I bought my first Harley about 6 months ago and I recently learned the Evo engine has a problem with the cam bearings. I don't know if the previous owner replaced the cam and bearings so I was wondering if there is a way to tell. I can't ask because the previous owner is deceased. Are there markings on an aftermarket cam to identify the manufacturer?

 

How many miles on it?

 

The odometer lcd is cracked so I have no idea. could be 5000 could be 50000.

 

What you want is a "Torrington" made cam bearing. Only way to tell is to pull the nose cone, electronic ignition assembly, and cam.

 

Do you have acceleration in 5th gear?
If yes then you probably have an aftermarket cam.

The only way to be sure if the cam bearing has been changed is to open her up and take a look.

 

I planned on opening it up but I was hoping for identification on an aftermarket cam. I would think if the cam was replaced surely a $7 bearing would be too. I know torrington will be stamped on the bearing race but will I be able to read it with out pulling the cam? I do accelerate in 5th, with ease, though there is a dead spot in the mid range rpm area. if I slowly accelerate at about 70-75 mph. it boggs down a bit before kicking in. I have a s&s super e on it.

 

I would think so but there is no guarantee they changed bearings.

You might have to adjust your carb to get rid of the flat spot.

http://www.millerscustomparts.us/san...tuningtips.htm

 

Yes, and it's IMPRESSIVE!

 

The presence of adjustable pushrods could provide a clue that some work may have been performed in the cam chest.

 

I got a gasket yesterday, and plan on opening her up this weekend. I have been doing the debate over the pushrods. How often do you have to readjust the adjustable ones?
And how do you know when it's time to adjust?