation process. Old exhaust manifold gaskets rarely leave gasket deposits, but if any deposits are present they should be scraped away with a gasket scrapper.
2Place a new exhaust manifold gasket over the manifolds mating surface. Do not apply gasket sealer to this gasket.
3Position the exhaust manifold with its gasket against the portion of the head where the manifold attaches, then place one exhaust manifold bolt through one end of the manifold and into the head. Turn this bolt only until it begins to grasp the threads within the head.
4Insert another manifold bolt into the opposite side of the exhaust manifold and turn this bolt only until it begins to grasp the threads within the head.
5Insert the remaining exhaust manifold bolts through the manifold and into the head.
6Tighten each exhaust manifold bolt to the required torque specifications with a torque wrench to complete the installation. Refer to the vehicles specifications manual for this torque setting.