5.0L MPI Engine Serial OM618927.
read a service bulletin on my issue of a miss fire at higher loads. It also stated to rotate the distibutor 1-2degrees if the issue persisted. I did this and the problem got so bad that at about 2500 RPM it misses so bad it sounds like the ECU is reducing power (are there knock sensors on these motors?)
So I put it back where it was, but now I question what the right postion is (who knows who did what before I was in here). Is there a mark on the base of the distributor to line up to the engine block? The reason I ask is if there is only 45 degrees between cylinder posts in the cap (360 / 8), and I line up TDC to cyl 1, and there is more than 22.5 degrees of advance max, then the spark will jump to the wrong cylinder. Soooo, really you need to place the cap pointing some amount past cyl 1? Does that make sense? Note that the base timing is NOT set by the distibutor location in this engine (no halls or trigger in the dizzy base).
read a service bulletin on my issue of a miss fire at higher loads. It also stated to rotate the distibutor 1-2degrees if the issue persisted. I did this and the problem got so bad that at about 2500 RPM it misses so bad it sounds like the ECU is reducing power (are there knock sensors on these motors?)
So I put it back where it was, but now I question what the right postion is (who knows who did what before I was in here). Is there a mark on the base of the distributor to line up to the engine block? The reason I ask is if there is only 45 degrees between cylinder posts in the cap (360 / 8), and I line up TDC to cyl 1, and there is more than 22.5 degrees of advance max, then the spark will jump to the wrong cylinder. Soooo, really you need to place the cap pointing some amount past cyl 1? Does that make sense? Note that the base timing is NOT set by the distibutor location in this engine (no halls or trigger in the dizzy base).