 Compression Test Results, Need 2.0 Compression Service Limit |
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| Brinks |
 May 10 2009, 08:13 AM
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#1
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Newbie  Group: Members Posts: 2 Joined: 10-May 09 From: Jersey Shore Member No.: 10,349 Region Association: North East States  |
Can somone verify the expected compression test result for a stock '76 2.0 with a 7.6 compression ratio? Also, what would the lower service limit be before considering a rebuild? Thanks...
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| Jake Raby |
May 10 2009, 11:59 AM
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#2
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Engine Surgeon Group: Members Posts: 9,394 Joined: 31-August 03 From: Lost Member No.: 1,095 Region Association: South East States |
Numbers will vary due to the elevation you are testing at, if the throttle is open or close fully as well as engine temperature.
What matters most to me is that the cylinders test within 10% of each other. Here at my elevation a bone stock engine in good shape will generally have about 110 PSI per cylinder with the engine cold. |
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Posts in this topic
Brinks Compression Test Results May 10 2009, 08:13 AM
Cap'n Krusty I like to see 125. Any variation of 10% or an ave... May 10 2009, 08:24 AM Cap'n Krusty Accidental double post ........ May 10 2009, 08:25 AM sean_v8_914 they shold all be within 10% as stated above. if t... May 10 2009, 11:29 AM tod914 I had a shop do mine on the 75 several years ago b... May 10 2009, 02:34 PM Cap'n Krusty On a car with a plenum serving all cylinders, it d... May 10 2009, 02:41 PM Brinks One last bit of info:
The seller states: "Al... May 12 2009, 02:39 PM
Cap'n Krusty Without a retest using a known good compression te... May 12 2009, 02:45 PM |
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