Poll

why have i got compression on 3 + 4 but not 1+ 2?

gti 1.8 turbo
2 (100%)
AUM engine
0 (0%)

Total Members Voted: 2

Author Topic: no compression on 1 and 2 gti 1.8 turbo  (Read 970 times)

Offline joeblogs

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no compression on 1 and 2 gti 1.8 turbo
« on: 14 July 2010, 20:59 »
Brought car cheap hence fault, checked timing, all good and oringinal cam belt. removed head found inlet valves bent on 1 and 2 and exhaust camshaft bearing nearest pully is worn and head bearing face is scored, yet all others are ok and oily. Also can i fit any other 20v head other than a AUM or has it got to be a AUM?

Offline tech1889

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Re: no compression on 1 and 2 gti 1.8 turbo
« Reply #1 on: 14 July 2010, 22:02 »
you need to find out why they have bent before changing the head.. why have they dropped a valve ?? for it to have bent valves in cylinder 1 and 2 you would expect maybe a cambelt snap and piston just slammed into valve which means maybe piston damage aswell..
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Offline Wayne

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Re: no compression on 1 and 2 gti 1.8 turbo
« Reply #2 on: 14 July 2010, 23:32 »
As above, check further.