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Building and Flying Related Boards › miniMax, Hi-Max, and AirBike General Discussions

An Attempt R277 Upgrade.

4 posts

PhilFebruary 20, 2020, 12:34am

Hi Guys,
This R277 has not yet break-in. I'm not sure if it has cageless bearing in photo shown.
I was thinking this has caged bearing. Can you guys vertify what inside? I was expecting circlip on this side. But it looked like a spring ring?
Need your assistance. Please chime in.
Thanks,
Phil

PhilFebruary 20, 2020, 8:43am

Done.

BlueMaxFebruary 21, 2020, 4:34pm

Phil,

The Stock piston pin bearings in the 277 are caged but I believe most people upgrade to cageless at overhaul.

Chris

When in doubt just use full throttle.... it might not help but it will end the suspense.

PhilFebruary 22, 2020, 11:53am

Quoted from BlueMax Phil,

The Stock piston pin bearings in the 277 are caged but I believe most people upgrade to cageless at overhaul.

Chris

Chris,

I remember reading somewhere regarding caged bearing issue that failure took placed at only 50 hrs.
So I decided to do update before breaking-in this includes changing carb plastic cup with o-ring.

Phil