Thread: Cam won't just slip out.
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11-14-2011 07:48 PM #1
Cam won't just slip out.
I've been tearing down the 351 roller cam motor I bought for my Mustang and tonight when I tried to remove the cam it wouldn't slip out like every other cam I have ever removed in my life. In fact, I had to put a pair of vice grips on the snout and it was hard to turn.
I have everything removed, lifters, distributor, the plate that keeps the cam in, so I know it isn't anything like that, and I have done enough cams to know that part isn't holding it. What I was able to do was make a quick puller that utilizes the 3/8 bolt that goes into the center of the cam and by tightening it down I got it to move out of the first set of bearings, but when the journals started to enter the bearings for the next portion of the move, it stopped dead.
I am not worried about getting it out, I will buy some 3/8 all thread tomorrow and fashion a longer puller to bring it out the rest of the way, but I would like to know how the bearings got so tight on the journals. Have any of you run into this before?
The rest of the engine looks machinable, it is a Ford reman engine and is already bored 40 over, but the machine shop says 60 shouldn't be a problem, especially since it will be a mild engine. The mains and rod bearings and all the crank journals look good, so I don't think the tight cam created any problems that way. I will be running a different cam with new bearings, so that part doesn't worry me.
Oh, as I was pulling the cam with my puller a very thin ring of the number 4 cam bearing came out with the cam, like the bearing was too small and I had pulled the edge of the bearing off. Any ideas?
Thanks guys.
Don
Ditto on the model kits! My best were lost when the Hobby Shop burned under suspicious circumstances....
How did you get hooked on cars?