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-   -   2001 XC 800 crankbearings question. (http://www.hardcoresledder.com/forums/312-xc/422754-2001-xc-800-crankbearings-question.html)

sport6 09-07-2009 07:36 PM

Well I own a 2001 XC800sp and wondering how many miles people have put on the machine before the crank bearings go bad. My sled has about 3300 miles on it.


XCR1250 09-07-2009 07:37 PM

May last forever.

alsled 09-07-2009 09:21 PM

Quote:

Well I own a 2001 XC800sp and wondering how many miles people have put on the machine before the crank bearings go bad. My sled has about 3300 miles on it.[/b]

Between 500 miles and 8000 miles. Its like death, you never know when. :mog:

polarisrules12008 09-07-2009 10:34 PM

The life of my crank was 7800 miles it had a bad rattle before it seized. I just purchase the sled and couldnt find the noise until it was to late. My opinion is you are fine but have you change your exhaust valves to stainless steel the originals are junk a nice way to say...

michahicks 09-07-2009 10:59 PM

Quote:

May last forever.[/b]
Or it may not.

sport6, check this out. Everything you want to know (and a lot more) about the 800 crank failure "syndrome".


http://www.hardcoresledder.com/forums/inde...howtopic=264414

extradriver 09-07-2009 11:01 PM

1 Attachment(s)
I had Dan at Indy Specialties do the crank case and bearing upgrade to my 800 this past winter after a stock exhaust valve failed and slid into the cylinder and was chewed up.

The engine had 1800 miles on it when the valve failed.

As for the bearings, like everyone else has said they could last 500 or 5000 or more miles with no problems. There was nothing wrong with the stock bearings on my crank I did the upgrade since the engine was a part.


sport6 09-08-2009 12:11 AM

The motor that is in it is a Non exhaust valve motor. In 2002 Polaris put an exhaust valve on the 800's. But I have heard of bearing failures on the larger twins some what common, due to the bearing not being wide enough.

XCR1250 09-08-2009 12:15 AM

Quote:

Or it may not.

sport6, check this out. Everything you want to know (and a lot more) about the 800 crank failure "syndrome".
http://www.hardcoresledder.com/forums/inde...howtopic=264414[/b]
That is a fact, I've seen several take a dump, also seen a few which have never been touched and are still running since 2002 without any issues,,, I re-did my own 800 twin a few years ago just to be safe, had Ross do the wide bearing and spacer, sold it to a friend and it's been fine.. knock on wood..

mark32786 09-09-2009 07:37 PM

got 5585 out of mine, since its in the process of getting rebuilt im going with the wide bearing set up from SLP. it went out when the mag side cyl went or thats when i noticed it. i do run v-force,twin pipes and some others though. 2000 plus miles of trouble free ness up untill that point. if you have or can get a hold of a dial indiacator(? spelling) check your runout.

dragon sp 800 09-09-2009 08:37 PM

from what i hear about the 800s i was expecting anyday to blow a crank in my 01 xc ,especial because i ran twin pipes & lots of bottles of nos .well this sled was bullet proof for me no issues until 12000 miles & then i heard a diff sound in engine ,took her down to find the rod bearning was finally going ,mainbearnings & pistons still appeared great ,had the crank rebuild & replaced pistons & now the sled has 16000 miles on it & still running like day one.man i whish the dragon treats me like that one ,although i dont have the faith in the new iron like i had with my old 800 xc. liked thesse sleds that much i bought a 04 800 pro x as a second sled since i sold the 01 to a friend.


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