1984 Camaro Z28 Leakdown Test - Pressure Points

Running A Leakdown Test To Determine Engine Condition

John Nelson May 1, 2008 0 Comment(s)

Possible Causes for High-to-Moderate Cylinder Leakage
The cause of low pressure can be determined by listening for escaping air.* Air escaping from crankcase breather, dipstick tube, or sump plug hole: Defective rings or worn cylinder walls

* Air escaping from carburetor: Defective intake valve

* Air escaping from exhaust system: Defective exhaust valve

* Air bubbles in radiator or air escaping from adjacent spark plug hole: Leaking head gasket or crack in block or head Courtesy of Proform

Sources

Proform/Specialty Auto Parts
Roseville, MI 48066

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