Celica L4-1.8L (2ZZ-GE) (2005)
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Timing Chain: Service and Repair
Inspection and Replacement
INSPECTION
1. INSPECT TIMING CHAIN AND TIMING SPROCKETS
a. Using a vernier calipers, measure the length of 16 links with the chain dully stretched.
Maximum chain elongation: 122.6 mm (4.827 inch)
If the elongation is greater than maximum, replace the chain.
HINT: Mate the same measurements pulling at 3 or more places selected at random.
b. Wrap the chain around the timing sprocket.
c. Using a vernier calipers, measure the timing sprocket diameter with the chain.
NOTICE: Vernier calipers must contact the chain rollers for measuring
Minimum sprocket diameter (w/ Chain):
Camshaft: 97.3 mm (3.831 inch)
Crankshaft: 51.6 mm (2.031 inch)
If the diameter is less than minimum, replace the chain and sprockets.
2. INSPECT CHAIN TENSIONER SLIPPER AND VIBRATION DAMPER
Measure the chain tensioner slipper and vibration damper wears.
Maximum wear: 1.0 mm (0.039 inch)
If the wear is greater than maximum, replace the slipper and/or dart per.
