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A Main Hobbies . Boca Bearings . Modefo's RC Helicopters

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Engines Plugs Mufflers Fuel > Bearing Play
 
 
F3CWNB
Senior Heliman
Location: Napier, New Zealand

Just pulled the Piston & Liner out of my OS70.

How much play (or clearance) should be in the rear bearing race?

It currently has a small amount, way too hard to measure tonight. I do not think it is excessive, but I thought I would ask.

'Life' is Looking Up!!!
10-16-2008 08:27 AM
 
 
WATCH-THIS!
Heliman
Location: Michigan

When the motor is cold you will see play. The oil is the bearing. When the motor heats up the bearing will expand and take up some of that play. If the bearing is showing wear ,you will feel little notches when you spin it by hand.

snow blowing inverted
10-17-2008 12:55 PM
 
 
F3CWNB
Senior Heliman
Location: Napier, New Zealand

Cool, Thanks

'Life' is Looking Up!!!
10-17-2008 08:50 PM
 
 
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Engines Plugs Mufflers Fuel > Bearing Play
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