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Hey all! Would like all the snowesters on opinion on this. Have an 03 Escape. Blew the crank this weekend, had to be towed out. First time for me. It really sucked. Any who, I was curious what people actually thought on rebuilding these sleds. I live in B.C., what I am finding my sled would be worth about $4000. To rebuild the bottom end, I am thinking it will be $2000-$2500. Would I be better off just to sell it as a parts sled and hope for the best and get something different, or should I rebuild and keep it. I have pretty much everything cause a problem at one time or another, top end 2 years go, finally got the jetting dialed, messed around with clutching this year, thanks to Ultrarider, that seems to be finally working awesome. On Saturday, sled ran the best it has ever since I bought it 3 years ago, and blew the crank. Go figure! I am starting to think someone is telling me something!

Thanks in advance for all you help.
 
Someone is telling u to build a hotrod :face-icon-small-coo
If u are handy with tools u can download the polaris shop manual, and from what I have been told by techs it's actually really easy once the engine is out. Also the crank is about $4-500 usd, and u can find running motors that have been yanked for about the same money if you trust the seller thats a good way to go. (Just blew mine a couple weeks ago, I know where ur at man)
My friend quoted me about a grand to build a solid,reliable, high-compression motor that can run pumpgas or race-gas
 
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Just put my 04 800 Escape back togeth on Friday.

Crank rebuild with wide bearing- 340.00
piston kit(SPI) ebay- 130.00
gasket kit(Winderosa) ebay- 73.00
So total around 550.00 USD. I'd say keep it and rebuild it cause it's alot more fun to ride somthing that's paid for.
 
Just put my 04 800 Escape back togeth on Friday.

Crank rebuild with wide bearing- 340.00
piston kit(SPI) ebay- 130.00
gasket kit(Winderosa) ebay- 73.00
So total around 550.00 USD. I'd say keep it and rebuild it cause it's alot more fun to ride somthing that's paid for.


How much did it cost for machining the case for the wide bearing? Where did you get the crank from?
 
The guy who rebuilt my crank machined the case to accept the wide bearing, he also modified the seal to fit the wider bearing. His business is Cranshaft Services located in Baxter MN, 320-267-8801. Maybe give him a call and see if he could do anything for you, he said he was out of the wide bearings but I think they come from Polaris anyhow so he should be able to get one.



Justin
 
I might be way in left feild with this one but have u ever thought about doing a high performance Motor?? Like a union bay 1150?? I have a buddy who just sold one used for 3 grand.
 
Ok heres the deal there are a bunch of people rebuilding cranks these days how do you pick which one knows what there doing? many think think they do. Theres almost a 100 percent chance that your case is bad as well.if you put a good or mediocer crank in a bad case it will not last long. Do your home work on this or it will bite you again.The machine work to the case is nothing and does not need done with machine tools. the crankshaft issue well there are all kinds of pto ends for the polaris 800 ON THE MARKET some are cast some are billet prices from 89 dollars to 350 for brand new ends. So try to know what your getting If thats even possible.
 
Sell the junk motor for parts and then look for a used xcr 800 motor and do the edge/xcr conversion. Why put another junk 800 twin in when you can go with a triple and actually have a reliable motor along with more power. Youll lose nothing in the form of throttle response or h.p. at any throttle position and youll be able to ride instead of working on a ill designed junk motor. I may be a little biased as I did this conversion last year but I can assure you as consumers weve been getting ripped off on the twins since they came out. I have a 99 xcr 800 motor thats a better motor hands down then the 800 motors Polaris are building in 2010. Cant even be argued.
 
the crankshaft issue well there are all kinds of pto ends for the polaris 800 ON THE MARKET some are cast some are billet prices from 89 dollars to 350 for brand new ends. So try to know what your getting If thats even possible.[/QUOTE said:
My Crank is not broken on the pto, it is actually broken at the con rod journal on the pto side. Does anyone know if this is repairable?
 
Best place in Canada is Adrian Bernard, they are far from you but have quick delivery. Your best off to fix it, if your mechanicly inclined you can do it for fairly cheap. Best way out is to purchase a new crank with the upgraded bearing and send them your old one for core. You can get your case machined anywhere. Don't forget to drill out the holes for better oiling. If you take it to a good machinist he can tunnel port the case as well. Then engine is still a good engine, don't get detoured. Rebuild it and get back out their. Otherwise send it to Indy Dan, he'll fix you up but will cost yah just about as much as you can get a UBR

http://www.cvtech-aab.com/contenu/services_largeInventaire_ang.cfm
 
Yes the rod pin is usually what breaks on these and more often than not when you pull the crank the bearings are loose on the pto end not always but quite often, which makes it junk. some of what i have seen is people putting locktite on that surface and reinstralling the bearings. this is just food for thought. There are some pto ends coming from Tiwan that are coming out of canada at a very cheap cost (under 100)and being sold in the usa for 250 and more. are they bad ?? Or good ?? who knows.Do what you need to i'm just trying to give you a little info, but there is a lot of junk going around out there, so do you home work.And to answer your question about the rod pin yes it is repairable depending on the damage.
 
Thanks all for the the advice. The actual, tearing down and repairing it doesn't bother me it was the cost of getting a crank. Looked into Adrian Bernard like E-Zmoke suggested. They have cranks for C$500, might not be so bad. Just have to look into the condition of the case and go from there.
 
There a very informative write up on hard core sledder in the xc section on preparing the xc crank case for rebuild that you should read talks about bearinfg crush and the whole works,its written by a guy names alsled.
 
You can get your case machined anywhere. Don't forget to drill out the holes for better oiling. If you take it to a good machinist he can tunnel port the case as well.[/url]

Got a hold of Andre Bernard at CVTECH. I can get a crankshaft for $500. I guess I need to pull the cases apart and see if they are salvagable. As for the machining, excatly what should be done? What is meant by tunnel port? How large should the holes be drilled out? I guess the bearing area also needs to be machined out. I guess it is a press fit?
 
The only reason the bearing area would need machined is if the case is bad, if so all the bearing surfaces will be recut or honed as welll as in between the case halves. most are putting a little more crush in the bore than stoxk. If you want to talk in person about this my number is 1-406-295-5993. Some times it's easier on the phone.
 
Got a hold of Andre Bernard at CVTECH. I can get a crankshaft for $500. I guess I need to pull the cases apart and see if they are salvagable. As for the machining, excatly what should be done? What is meant by tunnel port? How large should the holes be drilled out? I guess the bearing area also needs to be machined out. I guess it is a press fit?

"Tunnel Porting" is just another name for boring out your case, just gives it more power. Lots of different ways to do it. I recomend taking it to somone who has done this type of work on snowmobile engines before as you don't want to attempt this yourself. You will need to get your case "line bored" as well and the oil holes need to be drilled out to (15/64) to allow more oil to get to the bearings. I'm sure their has to be a good Mod shop close to you have you tried calling Trevor @ MAX Machines in Sicamous? He should be able to stear you towards a good machinist in your area. His # is 250-836-3648. He may even have a shortblock all done up for you ready to drop in. Give him a call.
 
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