R42 Pistons

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deyoung2837
Posts: 41
Joined: Fri Oct 27, 2006 3:00 am

R42 Pistons

Post by deyoung2837 »

Hello,

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

Take care,

Lee

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Darryl.Richman
Posts: 2084
Joined: Fri Oct 27, 2006 3:00 am

Re: R42 Pistons

Post 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.
--Darryl Richman

deyoung2837
Posts: 41
Joined: Fri Oct 27, 2006 3:00 am

Re: R42 Pistons

Post 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

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Darryl.Richman
Posts: 2084
Joined: Fri Oct 27, 2006 3:00 am

Re: R42 Pistons

Post 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.
order.jpg
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pistons.jpg
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--Darryl Richman

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