Timing Chain: Testing and Inspection
Cam Chain Inspection
Special Tools Required
- Cam Chain Inspection Gauge 07AAJ-RWCA100
1. Remove the front wheels.
2. Remove the front splash shield Front Splash Shield Replacement.
3. Remove the four ignition coils and the four spark plugs Service and Repair.
4. Remove the cylinder head cover Cylinder Head Cover Removal.
5. Rotate the crankshaft pulley two turns clockwise.
6. Set the No. 1 piston at top dead center (TDC). The punch mark (A) on the VTC actuator and the punch mark (B) on the exhaust camshaft sprocket should be at the top. Align the TDC marks (C) on the VTC actuator and exhaust camshaft sprocket.
7. Measure the clearance between the cam chain (A) and the tensioner arm (B) with the cam chain inspection gauge.
- If the clearance is OK, Go to step 22.
- If the clearance is more than the service limit, Go to step 8.
8. Remove the cam chain Cam Chain Removal, and check the teeth on the crankshaft sprocket, the VTC actuator, and the exhaust camshaft sprocket for wear and damage. If any of them are worn or damaged, replace if necessary.
9. Check the oil passage on the cam chain auto-tensioner for clogs. If the cam chain auto-tensioner is clogged, replace it.
10. Remove the power steering pump. Do not disconnect the power steering hoses from the pump.
11. Attach the universal eyelet to the drive belt auto-tensioner.
12. Remove the top corner clip from the front grill on both sides. Place the engine support mount pads over the hood edge cushions, and align the pins with the clip hole. Remove the lids from both sides of the cowl cover. Install the engine support hanger (AAR-T-1256), then attach the hook to the universal eyelet. Tighten the wing nut by hand to lift and support the engine/transmission.
13. Remove the oil pan Engine Oil Pan Removal.
14. Measure the length of the oil pump chain auto-tensioner rod.
15. If the length is over the service limit, replace the oil pump chain. When replacing, check the teeth on the crankshaft sprocket and the oil pump sprocket for wear and damage. If any of them are worn or damaged, replace if necessary.
16. Check the oil passage on the oil pump chain auto-tensioner for clogs. If the cam chain auto-tensioner is clogged, replace it.
17. Install the oil pan Engine Oil Pan Installation.
18. Support the engine with a jack and a wood block under the oil pan.
19. Remove the special tools from the engine and vehicle.
20. Install the new cam chain Cam Chain Installation.
21. Install the power steering pump.
22. Install the cylinder head cover Cylinder Head Cover Installation.
23. Install the four spark plugs and the four ignition coils Service and Repair.
24. Install the front splash shield Front Splash Shield Replacement.
25. Install the front wheels.