Removal & Installation
- Before servicing the vehicle, refer to the Precautions section.
- Remove all necessary components for access to the upper timing belt covers. Using a 5mm Allen wrench, remove the 9 bolts and lift off the two upper (No. 2 and No. 3) timing belt covers.
- Rotate the crankshaft pulley clockwise so its groove is aligned with the0
- Alternately loosen the 2 tensioner mounting bolts and remove them, the tensioner and the dust boot. Slide the timing belt off of the 2 camshaft sprockets. Its a good idea to matchmark the belt to the pulleys.
- Ensuring the timing belt is securely supported, hold the crankshaft pulley with a spanner wrench and loosen the mounting bolt. Remove the bolt and the pulley.
Remove or disconnect the following:
5 bolts, then lift off the lower No. 1 timing belt cover
If the timing belt is to be reused, draw a directional arrow on the timing belt in the direction of engine rotation (clockwise) and place matchmarks on the timing belt and crankshaft gear to match the drilled mark on the pulley.
- Install the timing belt on the crankshaft timing pulley and the idler pulleys.
If the old timing belt is being reinstalled, be sure the directional arrow is facing in the original direction and that the belt and crankshaft gear matchmarks are properly aligned.
- Install the timing belt guide. Install the lower (No. 1) timing cover and tighten the bolts.
- Align the crankshaft pulley set key with the key groove on the pulley and slide the pulley on. Tighten the bolt to 239 ft. lbs. (324 Nm).
- Set the No. 1 cylinder to TDC again. Turn the camshaft until the sprocket timing marks are aligned with the timing marks on the No. 4 belt cover.
- Check that the marks on the belt matches with those on the sprockets, then slide it over the sprockets. If not, shift it on the crank pulley until it does.
- Position a plate washer between the timing belt tensioner and the block, then press in the pushrod until the holes are aligned between it and the housing. Slide a 1.5mm Allen wrench through the hole to keep the pushrod set. Install the dust boot, then install the tensioner. Tighten the bolts to 20 ft. lbs. (26 Nm). Don't forget to pull out the Allen wrench.
- Turn the crankshaft clockwise two complete revolutions and check that all marks are still in alignment. If they aren't, remove the timing belt and start over again.
- Position new gaskets, then install the upper (No. 2 and No. 3) timing covers.
Remove or disconnect the following:
RH front fender apron seal
Remove the timing belt
Set the No 1 cylinder to TDC/compression
If reusing the timing belt make certain there are 3 location marks on the timing belt corresponding with the marks on the timing gears.
Set the No 1 cylinder to approximately 60 degrees BTDC/compression. Turn the crankshaft counterclockwise by approximately 60 degrees.
If the timing belt is disengaged, having the crankshaft pulley set at the wrong angle can cause contact of the piston with the valves, causing damage to the valves. Always set the crankshaft pulley at the correct angle.
Remove timing belt tensioner
Do NOT reinstall the timing belt tensioner with the plunger extended.
Remove the timing belt in the following order.
No 1 idler pulley
- Inspect the timing belt
do not reuse the timing belt if there is evidence of fraying, oil contamination, cracking, tooth damage or wear, or belt distortion. If there is any doubt in the belt condition, replace the belt.
After inspecting the pulleys for wear and checking for oil leaks install the timing belt using the following procedure.
Temporarily install the crankshaft pulley bolt
- Install the timing belt tensioner using the following procedure
Keep the tensioner in an upright position
Slowly depress the push rod and align the hole with the hole in the housingInsert a 1.5 mm hexagon wrench through the holes to maintain the setting position of the push rod.Install the tensioner with the 2 bolts and torque to 20 ft. lbs (27 Nm).Remove the hexagon wrench
- Slowly turn the crankshaft 2 revolutions clockwise.
- Check to see that all timing marks are in alignment.
- Remove the crankshaft bolt
- Install the timing belt guide
- Install all remaining components in the reverse order of removal.