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Compression test results

Old 11-04-2013, 10:47 AM
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Default Compression test results

First here is some history on the motor. It was rebuilt less than 10k miles ago and I overheated it to the point of maxing out the gauge and it cutting off on me. Now here is the results

Dry wet
#1 65 115
#2 85 135
#3 140 190
#4 50 85
#5 90 135
#6 180 240

These results are very odd and I an very confused. does anyone have any idea if it is results of the rings going bad or warping the head or blowing the head gasket? Any ideas welcomed!
Old 11-04-2013, 10:52 AM
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Also I forgot to mention this Is on a cold engine
Old 11-04-2013, 11:43 AM
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Does it run? If so, do it again at normal temperature
Old 11-04-2013, 12:02 PM
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It does run but very rough id rather not if I can help it
Old 11-04-2013, 12:10 PM
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Misfiring?
Old 11-04-2013, 12:19 PM
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Yeah I misses like a ***** when its cold and it hasnt been started in like a week
Old 11-04-2013, 12:32 PM
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those numbers are all over the board..

how does the engine oil smell/look? any milky looking oil?

anything of that nature?
Old 11-04-2013, 12:39 PM
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The oil looks ok its due for a change but besides that its ok no milky color
Old 11-04-2013, 12:42 PM
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put your sniffer to it..

does it smell like death/cooked?

a cylinder leak down test may have to be your next step..

regardless your compression readings are wayyyy to far apart to be called a healthy motor by any means.
Old 11-04-2013, 01:04 PM
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I would just run it up to normal temp and check again.
Old 11-04-2013, 01:09 PM
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I smelled it and it just smelt like burnt oil
Old 11-04-2013, 01:09 PM
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Originally Posted by JeepingDan
I would just run it up to normal temp and check again.
I think ill do that tomorow and re test
Old 11-04-2013, 01:25 PM
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Yea it's not gonna hurt it anymore, but the way your describing it are similar to ones I've had to replace the head gasket or even the head.
Old 11-04-2013, 01:29 PM
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Originally Posted by JeepingDan
Yea it's not gonna hurt it anymore, but the way your describing it are similar to ones I've had to replace the head gasket or even the head.
I sure hope so. If this needs a motor I have to sell it and buy a honda. I dont want a honda.
Old 11-04-2013, 01:34 PM
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Oh man I didn't know Hondas were that cheap ,I mean a good used 4 l.around here are like 5 ,6 hundred bucks.

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