Hi,

Yeah the timing belt tensioner was replaced during a prior timing belt change almost a year ago. I checked the engine compression a couple of days ago and it was 135 PSI on all cylinders. I reset the distributor and changed the o-ring when I had the distributor out. I started it up and it ran good. I went to set the ignition timing because it was advanced off the scale. I was able to set the "ignition" timing to 12 degrees BTDC. The trooper was running good for a brief time. I had it running for about 10 minutes before going to take it on a test run. The trooper started running bad just as I was going to take it out on the road. The trooper was idling around 500 RPM. Prior to resetting the distributor I was having trouble geting the "ignition" timing set. Would the distributor assembly itself cause the "mechanical" timing to jump a tooth over time???? Would the electrical problems that I was having effect the distributor assembly itself??? Thanks.

Mike