Camshaft Bearing Replacement

Inspect cam face and journals, ensuring that they are not worn or scored. Using a micrometer, measure cam height. Standard cam height for 1490 cc engine is 1.737" (44.12 mm) for intake and exhaust. Standard cam height for the 1970 cc engine is 1.7718" (45.004 mm) for exhaust cam lobes and 1.7731" (45.037 mm) for intake lobes. Wear in excess of 0.008" (0.2 mm) requires replacement of camshaft.
Measure diameter of camshaft bearing journals. If wear is more than 0.002" (0.051 mm) below minimum standard diameter, camshaft must be ground to accept 0.010" (0.25 mm) 0.020" (0.50 mm) or 0.030" (0.75 mm) undersize bearings.
Inspect camshaft bearing clearances using Plastigage method. If standard clearances are exceeded, replace bearings. If new bearings are properly fitted, correct clearance can be obtained without filing, shimming or scraping.
Using a dial indicator, check camshaft out-of-round. Camshaft must not exceed 0.0012" (0.030 mm) out-of-round.
Check camshaft end play using a feeler gauge. Standard clearance is 0.001 - 0.007" (0.025 - 0.178 mm). If wear limit of 0.008" (0.20 mm) is exceeded, replace the thrust plate.