Originally Posted by Mitch01roo

I have done a compression test today and got 12 bar on all cylinders does this sound about right? I drained the oil and there was hardly anything in it, put 4 litres of new oil in and the tappets have got much quieter. Checked turbo bearings and only very slight play. What is the sump capacity on the ZVH as mine doesnt have a dipstick? How would I go about about fitting an oil pressure gauge? Thanks, Mitch.