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bad compression...

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Old Feb 9, 2009 | 04:22 PM
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Originally Posted by A-ron
a good ka with my compression tester comes out to be 215 i wouldnt get anything less than 185.
if i was in ur shoes i would just rebuild the bottom end if you have someone do it. it should not be that expensive.
new head gasket,bearings,rings,check the valves
you have something wrong with your motor, your tester, or your test method. over 200 is not right.

Standard is 179 psi
Service limit is 151 psi
With max difference of 14psi
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Originally Posted by osama tim laden
This things too low... raise it off the towhooks.
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Old Feb 9, 2009 | 04:23 PM
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all mine were over 200 but nothing over 215...
try opening the throttle wide open when you do it again. it should go up a little..
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Old Feb 9, 2009 | 04:24 PM
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Originally Posted by NeedCAforS13
you have something wrong with your motor, your tester, or your test method. over 200 is not right.

Standard is 179 psi
Service limit is 151 psi
With max difference of 14psi

i used more than one tester on ka's
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Old Feb 9, 2009 | 04:25 PM
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you're doing it wrong. i am looking at a factory service manual.
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Originally Posted by osama tim laden
This things too low... raise it off the towhooks.
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Old Feb 9, 2009 | 04:38 PM
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idk what to tell you bud i was just on google and they say anything over 180 is good.
and i have used this compression tester for more than 4 cars now.
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Old Feb 9, 2009 | 04:48 PM
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Compression numbers vary wildly depending on what tester you're using.

I'm guessing there's something wrong with the original poster's method or tool. If an engine goes bad, you almost never get even compression across the board.
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Old Feb 9, 2009 | 04:49 PM
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well the single cam is more like 180ish
but the dual ka is 9:3:1, 9:5:1, 9:8:1
even at 9:3:1 it is going to come out about 200.and the hight comp ratio the higher the numbers will be....
i have an s14 ka in my s13 and im getting 210-215
go on here Nissan KA engine - Wikipedia, the free encyclopedia
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Old Feb 9, 2009 | 06:41 PM
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it was my method i didnt kno you were suposed to have the tb at WOT when turning it over lol i will try agine and let everyone kno
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Old Feb 10, 2009 | 03:40 AM
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will james be building him self a ka here soon? lol sohc pistons ftw lol
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Old Feb 10, 2009 | 04:55 AM
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180 sounds about right,
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