Sarg

iTrader: (6)

After getting new cam bearings pressed into my block I went to install my new cam tonight and the very front bearing was tight as a son of a gun. I decided to check the back side of the motor and the cam slid in very easy to all the cam bearings until it reached the one up front and again would not budge. What would cause this to happen? Is it just a bad bearing or is it possible that when the machine shop installed the bearing it got compressed somehow?

Thanks for any help. Very frustrated as I was supposed to have the motor going in the car this weekend!

bww3588

iTrader: (49)

They could be out of order. All 5 cam bearings are not the same.

Sarg

iTrader: (6)

They are all the same inner diameter though I thought.

bww3588

iTrader: (49)

Even so, if the bores in the block are different, it's going to compress the bearing more, tightening up your clearances.

Sarg

iTrader: (6)

Gotcha, but wouldn't the larger one just slide into the smaller one like parking your bicycle in an airplane hangar? I remember my first personal attempt at this before I screwed up a bearing and decided to take it to the machine shop and you could slide the smaller ones through the larger ones without even touching.

bww3588

iTrader: (49)

Hmm. Are you sure you have the correct bearings? There were at least 3 different revisions for cam bearings for these engines.

RonSSNova

iTrader: (3)

If you have a new cam, try the old one and see if it fits, it could be the cam.

If the old cam has the same issue, take the block and the cam back to the machine shop and have them get it right. They should have slid a cam in to check when they finished the work. That's pretty basic practice.

Ron

Sarg

iTrader: (6)

Well the front and rear bearings are the same. the cam will go in the rear, but not the front. The cam will slide past all the bearings except the front. Is it possible the bearing is canted slightly in the hole compressing it?

2005 l33 with hp23 bearings if I remember right. I had the guys at summit cross reference it to the oem number for that motor.

Old Geezer

iTrader: (3)

Ft brg driven in without the alignment bar. Brg is crooked???

Sarg

iTrader: (6)

Possible. Would that make it compress the bearing and make it smaller?