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Joined: Nov 2008
Posts: 58
Shade Tree Mechanic
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OP
Shade Tree Mechanic
Joined: Nov 2008
Posts: 58 |
What is the 171 4cyl compression supposed to be? I recently pulled a compression test and got a 70psi on all 4 cyl.Am I in good range? trooper
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Joined: Nov 2001
Posts: 19,758 Likes: 64
ChatMaster - 15,000
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ChatMaster - 15,000
Joined: Nov 2001
Posts: 19,758 Likes: 64 |
You are in a good range. The compression ratio is ~5:1 Calculating 5 x 14.7 lbs atm. pressure givens 73.5 lbs as the calculated pressure.
How Sweet the roar of a Chevy four!
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