Primary
Timing Drive Components-PrimarySpecial Tools:
Special Tool(s)
Removal
1. Remove the engine front cover.
2. Raise the vehicle.
3. Remove the Crankshaft Position (CKP) sensor and the torque converter cover.
4. NOTE: There is one window on the ignition pulse wheel that is unique to accept the special tool.
Install the special tool.
^ Turn the crankshaft to 45 degrees ATDC. The crankshaft keyway will be in the 6 o'clock position.
^ Install the special tool.
5. Lower the vehicle.
6. Make sure the lobes of the camshaft are facing upwards. If not, repeat Step 4.
7. Install the special tool on the RH cylinder head.
8. CAUTION: An open-end wrench must be used on the flats of the camshaft or damage to the head will occur.
Loosen the exhaust camshaft sprocket bolt.
9. CAUTION: An open-end wrench must be used on the flats of the camshaft or damage to the head will occur.
Loosen the intake camshaft sprocket bolt and slide the camshaft sprockets forward on the bolt.
10. Remove the RH timing chain tensioner.
11. Remove the tensioner arm.
12. Remove the timing chain guide.
13. Remove the RH primary timing chain.
14. Remove the special tool from the RH head.
15. Install the special tool on the LH head.
16. CAUTION: An open-end wrench must be used on the flats of the camshaft or damage to the cylinder head will occur.
Loosen the exhaust camshaft sprocket bolt.
17. CAUTION: An open-end wrench must be used on the flats of the camshaft or damage to the cylinder head will occur.
Loosen the intake sprocket bolt and slide the camshaft sprockets forward on the bolts.
18. Remove the LH timing chain tensioner.
19. Remove the tensioner arm.
20. Remove the timing chain guide.
21. Remove the LH primary timing chain and crankshaft sprocket as an assembly.
Installation
1. Reset the timing chain tensioners.
1 Hold the lever toward the tensioner piston.
2 Using finger pressure, compress the tensioner.
3 Push the lever down and install a drill rod to lock the piston.
2. NOTE: The camshaft holding tool should still be installed on the LH cylinder head.
Position the LH timing chain and crankshaft gear.
^ Position the timing chain over the LH intake camshaft sprocket. Position the crankshaft gear in the timing chain. Position the timing chain and crankshaft gear over the crankshaft as an assembly.
3. Install the LH timing chain guide.
4. Install the LH timing chain tensioner arm.
5. Install the LH timing chain tensioner.
1 Install the timing chain tensioner and bolts.
2 Remove the drill rod.
6. Install a tie strap to take up the slack in the timing chain.
7. NOTE: The exhaust camshaft sprocket bolt must be fully tightened before tightening the intake camshaft sprocket bolt.
Using the special tool, apply 10 Nm (89 inch lbs.) counterclockwise to the LH exhaust camshaft sprocket and tighten the camshaft sprocket bolts in two stages.
^ Stage 1: Tighten to 20 Nm (15 ft. lbs.).
^ Stage 2: Tighten an additional 90°.
8. Remove the special tool.
9. Remove the tie strap.
10. Install the special tool on the right cylinder head.
11. Position the RH timing chain over the RH intake camshaft sprocket and over the crankshaft gear.
12. Install the RH timing chain Guide.
13. Install the RH timing chain tensioner arm.
14. Install the RH timing chain tensioner.
1 Install the timing chain tensioner and bolts.
2 Remove the drill rod.
15. Install a tie strap to take up the slack in the timing chain.
16. NOTE: The exhaust camshaft sprocket bolt must be fully tightened before tightening the intake camshaft sprocket bolt.
Using the special tool, apply 10 Nm (89 inch lbs.) counterclockwise to the RH exhaust camshaft sprocket and tighten the camshaft sprocket bolts in two stages.
^ Stage 1: Tighten to 20 Nm (15 ft. lbs.).
^ Stage 2: Tighten an additional 90°.
17. Remove the special tool.
^ Remove the tie strap.
18. Raise the vehicle.
19. Remove the special tool.
20. Install the CKP sensor and the torque converter cover.
21. Lower the vehicle.
22. Install the engine front cover.