PDA

View Full Version : YS 91 bearings Help Please


X
11-07-2005, 03:18 PM
After a crashed I left my YS 91 on the shelf for 4 weeks without burning the fuel that left inside the motor. Do you think my bearing is (rusting)bad now?

Thanks,
x

rob_jones
11-07-2005, 03:32 PM
Depends on a lot of factors: Type of fuel, humidity, etc...

The only way to know for sure is to remove the backplate and look. If there is ever a question about one of my engines, I'll remove the crankshaft and spin the bearing with my fingertip. If it's not silky smooth, it gets replaced.

X
11-07-2005, 03:57 PM
Thank you,
x

RC-Bearings
11-09-2005, 01:57 PM
You have to be careful evaluating bearings like that. Certain kinds of ribbon retainers will move around a lot while spinning slow and fool you into thinking that the bearing is bad when it is really OK.