Cold Compression test 2.0, 4 cylinders at 150 result |
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Cold Compression test 2.0, 4 cylinders at 150 result |
ndfrigi |
Jun 9 2020, 02:56 PM
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#1
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Advanced Member Group: Members Posts: 2,953 Joined: 21-August 11 From: Orange County Member No.: 13,474 Region Association: Southern California |
two weeks ago I drained oil, cleaned the strainer screen and taco plate cover, add new oil and filter and did the valve adjustments.
Before I did the valve adjustments, the compression rates (cold) was 150, 148, 165 and 175. So after valve adjustments still cold engine, all are around 150. Is it a good compression as cold engine and what should I expect when the engine is warm? thank you! |
BeatNavy |
Jun 9 2020, 03:22 PM
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#2
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Certified Professional Scapegoat Group: Members Posts: 2,933 Joined: 26-February 14 From: Easton, MD Member No.: 17,042 Region Association: MidAtlantic Region |
IMO those are very good cold numbers.
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ndfrigi |
Jun 9 2020, 03:48 PM
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#3
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Advanced Member Group: Members Posts: 2,953 Joined: 21-August 11 From: Orange County Member No.: 13,474 Region Association: Southern California |
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VaccaRabite |
Jun 9 2020, 04:22 PM
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#4
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En Garde! Group: Admin Posts: 13,554 Joined: 15-December 03 From: Dallastown, PA Member No.: 1,435 Region Association: MidAtlantic Region |
Excellent cold numbers.
They will go up when the engine is warm, but with cold numbers around 150 I'd not bother with it. Zach |
Tdskip |
Jun 9 2020, 04:37 PM
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#5
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Advanced Member Group: Members Posts: 3,697 Joined: 1-December 17 From: soCal Member No.: 21,666 Region Association: None |
I think you’re good – exciting update, press on my friend, press on.
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ndfrigi |
Jun 9 2020, 06:37 PM
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#6
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Advanced Member Group: Members Posts: 2,953 Joined: 21-August 11 From: Orange County Member No.: 13,474 Region Association: Southern California |
Thank you Zach and Tom!
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porschetub |
Jun 9 2020, 07:17 PM
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#7
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Advanced Member Group: Members Posts: 4,725 Joined: 25-July 15 From: New Zealand Member No.: 18,995 Region Association: None |
Cold test tends to provide more variation ,warm test will put you up further and more even between cylinders.
Good luck. |
ndfrigi |
Jun 9 2020, 07:55 PM
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#8
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Advanced Member Group: Members Posts: 2,953 Joined: 21-August 11 From: Orange County Member No.: 13,474 Region Association: Southern California |
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iankarr |
Jun 9 2020, 09:04 PM
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#9
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The wrencher formerly known as Cuddy_K Group: Members Posts: 2,512 Joined: 22-May 15 From: Heber City, UT Member No.: 18,749 Region Association: Intermountain Region |
150 is a really solid number...but it's also great that you have little variation between cylinders. Has your engine been rebuilt? How many miles?
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