Compression Test
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- Posts: 260
- Joined: August 17th, 2019, 1:52 pm
- Body Type: Chassis
- Model Year: 1930
- Location: WV
Compression Test
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?
- 1crosscut
- Posts: 877
- Joined: December 25th, 2010, 7:22 pm
- Body Type: 82-A
- Model Year: 1929
- Location: Lincoln, NE
Re: Compression Test
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.
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.
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Dave
Dave
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- Posts: 260
- Joined: August 17th, 2019, 1:52 pm
- Body Type: Chassis
- Model Year: 1930
- Location: WV
Re: Compression Test
How do you tell if it’s a stock or high compression head?
- 1crosscut
- Posts: 877
- Joined: December 25th, 2010, 7:22 pm
- Body Type: 82-A
- Model Year: 1929
- Location: Lincoln, NE
Re: Compression Test
You would need to have the head off to look at the shape of the domes in the head.
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Dave
Dave