Your Thoughts on Engine Wear? Good pics.

Can only feel a very small ridge on the cam, a little larger on the journal. I'm thinking it must have been something stuck in the journal the way it grooved. I can't see how it would continue to be a problem if it was clean when put back in. Maybe smooth out the journal just a hair without changing tolerance.

Which cap picture is the one from the problem journal? None of them look too bad, at least not in the pics. But that could just be the angle of the pics. Looks like all of the scoring was on the head and not on the cap.

Are the pics of the cam both of the same end or opposite ends?

Where is the oil feed path for the scored journal? Is it possible it got plugged?

DoubleDub wrote:

wireman wrote: Is there cam bearings that go in that head or does it just ride on the casting?
That journal scares me

Looks like an insert in the photo, but hard to tell.

Pretty sure the twins use no inserts. The 750 twin has no inserts at all.

gd4now wrote: Which cap picture is the one from the problem journal? None of them look too bad, at least not in the pics. But that could just be the angle of the pics. Looks like all of the scoring was on the head and not on the cap.

Are the pics of the cam both of the same end or opposite ends?

the first picture is the cap for the scored journal. All caps look good. and that is opposite ends on the cam shaft.

I saw no signs of anything that could scratch anything, but this easily could have been an old scar from a previous repair because the head had been resealed before. high temp gasket maker inside the edges of the head.

And environmental free "GREEN" as well... :ohmy: :laugh:

Jay98 wrote: I saw no signs of anything that could scratch anything, but this easily could have been an old scar from a previous repair because the head had been resealed before. high temp gasket maker inside the edges of the head.

Perhaps some excess sealer came loose and clogged an oil passage.

Good Fortune!

You can see some of the sealant on one of the clamps. Where are the oil passages? holes in the cam?

oil holes on cam are in yellow make sure there open

something is funky here dont look right like it got hot

P21 wrote:

Attachment IMG_6035.jpg not found

something is funky here dont look right like it got hot

what would cause that?