R12 piston clearance.

C.K · Post by **C.K** » Thu Apr 26, 2018 7:06 am

Hello
What is the recommended clearance between piston and cylinder on R12 motor?

Ian R11 · Post by **Ian R11** » Mon Apr 30, 2018 2:17 pm

The info I have says .06 to .08 mm. The bore size is usually to size (eg 78mm) and the piston will be .06mm less to give the correct clearance. My original piston is 77.94mm to give the .06mm clearance.

C.K · Post by **C.K** » Mon Apr 30, 2018 5:46 pm

Thank you Ian
That's what I thought.
I will go on 0.08 just to be on a safe side, we have hot summer here.

R12 piston clearance.

R12 piston clearance.

The info I have says .06 to

Thank you Ian That's what I