projectredsled
clackin along......
im new to diesels and i just recently picked up an 86 f250 with the 6.9 in it. im reading up and trying to learn as much as i can. The truck starts good and runs pretty good (as far as i can tell) but after driving it 30 minutes or so or after long idling it seems to loose power and sometimes it gets jerky with throttle. I looked at the IP timing mark to see if it was static timed when the previous owner installed the new pump but the two marks (one on the cover and the other on the pump) are WAY off. the cover mark is at 12 o clock but the mark on the pump is a little past 2 o clock position (even though the IP looks like it is sitting in there straight up.) I do know that the P.O. said he swapped the pump for one that came off a 7.3 but from what i can tell the marks should still be in the same position (or at least VERY close to each other). Anybody have any pointers?