Thread: cam installation help anybody on tonight?

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Cam turns very tight when installed. No valve train components installed yet. Need to use a shop rag to turn the cam? How tight should this be?

Wade

[QUOTE]Originally posted by BlackRat
[B]Cam turns very tight when installed. No valve train components installed ye

It is a a new engine. The machine shop installed the cam bearings. I have it on the stand nom. The cam slid into the first 3 bearings without a problem. the fourth just before the back bearing is where it got tight. I did go ahead and install the timing chain and the motor spends without in binding. It is tight but with all the pistons installed I would think it would be tight. I have installed a cam before but it has been many years so I don't remember the characteristics. Should I be worried? What would you suggest?

[QUOTE]Originally posted by BlackRat
[B]Cam turns very tight when installed. No valve train components installed ye

I'll try postin' again, somethin' iz amiss ..

I worked in an engine remanufacturing plant many years ago. When we had a cam bearing problem, we would push it in 1 bearing at a time til we found the bearing with the high spot. Then pull the cam out and sand the shinny high spot on the bearing with emeery cloth til the cam turned free. Sounded crude back then and still does today as I explain the proceedure, but that's how they had us fixing the problem. They warranteed the engine, so I guess it worked.

Great, thanks for the info. I think to be safe I am going to pull the cam back out tomorrow and inspect the bearing. At least I know which one it is.

I would not use abrasive on the bearing. I always look for the shiny spot on the bearing and trim it with a bearing knife.(anything sharp,that will reach)