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Old 03-08-2009, 11:41 AM
strelnik strelnik is offline
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Join Date: Aug 2007
Location: SE Mich
Posts: 3,285
leak-down tests are important

Quote:
Originally Posted by leathermang View Post
Second nhdoc's post.
x 3.
Given that you can "preposition" the piston in each cylinder at multiple points you probably have more than you need to tell you regarding the compression.

If each cylinder in the the engine holds and doesn't leak initially, especially at multiple points, I believe you can safely assume it will compress air+fuel within the normal operating range.

BTW, How much air are you pumping in, when you make the test? do you have a way to ensure it's the same in each cylinder, like a gauge and a one-way valve on your air source?
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