RangeRoverMad

New Member
Hi all
I've had endless amount of problems trying to get my 3.9 to run right,
but I did a compression test the other day,
And found that 7 cylinders read about 12 Bar, while cylinder 3 read 13.1 bar

Is there any thoughts to why there is one cylinder with a compression that is more than a Bar higher than the others?
 
the one that is high is leaking oil into it.???.ie dodgy valve stem seal??????
 

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