Snapped crankshaft - Off-Road Forums & Discussion Groups
Snowmobile Lounge All general discussions relating to Snowmobiles

 
LinkBack Thread Tools Display Modes
post #1 of (permalink) Old 01-26-2000, 01:31 PM
**DONOTDELETE**
Guest
 
Posts: n/a
Snapped crankshaft

Hey all. I have a 97 Polaris Ultra SPX SE and I recently broke my crank shaft. It snapped off about 1/2 inch into the clutch. Any ideas on why this has happened or have any of you heard of this before? One shop around me said it was likely a factory default, which does me no good because I just bought the darn thing. Anyway, what are my options here? I've gotten preliminary estimates from 2 different shops at around $1500, which I am having a hard time justifying spending. One shop even said that finding a new engine would be an option (c'mon?!?!). Can it be rebuilt? Welded? Thanks in advance!

Joe

Sponsored Links
Advertisement
 
post #2 of (permalink) Old 01-27-2000, 10:11 PM
**DONOTDELETE**
Guest
 
Posts: n/a
Re: Snapped crankshaft

You did not mention (miles?) Sound's like defect or some kind of harmonic distortion. For 1500 buck's, do seal's, ring's, hone, maybe even some performance goodies while it's torn down.(reeds) Should be able to rebuild unless cast block had also received damage. A tear down would definitly reveal
all. Save some buck's. Buy a shop manual and do the work yourself.

post #3 of (permalink) Old 01-28-2000, 10:21 AM
**DONOTDELETE**
Guest
 
Posts: n/a
Re: Snapped crankshaft

It's got about 4500 miles. I talked to a guy this week who said he would rebuild it for about $400 (he has a used rod), provided nothing else is messed up. I'm going to pull the motor this weekend and see what's up. I've also heard that this could be caused by having studs (192 in my case), going full blast (i.e. on a lake) and completely letting off the gas, applying a sort of reverse tourque because the track grabs so much. The guy I talked to said that everytime he has seen this happen (which isn't many), the sleds always have studded tracks and the people had been riding on the lakes. We'll see. Hopefully it won't be too much. The way this Wisconsin winter (if you can call it that) has been, I'm having a hard time NOT looking forward to the golf season. Thanks for the reply!

Sponsored Links
Advertisement
 
post #4 of (permalink) Old 01-29-2000, 09:42 PM
**DONOTDELETE**
Guest
 
Posts: n/a
Re: Snapped crankshaft

Good Luck!

DAT

post #5 of (permalink) Old 03-09-2000, 10:29 AM
Riley
Guest
 
Posts: n/a
Re: Snapped crankshaft

It is more then likely caused by the clutch. If the clutch is wore out it can cause crank damage. It may need to be rebuilt. For $1500.00 you should be able to find a different motor to just drop in Good luck Riley

post #6 of (permalink) Old 03-09-2000, 10:08 PM
**DONOTDELETE**
Guest
 
Posts: n/a
Re: Snapped crankshaft

Don't even think of welding a broken crankshaft. Rebuilding a crank means resurfacing the journals only. The integrity of the metal CANNOT be restored. Use your broken shaft as a conversation piece only!

Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Off-Road Forums & Discussion Groups forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome