Timing Chain & Sprockets: Inspection
- Check camshaft and crankshaft sprockets for wear or damage. If crankshaft sprocket replacement is required, remove sprocket using a puller.
- Using tension measuring gauge, check timing chain for wear. Using 22 lbs. (10 kg) force, pull chain and measure stretch over a length of 40 chain links. See Fig 1 .
- The standard distance is 15" (381 mm). If distance measured exceeds 15.2" (385 mm), replace chain. Check automatic adjuster, tensioner guide rail, and chain guide for wear. Replace as necessary.
- Make sure that tensioner guide rail and automatic adjuster move freely on mounting pins. Pins and clips are replaceable.
- Ensure that oil jet in chain guide mounting is not plugged. If oil jet is removed, install with oil jet pointing toward the crankshaft.