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Low compression 3 of 6 v6 and manifold petrol washing on 3 only

Cruisy2650

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Please help I have low compression on drivers side 3 cylinders 25psi after wet test 50 psi max ..
petrol washing on same side manifold ports

Could one chain side be out timing cause this ..?
 

MACE

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Hi Cruisy2650,

My sincere apologies for the delay in getting back to you. I hope that your problem has been resolved.

Please help I have low compression on drivers side 3 cylinders 25psi after wet test 50 psi max ..
petrol washing on same side manifold ports

Could one chain side be out timing cause this ..?
Going by your member ride, which is either a VZ V6 or VE V6, then it would likely be caused by the timing being out.

If you have any more questions please don't hesitate to ask.

Kindest Regards,
Steve
 

Cruisy2650

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Hi Cruisy2650,

My sincere apologies for the delay in getting back to you. I hope that your problem has been resolved.


Going by your member ride, which is either a VZ V6 or VE V6, then it would likely be caused by the timing being out.

If you have any more questions please don't hesitate to ask.

Kindest Regards,
Steve
Steve,

Thanks for reply no luck I re done timing and still low compression on r/h side cylinders all 75,70,75 psi

L/h side 145,135,140 psi
I see new water pump been replaced and head gasket has no visible breaks but I'm wondering if gasket is stuffed, not sure on these mls type gaskets ..
Could it be head gasket, I took r/h head off just did a water leak yeast on valves and no leaks, have not done a head off pressure test yet..
Gasket looks like mostly all the rubber type seal that sits on surface is missing or worn off..
I hear these gaskets pretty good. I'm wondering if over heated prior to my purchase that's why head compression low..
I purchased car as is not running, I got going but barely wants to idle and runs severely rough.
Any help appreciated

Dean
 

Cruisy2650

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Steve,

Thanks for reply no luck I re done timing and still low compression on r/h side cylinders all 75,70,75 psi

L/h side 145,135,140 psi
I see new water pump been replaced and head gasket has no visible breaks but I'm wondering if gasket is stuffed, not sure on these mls type gaskets ..
Could it be head gasket, I took r/h head off just did a water leak yeast on valves and no leaks, have not done a head off pressure test yet..
Gasket looks like mostly all the rubber type seal that sits on surface is missing or worn off..
I hear these gaskets pretty good. I'm wondering if over heated prior to my purchase that's why head compression low..
I purchased car as is not running, I got going but barely wants to idle and runs severely rough.
Any help appreciated

Dean
 

Cruisy2650

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Yes is a vz alloytec executive
 

Cruisy2650

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This is a recent purchase

Car was scanned by a friends work gscan scanner and he said had no faults at all .
 

Cruisy2650

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I see car has a new water pump
On it so I suspect it may be a
Gasket ..
 

Cruisy2650

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Picture of block
 

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Cruisy2650

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Holden vz 2005 omega v6 alloytec
Head gasket
 

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