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Low compression

 
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bvolden
Alfa Arna


Joined: 15 May 2003
Posts: 8
Location: Trondheim, Norway

PostPosted: Thu Jul 24, 2003 5:31 pm    Post subject: Low compression Reply with quote

Measured the compression and it read as follows:
Left side 6 and 9
Right side 12 and 12.
Thought the gasket by the cylinders had blown, but it was fine. What else can i do? The damn thing runs bad and I need your advise!

Sincerly
Bjornar
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Ian M
Green Cloverleaf


Joined: 13 Mar 2003
Posts: 911
Location: Bath Somerset

PostPosted: Fri Jul 25, 2003 10:39 am    Post subject: Reply with quote

It could be valves coked up and not seating properly.
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ChrisC
Alfa Sprint


Joined: 13 Mar 2003
Posts: 152
Location: Frome

PostPosted: Fri Jul 25, 2003 1:12 pm    Post subject: a Reply with quote

Chuck a little oil in each cylinder and do a compression test again. if results improve, its the piston rings, if they stay the same its the valves..
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Alfa Sprint QV - Gone to a better home and in happier health for it
Silver Lancia Beta HPE Volumex - under restoration
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Admin
Site Admin


Joined: 19 Feb 2003
Posts: 1223
Location: Stafford, UK

PostPosted: Sat Jul 26, 2003 10:35 am    Post subject: Reply with quote

Hi

I would try the trick with the oil, but also check the cam timing. It does seem a little convenient that it is fine on one bank but low on both cylinders on the other bank. The car will run with the cam timing a tooth out.

All the best

Keith
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