INMYBLOOD

IS the thrust washer necessary? Or can you run the timing gear on the block with just the .003-.005 clearance I have with the cam button? I have the ability to take the .030 off the gear as per instructions, I just wonder if it's needed?

Thanks

mr.beachcomber

Yes. All roller cams require some type of block retention otherwise the normal rotation of the cam would force it out of the block. Skip this and you'll have a short break-in period for your new engine with the emphasis on break.

INMYBLOOD

I installed the cam button to stop forward walk. I would like to know if the washer behind the timing gear between the face of the block is necessary? The instructions say to take the thickness of the thrust washer .030 off the back of the timing gear or the front of the block. I most likely will put the gear up and skim the .030 off of it and install this washer. I just wanted to know if it is really necessary.

Thanks

Gordon

mr.beachcomber

If the cam maker recommends installing the thrust washer along with the cam button to control the forward thrust of the roller cam, I'd do it. If the cam maker recommends either the thrust washer or the cam button to control the roller cam, I'd do the cam button along with an adjustable stop on the water pump to control the roller cam motion. Hope that helps answer your question. Good luck!