Installing camshaft bearings


mdvs54731

10+ Year Member

Joined
Mar 1, 2008
Messages
4
Points
3,001
Vehicle Year
1996
Transmission
Automatic
Instead of the standard aluminum bearings I purchased "Sealed Power" steel bearings with the Outer Diameter oil ring/groove.

I had read somewhere that these rings are not installed with the oil hole lined up as you would normally do. The groove feeds the oil around to the hole in the bearing.

The article had said that this type of bearing lets you put the oil hole at the
3 o'clock position so that the fresh oil gets applied to the camshaft where the greatest pressure occurs (best protection from wear).

Does anyone know if this is true?
If so, when they say 3 o'clock position, do they mean viewing the engine from the front/radiator (would place the hole on the driver side of engine) or from the rear/transmission (would place the hole on the passenger side of the engine) ?
 
checked some more information

Assuming the view is from the front (3 o'clock on the drivers side)
I think the recommendation for the 3 o'clock position was for a camshaft that was pushing against lifters (up) for an older Buick. They talked about the pressure down being between 4 to 7 o'clock.
With this 2.3L engine the OHC pushes down on the rollers of the rocker arms.
This makes me think that the max pressure on the bearing would be from 10 o'clock to 1 o'clock (up against the bearings)
 
A possible issue with Sealed Power bearings

I'm not sure that I can use these bearings even though RockAuto and several other sites said they are direct replacement.
The middle two towers/supports that the bearings goe into on the head have the oil hole on the bottom and another hole on top. The top hole goes through the tower to the top. It is not a oil feed. If I use these bearings with the outer channel the oil is going to go around the bearing and squirt out the top of the towers/supports preventing the proper pressure/lube for the cam shaft.
The only way I might be able to use them is if I put some high temp silicone sealant into the top holes to prevent the oil from coming out. I'm not sure how reliable that would be. Any other ideas on how to plug them? I think I'm going to call Rock Auto and send these back.

Help!!!!
 
Installing camshaft bearings


I know this an old thread but i am trying to identify this part I found in my 3.0 vulcan oil pan,,, does the cam bearing you spoke of resemble this? I mmean would it resemble this if it was mangled?

thanks
 
Last edited:
Thats what it looks like,a 3.0 cam bearing from the looks of it where it goes together
 

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