Cooling System
- With engine stopped, wipe radiator filler neck seat clean. Fill radiator to correct level. Attach cooling system tester to radiator and pump until pressure is at upper level of radiator rating. If pressure drops, inspect for internal leaks.
- If no leaks are apparent, detach tester and run engine until normal operating temperature is reached. Reattach tester and pump until pressure reaches approximately 7 psi (.5 kg/cm2
). Race engine. If needle on tester fluctuates, it indicates a combustion leak.NOTE: Pressure may build up quickly. Release any pressure above the limit of pressure cap specifications or cooling system damage may result.
- If needle does not fluctuate, race engine a few more times and check for water at tailpipe. Excessive water would indicate a faulty head gasket, cracked block or cylinder head near exhaust ports. Remove oil dipstick and if water globules appear in the oil, a serious internal leak is indicated.