How do these Cam Bearings look?

[Chrisk]

Pulled my cam out. Do the bearings look ok?

Thanks,
Chris

 

[earlbrown]

The only way to know for sure is to stick a bore gauge in there and check the clearances.

I notice your front cam bearing is installed "correctly". If you change them out re-orient the bearing to inject the oil at 5:00 when viewed from the front.

 

[Chrisk]

Thanks Earl.

 

[Buick Mark]

Looks like normal wear to me.

 

[Chrisk]

This is on one of the lobes. What would cause this?

 

[earlbrown]

Is that a flat spot? When you look at it real close does it look like a blunt impact caused it?

 

[turbodave231]

Is #2 cylinder sleeved?

 

[Chrisk]

No it's not sleeved.
Here are a few better pictures.

 

[750H.P.V6]

Is the cam making contact with the rod bolt? BTW, are you running a double roller timing chain? If so why do you have the stock tensioner on there?

Neal

 

[Chrisk]

Is the cam making contact with the rod bolt? BTW, are you running a double roller timing chain? If so why do you have the stock tensioner on there?

Neal

I think your right. I noticed one rod bolt on #2 ground down a little. I had this motor built few years ago. I don't know about the tensioner.
Since its a double roller what is supposed to be used?

Thanks,
Chris

 

[Paul Lohr]

A tensioner should not be used with a double roller chain. The tensioner should be used with the OEM style chain.

If you want to run a tensioner, TA Performance has a stout timing kit that uses a tensioner. It's not a bad idea to run the tensioner although many don't have been ok this way. You might want to do some searches and read about this.

Paul Lohr

 

[Chuck Leeper]

Some indications that dirt is being introduced to the oiling system........Could be done by the material knocked off that lobe. What does the oil filter look like?