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Old 07-06-2012, 09:30 AM
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Originally Posted by Patriot Services View Post
Personal theory on testing at past TDC. If there is any ridge at the cylinder top it can interfere with the ring to cylinder contact. I have an OTC model that's probably 20 years old. This is important info. Guys throw tons of parts at a problem when only to find out its lacking enough compression to even start.

But that's what Motor Honey is made for. Right?
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If there is a ridge at the top of the bore...there is probably another just like it at the bottom of the bore..The ridge is a result of worn rings and/or a "Piston Slappin' "..As the purpose of the leakdown test is to best figure the internal condition of the valves and rings without taking it apart..The more info you can get...The better...
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