Crank Runout

[dyrengd]

How do I check for crank runout, or is this something I need to take to the dealer to have done? What is considered bad? I bought the sled with 100 Miles, balanced the clutch and have always heat soaked during warm up. The sled now had 700 mile. Any help would be appreaciated.

 

[06 RMK 900]

I don't have the thread saved but if you do a search in the 900 forum you will find what your looking for there are a few threads on this.

 

[mountainhorse]

...

 

[winter brew]

What are guys typically seeing for PTO runout?

 

[94fordguy]

...

I always thought that .004" was considered Max tolerance... has that changed?

.0015 seems like an awefully small tolerance to me

 

[mountainhorse]

.004" is a bad crank, bearings or cases..

That would be a paint shaker.

 

[mountainhorse]

Acceptable crankshaft runout
(in crank fixture) is
Liberty Engines .000” -- .00015” (0--.04mm)
FUJI Engines .000” -- .0024” (0--.07mm)

...

 

[sled_guy]

I think that should be .0015... too many 0s?

It's unlikely you'll ever see a Polaris crank with .006"... they usually brake before that.

sled_guy