The Stovebolt Site Forums The Shop Area Engine Shop Sudden, Severe Knocking

Thanks for the replies but I fear that I may have found the problem, or at least nearly. It turns out that the fact that the motor is missing is due to the fact that there is absolutely no compression on cylinders 5 and 7. Now, seeing as the two cylinders are next to each other, it seems likely that it could be caused by the blowing out of the head gasket. I haven't driven the truck much since the problem began (maybe at most two, 10 mile runs to town and back with a break in between making them 5 mile runs) so I am hoping that I have not driven it enough to warp the heads or burn out anything. It's time to tear the head off and see what can be done, wish me luck. I forgot to mention that after the motor began acting up, I gave it an oil change and there was no foam or anything that would have been a sign of water in the oil.