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Graham Ham
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Piston clearance 700/750 twins?
#815648 07/09/20 5:23 pm
Joined: Apr 2007
Posts: 564
Bigtwin Offline OP
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Posts: 564
Hi!
Just checking in to see what the "favored" piston clearance is best for a fresh re-bore. Any difference between the 700 vs 750 cylinders?
Based on the collective experiences on this forum, just how tight is workable these days? There should be some variance between cast vs forged pistons, etc. Any experience with piston coatings to share?

REgards!

Bigtwin

Last edited by Bigtwin; 07/09/20 5:26 pm.
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Re: Piston clearance 700/750 twins?
Bigtwin #815777 07/10/20 2:41 pm
Joined: Feb 2014
Posts: 145
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The piston manufacturer should have a recommendation for you as to bore size.
I think 700 or 750 would be the same for clearance since they are manufactured the same.
I've been using Tech Line PowerKote CBC1, which is a ceramic coating with good results. I apply it to the piston crown, combustion chamber, and exhaust port, and I notice a definite difference.
No recommendation for the skirt coatings though, but I'm interested in hearing for any recommendations for that.
Tom Oil


Moderated by  royaloilfield 

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