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Compression Test
Posted: November 16th, 2019, 5:25 pm
by David R.
Just got starter rebuilt and installed and ran compression test. Likely not the most accurate gauge in the world but according to it I have a consistent 75 psi on all four cylinders. Is that acceptable?
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Re: Compression Test
Posted: November 16th, 2019, 5:45 pm
by 1crosscut
75 on all for would be excellent compression. Stock heads usually give up to around 65 lbs compression. Is this a high compression head?
The main thing even if compression on the lower side is to have all 4 cylinders to have readings that are pretty close to each other.
Re: Compression Test
Posted: November 16th, 2019, 6:10 pm
by David R.
How do you tell if it’s a stock or high compression head?
Re: Compression Test
Posted: November 16th, 2019, 6:25 pm
by 1crosscut
You would need to have the head off to look at the shape of the domes in the head.