Camshaft Timing Chain and Sprocket Cleaning and Inspection SOHC

Check the timing chain for wear, damage, and cracks.

1. Inspect the chain for wear and damaged links.
2. Inspect the chain guides for wear and cracks.

Chain Track Wear

•	Standard: 0 mm (0 in)

•	Service Limit: 1 mm (0.0394 in)




3. Inspect timing sprocket teeth on the crankshaft, camshaft and key for wear. Inspect the camshaft thrust plate and sprocket thrust surface for cracks and wear.



4. Inspect the tensioner for operation:

4.1.	Release the plunger lock and make sure the piston moves freely.

4.2.	Make sure the oil feed hole is open and not plugged. Submerge the tensioner in oil or solvent. Depress the plunger and observe fluid flow from the tensioner body. Inspect the cylinder block port for blockage.

4.3.	Measure plunger travel (chain and guides installed).

Plunger Travel

•	Standard: 1.16-9.85 mm (0.045-0.0388 in)

•	Service Limit: 18 mm (0.7092 in) max.

Camshaft Timing Chain and Sprocket Cleaning and Inspection DOHC

Check the timing sprocket for wear, damage, and cracks.

1. Inspect the chain for wear and damaged links.
2. Inspect the chain guides for wear and cracks.

Chain Track Wear

•	Standard: 0 mm (0 in)

•	Service Limit: 1 mm (0.0394 in)




3. Inspect timing sprocket teeth on the camshaft gears, the crankshaft gear, and/or the key for wear.



4. Inspect the tensioner for operation:

4.1.	Release the plunger lock and make sure the piston moves freely.

4.2.	Make sure the oil feed hole is open and not plugged. Submerge the tensioner in oil or solvent. Depress the plunger and observe fluid flow from the tensioner body. Inspect the cylinder block port for blockage.

4.3.	Measure plunger travel (chain and guides installed).

Plunger Travel

•	Standard: 1.16-9.85 mm (0.045-0.0388 in)

•	Service Limit: 18 mm (0.7092 in) max.