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Discussion Starter #1
I did a compression test. They are all over the charts.

But one goes up to 160ish and immediately leaks/bleeds down.
What would cause this? I know it looks bad but I want to research before I start tearing it down.
 

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Discussion Starter #3
Buddy just pointed out that the tester could be in question.

The reed valve is supposed to hold the pressure for the reading.
 

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Discussion Starter #5
So it's reeeeeeeeally weird that only this cylinder "leaks".

I've even gone back to it and tested again, and it does it. I wonder if there is somthing on the piston sticking up.
 

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Which cylinder is it? Does the gauge have a hose that screws into the hole or is it the solid kind that you just press tightly and hold?

Is the valve in the hose going to the plug hole, or in the gauge itself? Maybe it could be routing of the hose/gauge causing a leak. Once pressure goes in, it shouldn't leak out as that is a function of the gauge.

Just some thoughts... :D
 

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Discussion Starter #7
Number 5.

Screws in and the valve is at the end that is into the head.

I'm going to go aout and look again as the rain ha stopped for a bit.
 
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