Timing Chain: Inspection
- Check chain, sprockets, tensioner, and chain dampers for wear. Replace chain tensioner if width is less than .43" (11 mm). Minimum size for left and right side chain dampeners is .02" (.5 mm).
- Measure length of timing chain with chain fully stretched. Maximum distance between 17 links should be 5.79" (147.0 mm). See Fig 1.
NOTE: Check chain length between 17 links.
- Wrap timing chain completely around camshaft sprocket. Using a Vernier caliper held parallel to the sprocket, measure the outer sides of the chain rollers. Using the same method, measure the crankshaft sprocket and chain.
- The minimum dimension for crankshaft sprocket and chain is 2.339" (59.4 mm). The minimum dimension for camshaft sprocket and chain is 4.48" (113.8 mm). If either measurement is less than minimum, replace chain and both sprockets.