Thread: Head Service
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Old 07-13-2009, 04:37 PM
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SilvrEclipse SilvrEclipse is offline
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Re: Head Service

A leak down test pressurizes the cylinder and where ever you have a 'leak' will leak this air out. If its the rings you can listen at the oil cap or dipstick and hear air coming out. If its the valves you will hear air in the intake or exhaust.
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