89 2.5L Cylinder PSI - Off-Road Forums & Discussion Groups
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post #1 of (permalink) Old 06-28-2001, 12:28 AM
Wrangler88
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89 2.5L Cylinder PSI

i did a compression check on my buddies 89 2.5L and this is what it came out, the first cylinder, closest to the hood came out to 55 PSI, the second 115PSI, the third 135PSI and the last 145PSI, what the spec for this motor, the problem is all the plugs are covered with oil, an its burning it but u can't see it in the exhuast, it uses like a quart a week or so, i tried putting a teaspoon of oil in the first cylinder and it didn't change at all, i was told this would mean its a bad head, the last 3 cylinders seem to be ok, but still have fouled plugs, so i'm taking it as a bad head, since its not the original one on it, we got it form a friend who said it was in good working shape and well, this is what happned, so does this seem like its the head, and what in the head would need to be replaced.. thanks!

(\/)ikey
1988 Wrangler Laredo 4.2L w/5spd
1995 Wrangler 2.5L w/ 5spd / 32"BFG MT's
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