karter74
NAXJA Forum User
- Location
- Longview, TX
Hey guys, you may have noticed I have been posting questions about the 753901 cam and other things on my rebuilt 87. Well, we have been having problems with it so we took the head off to see if I bent a valve. Well, to make a long story short, the cam has eaten the lifters (all of them but cylinder #1 & 2, and the last lifter on cylinder 6) and the shavings/debris from the lifters made its way to the cylinders and scored each one, ruining everything in the bottom end of the engine pretty much. I had trusted a mechanic friend to help me rebuild the engine so he had stepped me through it and he majorly screwed me over. I now realize he is a moron and when he saw this, he was like "I have never seen that before..." even though he has built numerous engines before. He said "I guess thats what happens when you put an aftermarket camshaft in" Anyway, I am extremely pissed and I have lost a lot of money/time as I needed the car to be running by the end of the week, and that is not going to happen. We believe what happened was that the stock pushrods that were used with the Crane Cams 753901 and the recommened lifters and springs were too long, creating too much pressure on the lifter and cam. I advise anyone who is putting a cam in there car to make sure all your clearances are checked out before you try to run the engine. So my next question is, I will end up having to rebuild the engine again, having no choice but to bore it to .060" over. I still want a cam in it, but I am thinking of buying the 750501 instead, as I want more low end. Has anyone successfully put this or the previous cam in their car and what did they do with pushrod lengths and such? Thanks!