Showing posts with label acura. Show all posts
Showing posts with label acura. 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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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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