Timing Chain & Sprockets (Non-Turbo Models): Inspection

1. Check camshaft and crankshaft sprockets for wear or damage. If crankshaft sprocket replacement is required, remove sprocket using Puller (J-25031).
2. Using spring scale, check timing chain for wear. Using 22 lbs. (10 kg) force, pull chain and measure length of 40 chain links. See Fig 1 .
3. Length of chain should be 15" (381 mm). If length exceeds 15 5/32" (385 mm), replace chain. Check chain tensioner, tensioner guide pins, guide rail, and chain guide for wear. Replace as necessary.
4. Make sure that tensioner guide rail and chain tensioner move freely on guide pins. Ensure that oil jet in chain guide is not plugged. If oil jet is removed, install oil jet with hole pointing toward crankshaft.

Fig 1: Timing Chain Stretch Test (Non-Turbo Models)