Valve Clearance: Notes
- Disconnect battery and remove camshaft cover. Loosen camshaft bearing cap nuts and retighten to 10-14 ft. lbs. (1.4-1.9 mkg). Rotate engine. Check and record clearance between cam heel and tappet. Maximum clearance is present when cam is in vertical position.
- If clearance is not within specifications, remove camshaft and individually lift out each tappet and adjusting shim.
- Using a micrometer, measure thickness of adjusting shim removed. Add to this the measured valve clearance and subtract the specified clearance from the total. This will offer you the thickness of adjusting shim necessary to bring the clearance within specifications.
- Install tappets and add shims as needed. Install camshaft and tighten bearing caps. Recheck valve clearance, and, when correct, replace camshaft cover.