Etec crank run out

[Jake jenkins]

So I checked the run out on my 14 etec today it was 0.012 should I be worried ???


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[Bnorth]

So I checked the run out on my 14 etec today it was 0.012 should I be worried ???


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Uh yeah. Isn't spec like 0.0025?

 

[tex78]

12 thou ya, mine had 5 thou at 4700 km at the start of the season, decided to run it so it has new crank ( warranty ) for next year and on

Have 7500 km now, don't want to check it lol

 

[Jake jenkins]

I got around 7500 km on it as well


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[tex78]

Warranty still??

 

[Jake jenkins]

Yelp should be I had 4 year warranty


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[tex78]

Yelp should be I had 4 year warranty


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Good, I only got 3 year, so mine done in November

 

[Caper11]

Are you sure it's 12thou??? How did yah turn the engine over?


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[Jake jenkins]

Are you sure it's 12thou??? How did yah turn the engine over?


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I had it done at a well known sled shop yes

 

[Caper11]

Right on, is your engine acting up?


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[fredw]

So what is the procedure to check run out.. I'm guessing you would pull the plugs and set dial indicator.. Then turn slowly and check run out... Sound right??

 

[pfi572]

Dial indicator set 1/8 inch from stub and plugs pulled .
Turn engine over slowly with ratchet . Us clutch bolt.

 

[Jake jenkins]

Right on, is your engine acting up?


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Engine ran good just had a bit of vibration I didn't like

 

[shockman]

remove front left motor mount bolt, make peice of thick flat steel, bolt to mount, use magnetic base dial indicater, screw clutch bolt in crank (clutch removed) and slowly turn engine over. if over 3-4 thou doo will probably warrenty. at 7000km clutch is probably worn out, have that done too :>))

 

[RGM]

She is on it's death bed. Dealer should warranty it if still any left otherwise get it rebuilt or swapped out or prepare for a tow out or heli ride.

 

[Beels]

I remember people watching crank runout on Polaris 800's like a hawk, but depending on how you ride, it can change every time out. Landing under power, catching hard snow under power, etc. puts major loads through the drivetrain and will effect that measurement. I honestly don't think it's a critical as it's made out to be, IMO.

 

[Merc63]

Bad runout will destroy bearings eventually. Harley's have the same problem, but it's attached to an oil pump not a clutch.