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cylinder three has low compression (125psi) Help!

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Old Sep 25, 2002 | 11:10 AM
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Death_to_Thieves's Avatar
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From: ShitHole, CT
Default cylinder three has low compression (125psi) Help!

Whats up guts I have a B17a and I had a compression test done on it at the dealership and they told me that cylinder 3 has low compression(125psi) but all others are at 195. What could be causing this and how could I fix it?? Thanks
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Old Sep 25, 2002 | 11:19 AM
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Default Re: cylinder three has low compression (125psi) Help! (8000KReV)

they should have done a leakdown for you and tell you what was causing it, can be piston rings, headgasket, valveseal or even a cracked piston ... hard to say from a simple compression number.

Greg
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Old Sep 25, 2002 | 11:22 AM
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Default Re: cylinder three has low compression (125psi) Help! (8000KReV)

Re-test.....verify low

Add 1 teaspoon of oil then test again. If still low = Head.
If raises = Piston rings.
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Old Sep 25, 2002 | 12:00 PM
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Default Re: cylinder three has low compression (Spade)

Re-test.....verify low

Add 1 teaspoon of oil then test again. If still low = Head.
If raises = Piston rings.
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Old Sep 25, 2002 | 12:38 PM
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Default Re: cylinder three has low compression (Spade)

where do you add the teaspon? right into the spark plug opening or in the oil fill cap on valve cover?
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Old Sep 25, 2002 | 12:49 PM
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Default Re: cylinder three has low compression (BrandonClaps)

where do you add the teaspon? right into the spark plug opening or in the oil fill cap on valve cover?
Yeah right into the plug opening. Also I'd get a leakdown test too.


[Modified by 3rdGteg, 9:50 PM 9/25/2002]
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