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Guest Message by DevFuse

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got 70 psi on front passenger side cylinder

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3 replies to this topic

#1 Scott in Bellingham

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Posted 26 May 2012 - 01:20 AM

whats it need? its a 91 ej22 low comp one cylinder?

#2 ivans imports

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Posted 26 May 2012 - 10:54 AM

valves or rings check for smoke out of oil cap when runing or uneveness out of exhaust

#3 Gloyale


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Posted 26 May 2012 - 11:02 AM

Do a leakdown w/ compressed air.

If you can hear air wooshing out a valve, either inatke or exhaust, you can pull heads and replace valve.

If the air leaks into the crankcase, you've got ring issues.....probably better to look for a new shortblock. Toss that case aside for a rebuild later.

#4 GeneralDisorder


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Posted 27 May 2012 - 12:17 PM

You can do a leakdown or you can put a few squirts of oil in the cylinder and retest. If it's rings the reading will shoot way up. If it's valves it may go up a little but not to 185 where it should be.


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