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on 26/5/2003 6:00 AM, Shad Laws at shad@lnengineering.com wrote: > Before you continue to pull your hair out, at *least* do a poor-man's > compression check. Disconnect the points lead from the coil and turn the > engine over with the starter, paying careful attention to the four pulses > you hear. If all four pulses are the same length, then compression > *probably* isn't the cause of the major backfiring. If you hear one or more > fast pulses, you found your culprit. You have a major compression leak, and > no amount of igntion and carburetor tuning will help. OK, I will give that a try. > If this is the case, the first thing to do is double-check your valve > adjustment. If you have a valve that's too tight, it will cause the > compression leak (obviously, since the valve isn't closed :-). If this > doesn't help, then do a complete compression check, find the culprit > cylinder, and rip out the engine. I will recheck those as well, perhaps the valves are settling themselves in after not being driven much. I can hope can't I? ;-) Thanks, Ben Doughney '75 1200L '63 1200 - Ringo '71 1600TL '65 1500N - Val http://members.tripod.com/~superkafer/ ------------------------------------------------------------------- List info at http://www.vwtype3.org/list | mailto:gregm@vwtype3.org