Before I went dropping in a new engine, I wanted to figure out what was really wrong with this one. I slapped everything back together, amazingly he supplied me with all the bolts. I didn't even use gaskets or anything, just want to see if I could get it to fire for a minute or so. Once together, it would just crank and crank. I had spark at the coils and at the plugs. I had fuel at the rail, all injector harness were firing, and I could feel the injectors clicking. I pulled the plugs found some dripping wet, some completely dry. I decided to do a compression test and was only getting compression on cylinder #6. I figure it was because the engine was sitting so long that the rings were dry. I added oil to the cylinder and tried again. Still, only compression on cylinder #6. I decided it had to be a timing chain or something similiar. I pulled off the timing cover and everything looks great, hmmm. Even while cranking everything appeared normal. The timing marks were lining up and moving as they are supposed to. However, while cranking it by hand, I noticed that the gear behind the cam gear was not moving when the cam gear was turning. I checked to see if the cam bolt was tight, it fell off in my hand.
It sheared off inside the cam. I've never ever seen this type of failure before, especially at only 113k.
it destroyed the key slot on the cam
I think I might get lucky and only have to put in a used cam and button up everything. Although it might be more labor than just dropping in a new engine, I'll save the cost of a new engine.
