 Cylinder Compression Issue |
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| rickso71 |
 Jun 30 2005, 10:24 PM
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#1
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Member  Group: Members Posts: 74 Joined: 31-October 04 From: Derry, NH Member No.: 3,041  |
What are normal compression numbers?
1.7L engine was re-built by PO but was never started. Tonight I adjusted the valves (he'd left them very loose) and checked cylinder compression... about 90 lbs. except #1 only 70 lbs. Hoping I have a valve that's just sticking a bit and it will loosen up after running a while? |
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| scruz914 |
Jun 30 2005, 11:21 PM
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#2
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Senior Member Group: Members Posts: 815 Joined: 26-February 04 From: Santa Cruz, CA Member No.: 1,724 |
I am guessing that you need to run it for a while to seat the rings before the compression comes up. How long ago was the engine rebuilt? Hopefully the PO didn't leave the cylinders dry and let them rust.
-Jeff |
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| rickso71 |
Jul 1 2005, 08:14 AM
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#3
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Member Group: Members Posts: 74 Joined: 31-October 04 From: Derry, NH Member No.: 3,041 |
THe engine has signs of oil around the intake, exhaust valves, etc. so I'm pretty sure he left it lubed up. I'm thinking the same thing,... run it for a while to seat everything. Not sure when it was rebuilt but was at least three years ago.
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