Big cam camshaft thrust washer

I'm having a problem with no clearance on the front camshaft support that goes into the front cover. I'm wondering if the shop that did the engine forgot to put the thrust washer in. It is very difficult to see behind the gear but from what I can see with my light and my mirror it doesn't look like it's there.

Does anyone know the approximate thickness of the camshaft thrust washer for a big cam cummins?

 

@Working2party

Thank you. That is exactly what I needed to know.

The problem that I'm having is that when I put the bearing support into the front cover it actually hits the front cover instead of hitting the camshaft. So basically what I'm saying is that it's like the camshaft gear is too close to the block.

My measurements could be slightly off maybe by a few thousandths, but my figure was that if the camshaft gear moved .050 toward the cover the support would touch the camshaft and touch the front cover with no space.

So 1/16 of an inch equals .0625. So subtract .050 and there is roughly twelve or thirteen thousandths to have a gap now to measure and shim. Roughly. That sounds like that would be correct.

Right now I have the oil pump out and the front cover off and I can see behind the gear not perfectly but I can see behind it and I don't think there is any thrust washer there.

I hope they did not miss anything else on that engine...

 

I did slide it out as far as I could get it and I don't see a thrust washer behind there. I'm going to check again tomorrow, but I didn't see anything behind there.

I'm going to start another Thread about removing the camshaft, if you're available let me know if you have any ideas @Working2party .