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Leakdown test help needed

 
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Old 09-03-2012, 06:22 PM
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Leakdown test help needed

I just bought a new Cylinder Leakage Tester (leakdown tester?) from Harbor freight, but I'm not sure I'm using it correctly. As with most items from HF, the instructions are a bit vague. The instructions basically say to turn the knob to allow compressed air into the cylinder, until the leakage gauge reads "0"; you can now read the amount of leakage on the gauge as a percentage loss.

Following those instructions, I show no leakage (on the leakage gauge) on any cylinder, even 3, that has air obviously leaking from the intake valves. I do notice that 3 requires a greater PSI on the pressure gauge to get a 0 leakage reading then the other cylinders, but once the leakage gauge reads 0, it stays there.

Does this seem right? Are there any leakdown DIY's that I was unable to find utilizing the search feature?

Thanks
Chip
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Old 09-03-2012, 06:53 PM
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Re: Leakdown test help needed

This video should help you. It's been a while since I watched it but i believe you adjust the leakage to zero before checking each cylinder.

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