Thread: Flywheel Bolt failures
04-01-2012, 05:47 AM #1
Flywheel Bolt failures
Yesterday my flywheel must have been hungry because it ate my stator!
Ski instantly died then could hear the starter but nothing turning over. Was sure at that point that I'd expect to see a timing chain or flywheel bolt failure.
got home pulled the valve cover, was very happy to see the chain still on. Pulled the PTO and no surprise all bolts sheered off.
engine build date is 01/2006.
It's well known that 04-05 had issues with these bolts and upgraded ones were installed on 06+. Does anyone know the exact date Rotax started using the upgraded bolts? Is there anyway to tell which bolts they were?
Is this common on 06+ skis? How many out there have had this issue?
Thinking I'll be installing some 10mm ARP purpose made flywheel bolts.
04-01-2012, 06:26 AM #2
- Join Date
- May 2011
What was the rpm you were running at the time?
04-01-2012, 06:31 AM #3
04-01-2012, 06:50 AM #4
Make dang sure you clean out everything. Cases and all. As that crap flows everywhere in a failure. I had two skis in that did this and they both ate rod bearings after the dealer did a crapy job on fixing them. Split cases and flush every port. And inspect/replace oil pumpsand timming chain.
04-01-2012, 07:01 AM #5
- Join Date
- May 2005
Those look like the updated - original were stainless - updated are coated with a flange head. I don't know why a grade 10 metric bolt wouldn't work - Clean it all out +1
04-01-2012, 07:25 AM #6
04-01-2012, 07:43 AM #7
That sucks!! I bet copper winding went everywhere!!
04-01-2012, 08:01 AM #8
Dont take that the wrong way we all know it needs to be stripped down and flushed.
04-01-2012, 08:35 AM #9
damn just when easter is around the corner hope u get it fixed intime....im heading out to dans racing tomorrow ill ask him for a stater
04-01-2012, 09:27 AM #10
Damn brother, what a bad way to start out the season! It would be nice to know at what point in 06 did BRP find the problem and switch bolts. I have an 06 and would really like to know! I hope you get it sorted out soon....
Users Browsing this Thread
There are currently 1 users browsing this thread. (0 members and 1 guests)
By bangon61 in forum Kawasaki Open DiscussionReplies: 2Last Post: 05-01-2011, 12:28 PM
By tweeder in forum Polaris Open DiscussionReplies: 27Last Post: 08-20-2010, 04:38 PM
By redfro in forum Polaris Open DiscussionReplies: 2Last Post: 07-02-2010, 04:11 PM
By hyoctane23 in forum Polaris Open DiscussionReplies: 3Last Post: 09-30-2009, 04:48 PM
By sr71bb in forum 4-Tec PerformanceReplies: 5Last Post: 06-22-2007, 02:28 PM