HI all
i started blueprinting my engine today and the clearance on the small end of the rod is insane
The gudgeon pin is 10mm and the id of the factory bearing is 10.64mm
outer is even 13.5mm and should be 14mm
so i have over 1mm of free play in the piston in all directions, and the roller thats in it is already starting to show signs of fatigue from being smashed into by the loose piston, and it makes port timing impossible.
I was just wondering if anyone here knows where i can get some 10mm x 14mm x12.5mm ceramic needle cage bearings? I know its overkill, but they weigh half as much and are twice as strong and are rated at approx 75000 rpm and are used in F1 etc and i wanted to go full ceramic anyway. once i measured up the internals
Ive tried google etc and a few european bearing makers. but so far have not had any joy. apart from one way sealed needle bearings. There everywhere,, but not in open cage design?
im more than happy to oversize the rod to make it fit ie: 14.5mm -15mm or 16mm if that helps..
any assistance is most appreciated..
Kindest Regards
Phillip
i started blueprinting my engine today and the clearance on the small end of the rod is insane
The gudgeon pin is 10mm and the id of the factory bearing is 10.64mm
outer is even 13.5mm and should be 14mm
so i have over 1mm of free play in the piston in all directions, and the roller thats in it is already starting to show signs of fatigue from being smashed into by the loose piston, and it makes port timing impossible.
I was just wondering if anyone here knows where i can get some 10mm x 14mm x12.5mm ceramic needle cage bearings? I know its overkill, but they weigh half as much and are twice as strong and are rated at approx 75000 rpm and are used in F1 etc and i wanted to go full ceramic anyway. once i measured up the internals
Ive tried google etc and a few european bearing makers. but so far have not had any joy. apart from one way sealed needle bearings. There everywhere,, but not in open cage design?
im more than happy to oversize the rod to make it fit ie: 14.5mm -15mm or 16mm if that helps..
any assistance is most appreciated..
Kindest Regards
Phillip