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Old 02-22-2021, 12:15 PM   #31
JayJay
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Join Date: Jan 2020
Location: SF Bay Area
Posts: 1,088
Default Re: Looking for opinions - compression low on 2 & 3

Quote:
Originally Posted by alexiskai View Post
For those without the inclination or ability to DIY it, you can buy gently used kits on eBay for a decent amount. I spent $55 to get an OTC 5609 kit. You can run these kits at 90 psi.
I use the OTC 5609 kit as well, same reason - name brand inspires a bit of confidence in me that it will work well. Yes, you can easily assemble your own, but I have better uses of my time.

I did find that using this kit at close to 100 psi on the Model A is enough to push the piston down, so be sure to put it in gear before your test.

You can also do the leakdown test with piston down to see if you can hear bubbling in the radiator that might indicate a cylinder wall crack.

JayJay
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JayJay
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