MR2 Spyder L4-1.8L (1ZZ-FE) (2001)
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a. Using vernier calipers, measure the length of the 16 links with the chain fully stretched.
Maximum chain elongation: 122.6 mm (4.827 inch)
If the elongation is greater than maximum, replace the chain.
HINT: Make the same pulling measurements at 3 or more places selected at random.
b. Wrap the chain around the timing sprocket.
c. Using vernier calipers, measure the timing sprocket diameter with the chain.
NOTICE: Vernier calipers contact the chain rollers for measuring.
Minimum sprocket diameter (w/ Chain)
If the diameter is less than minimum, replace the chain and sprockets.
2. INSPECT DRIVE BELT IDLER
Check that the pulley rotates smoothly.
If necessary, replace the bearing.
3. 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 damper.