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R42 Pistons

Posted: Fri Jun 05, 2020 7:54 am
by deyoung2837
Hello,

My 1927 R42 is coming along.
Does anyone have a good source for pistons and rings?

Take care,

Lee


Re: R42 Pistons

Posted: Sun Jun 28, 2020 11:53 am
by Darryl.Richman
That's beautiful, Lee!

I've had pistons made for my R52, that I've ridden 3 times in the Cannonball. I got them from JE Pistons:
https://www.jepistons.com

I had to buy them in a set of 4, so I have a couple spares.

Re: R42 Pistons

Posted: Wed Jul 01, 2020 5:34 pm
by deyoung2837
Hello Darryl,

Good to here from you.
What piston clearance did you end up with?

You in the Cannonball this year?

Take care,

Lee

Re: R42 Pistons

Posted: Fri Jul 03, 2020 9:44 pm
by Darryl.Richman
My machinist ordered them and matched a new bore to them. I actually have a second set of cylinders bored exactly the same, so I can swap them with new pistons if I ever need to. The bore is well over the original 63mm, but I've put about 10k miles on them and had no troubles.

I was signed up to go this fall, but I've decided not to after all. At the current rate, there's a significant chance that one or more of the states we were scheduled to go through will have a closure.
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