I would hardly call 110 low.  The fact that it is uneven is a problem.
Check the exhaust valve on the cyl. with high compression, to
make sure it  is opening.

            Eric                   86-VW4x4
            vw4x4@fyi.net          86-SS Syncro
            Pittsburgh, PA USA     1936-Chrysler
                                   92-Jetta GWC
            www.fyi.net/~vw4x4/vw4x4.htm

On Mon, 15 Mar 2004, Chip Turpin wrote:

>  The 2.1 in my 89 syncro is showing low compression , 110, 132, 150, and 160 this is after engine is warm. When checked with engine cold it is much higher. why is this? My main question is I was told to do a leak down test. I know what gauge to get but thats about all I know. How much pressure do I put in and how can I tell if it's the valves or rings leaking down or what else can be learned from this test?
>
> Thanks,
> Chip
>