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General Category => General Discussion => Topic started by: bigbikerrick on January 22, 2016, 01:56:35 PM

Title: Lifter pitting question
Post by: bigbikerrick on January 22, 2016, 01:56:35 PM

Hi Folks, I am  in the process of replacing the cylinder base gaskets on my tonti lemans,waiting for the new gaskets to arrive, so I pulled out the lifters to take a look, finding both exhaust valve lifters to be slightly pitted in the center, an area about the diameter of a dime. They are available new  for $35-$40. my question is, are they okay to re use like this, or should the be replaced? Can I take them to a local machinist to grind them smooth, or is this not advisable?  I looked at the cam lobes, and they look real good. The bike has 30K miles on the clock.
Thanks,
Rick.

Title: Re: Lifter pitting question
Post by: acogoff on January 22, 2016, 02:06:03 PM

     Buy new ones and scrutinize the other two real close as long as it is apart. But then that is just me. Most were ground to a 1 meter convex radius as far as I know.

Title: Re: Lifter pitting question
Post by: Antietam Classic Cycle on January 22, 2016, 03:20:41 PM

Delta Camshaft in Tacoma, WA can reface the lifters to the proper radius for about $3 ea. Fast turnaround too.

Title: Re: Lifter pitting question
Post by: Chuck in Indiana on January 22, 2016, 04:34:51 PM

Dang! THREE DOLLARS??  :smiley: <snapping suspenders>