TeddyG
Hero member
- Location
- Portland Oregon
As above, Mondial pistons and rings in good shape, thanks
750 SF2 Mondial pistons
- Thread starter TeddyG
- Start date
Why specifically Mondial's?
Paul
piranha-bro2
Hero member
- Location
- Melbourne
What they all said. Why Mondials? And what more size, whatever you use.
Absolutely nothing wrong with Ross Racing pistons.
Absolutely nothing wrong with Ross Racing pistons.
TeddyG
Hero member
- Location
- Portland Oregon
Not to beat a dead horse, but while trying to determine the Ross piston wear, attached are the Ross pistons on the right that show extreme wear on the intake sides after @ 3000 miles, and the original Mondials that came w the bike at 16,000 miles. I installed .5 over Ross pistons after the worn cylinders were re-bored. I notice that the Mondials are taller, have a different skirt profile, and smaller valve depressions on the intake side. Forgive my piston ignorance, but could these differences be responsible for the wear? Would a shorter piston "rock" more on the upswing, and would a longer piston be more stable? I'm trying to decide which to use and realize Mondials are no longer available. I can't re-use the Mondials since the top ring grooves are worn past the 0.10 mm limit.
Thank you
Thank you
