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On 11 Dec 99, at 9:58, Chris Picknally wrote: > I did check the TDC with the stick test and it does seem to be a bit off > from the marks. I found it to be in the middle between the large on the left > and the 1st mark on the right. I double checked several times and It seems > to be the same. > > Question #1 - What is too far advanced. My car runs smooth at just past the > 3rd mark to the right + a tad. When do I burn up? Would you recommend an oil > temp gague for my car and where to get it. Am I not to worry. I saw on > another post someone said 1ΒΌ or so made a big difference in his temp? > I do live in AZ Small changes are not important, but you want to be sure about TDC. That's the spot that you're shooting for. Use the timing light to verify that the mech advance is working; you should see the timing change as you up the RPMs with the throttle. If it doesn't then you have a problem that must be fixed (I can rebuild your dist.) I wouldn't get too excited about overheating, just keep working to get things sorted out and back to where they should be > Question #2 - Does advancing the timing help an over rich condition? Does > the strange timing of my car sound like an over rich condition. Plugs are > slightly fouled dry black, and I backfire and spit a bit if the timing is > closer to TDC. No, over rich is over rich. Both timing and mixture need to be right. > Checked the # of the Pressure sensor and It checks out according to the > chart in a parts book I have #0280100007 311906051C Yes. > Checked the compression on the motor stone cold while I had the plugs out. > Got 90-95 PSI on all 4. I know this is cold but I thought I would take note. > At least they are consistant. Consistent, but low. Is there any chance that the compression on this engine has been lowered? It is possible that rich running has worn out the pistons, rings, and cylinders, but it is also possible that the low compression is just due to excessive carbon buildup from never getting warmed up. Is your thermostatic cooling system all there and working. Jim - ******************************* Jim Adney, jadney@vwtype3.org Madison, Wisconsin, USA ******************************* ------------------------------------------------------------------- Too much? Digest! mailto:type3-d-request@vwtype3.org Subj=subscribe