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No compression on No 2 cylinder

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Old 08 December 2006, 09:52 AM
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Eric_the_Viking
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Default No compression on No 2 cylinder

1998 Impreza Turbo

Took it in after what felt like a misfire, only to be told there's no compression in one of the cylinders.

This happened to me 2 years ago (same cylinder) & when they stripped it the piston was damaged & I had a new short engine fitted for about £3k

The problem now is that the car's only worth about £3k - £4K (if it was fixed) so it's not going to be worth repairing it if it''s another engine gone.

Is there any likelihood it's anything else wrong (headgasket?)
It was low on oil and virtually out of water when I checked it.

Anyone want to make me an offer to but this as a repair project - I'm near Hertford?

Any advice would be much appreciated

Thanks

Eric
Old 08 December 2006, 10:46 AM
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Heple
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You have PM
Old 08 December 2006, 11:06 AM
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Shark Man
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Was the original cuase of no.2 failure rectified. Normally that is caused by fueling issues from faulty sensors or dodgy modifications. If this was not properly sorted out with the last engine, it could well be the new engine has suffered the same demise.

You can hope the head gasket has gone, if it's just the one cylinder affected, it will most likely be blowing into the water jacket, and would usually be accompanied by overheating and coolant usage. Seeing the engine has been messed with, as such there is that posssibility (dodgy torque wrench used, cheap gaskets, air locks etc). So there is an unknown factor in this....

In both cases the engine has to be removed and the cylinder head on the affected piston needs to be removed for inspection. So up to that point labour costs would be identical.
Old 08 December 2006, 06:36 PM
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Normski
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Could be a bent valve in that cylinder. Cheaper to fix if it is that.
Old 08 December 2006, 07:41 PM
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merlin24
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Could even be tight tappets giving a low Comp.reading
Old 09 December 2006, 10:13 AM
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Area 52 Autosport
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Get a cylinder leakage test done, I'll wager it's more serious than a head gasket though, there are usually other indicators with a HGF and a misfire with a HGF is uncommon. Cylinder leakage test will identify the specific area of the problem.
Old 09 December 2006, 03:57 PM
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Shark Man
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Surely if he knows there is no compression on no.2 cylinder, it would have had a already been done, no?
Old 09 December 2006, 05:03 PM
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Area 52 Autosport
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Cool

Originally Posted by Shark Man
Surely if he knows there is no compression on no.2 cylinder, it would have had a already been done, no?
A cylinder leakage test is quite different from a compression test.
Compression test only tells you the compression, CLT should allow you to determine where the problem is specifically.
Old 16 December 2006, 07:27 PM
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Eric_the_Viking
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Default Any offers?

Hi,

Thanks for the advice guys.

I think it might be best for me to sell the car.
It could make money for the right person.

I'll put it up on the For Sale section in the New Year and see if anyone wants it.

Eric
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