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Put compressed air to cylinder thru plug[240-260/1980] posted by JohnB on
Friday, 29 May 1998, at 8:54 a.m.
See where the compressed air comes out.
You will hear it...
tailpipe...bad exhaust valve.
throttle body/carb...bad intake valve
take off oil cap...if you hear it through there it's blowby...but unlikely since you left oil in the cylinder for 8 hours.
Worst case....open the radiator cap or expansion tank...bubbles there indicate cracked cylinder or head or head gasket failure...
Re: Put compressed air to cylinder thru plug[240-260/1980] posted by Ed Lipe on
Friday, 29 May 1998, at 12:48 p.m.
This is also the key ingredient to a leak-down test. put pressure to the cylinders, and see how long it holds.
ED7, '51 R25, '65 R69S, '67 1600 GT, '86 745 TD, '90 240 GL, '95 RWL