2013 Pro getting new cylinders and pistons!

[die hard poo]

Well today i stopped by my dealer and he had a demo 2013 Pro RMK 800 on the floor. I decided to snap a picture of the cylinder part number located on the Mag side of the cylinder. It is a different part number for sure than the 2012 Pro Rmk... So I don't if its just injector change the like 12s, but it does prove that it is different than last years. BTW the 13 belt drive and running boards are sure sweet. I will be snowchecking one tomorrow

 

[Scott]

Remember, though, that part #s are known to change between model years even if the parts are IDENTICAL and INTERCHANGEABLE. They do that for many reasons...one of them being to reflect the exact model year that the part is for.

Well today i stopped by my dealer and he had a demo 2013 Pro RMK 800 on the floor. I decided to snap a picture of the cylinder part number located on the Mag side of the cylinder. It is a different part number for sure than the 2012 Pro Rmk... So I don't if its just injector change the like 12s, but it does prove that it is different than last years. BTW the 13 belt drive and running boards are sure sweet. I will be snowchecking one tomorrow

 

[OnlyPolaris]

I work at a dealer and have never seen that. If you could give me a example that would be great. In my experience the part number changes for a reason.

 

[m8magicandmystery]

willikers...when i worked at Yamaha some old parts went through up to 8 superceded different part numbers before it would finally get accepted for order processing..at one time each old part number was active in its history..

 

[RMK935VA]

Polaris does need to do something about longevity/reliability on their motors. I have never had a problem but most of my friends have grenaded their 800s (Pro, IQ, Edge, Gen II) more than once. I suspect that I have been fortunate because I don't ride my sleds as hard as they ride theirs, at least anymore. I am going to be 60 this summer and I am content just getting back there as smoothly and efficiently as possible. My young friends work their sleds much harder than I do mine. Hence, they break them. When we are paying the kind of money that we are for these sleds, it is reasonable to expect reliability out of them. A four year warranty is nice but it is still a pain and possibly an expense to get a busted sled out of no man's land and then have to wait for several weeks or longer to ride it again. I wish Polaris would just give us a bulletproof 800 with 150 horsepower. If they did, the power to weight ratio would be the best in class and it already handles best and is the lightest. What the heck esle would anyone want in a stock 800 mountain sled? Easy answer, nothing!

 

[Scott]

I work at a dealer and have never seen that. If you could give me a example that would be great. In my experience the part number changes for a reason.

Interesting...I was always under the impression they often had new part numbers for newer vintages.

 

[INDEEP]

Somebody get to the bottom of this. It'd be great news if your on the fence about purchasing a 13. Part #'s don't mean $hit.


The 2013 PRO...now featuring reliable motors

 

[Hardass]

The 2013 PRO...now featuring reliable motors

Wake up your dreaming again

 

[pura vida]

the cylinders have been changed on the 13s.

if this leads to greater reliability is another question. is this the issue or a symptom? and are you basing your reliability concern solely on the internet? if so, and it puts your mind at ease, then you might want to go with a sled that you feel has the best reliability according to the forums.

pv

 

[05900]

I heard they were retro fitting a small block 350 and making it 350lbs for 2014...

A 383 and I'm sold! Torque like the ole 900!! As long as it lasts through the warranty period is perfect, no more changing ECU's it'll stay in for good ( I hope they let me keep it )

 

[lurker]

maybe they're getting the case ready for more CCs ???

probably not but they've gotta be thinking engine next
that would put the cherry on the cake

When they released the latest chassis and engines they most likely already had already started on the replacement for it. Also agree with the money to be made comment, I'd like to add put a damn heavy reliable smooth powerful tripple in a new light weight chassis! All the old fools like me as well as a few smart young fella's would lay down the $$$.

 

[rp2000r]

Cylinders have changed, I was told 2mm thicker in the problem area.
Hopefully it helps but only time will tell.

 

[shabs]

--Change in piston design would be the most meaningful change. Apparently the skirts on the Skidoo 800 are even thinner than Polaris.

Ya both motors need work... skidoo is giving new pistons to ppl with 300miles on 2011's

 

[powderkiller]

How to get the best Polaris?

After listening to all you guys about 800 engine failures just after a few miles it's obvious, polaris is not really conserned about customer satisfation. I think the smartest thing to do would probably be to just have my 08 700 motor stuffed in the new pro chassis, then and only then, would I have the best of both worlds. After all, polaris has constantly proven, year after year, that they're not truelly worried about how consumers feel after spending that kind of hard earned money and being let down on a regular basis! Thier motors haven't proven s--t to me!

 

[backcountryislife]

So I ride with some industry insiders today and learn that not only is Polaris aware of the broken cylinder skirt issue, but that the 2013 WILL have new cylinders and new pistons!

OOOH... you mean just like how the problem was fixed in 2011, or do you mean just like how they fixed it in 2012??

If they had a REAL fix, they'd have it out already.

Don't get me wrong, I'm buying a 2013 pro as well, but I'm not enough of a SUCKER to believe this BS. They've had a disaster of a motor for a long time now & they've done almost nothing to fix it, but yet EVERY YEAR I hear how it's all good this year, the new motor is BOMBER.

Suckers. (like I said... I'm buying one too)

 

[INDEEP]

They fixed it in 2008 with duel ring pistons and a low compression head (recall). In 2010 they added thicker cylinder skirts. I guess they'll try again in 13.

 

[diamonddave]

They fixed it in 2008 with duel ring pistons and a low compression head (recall). In 2010 they added thicker cylinder skirts. I guess they'll try again in 13.

Actually, the 800 CFI-4 used a single ring piston in 2008 and 2009. Prior to the MY release 2010 800 CFI-4, Polaris issued the recall for the 08's and 09's that consisted of the lower compression head and dual ring pistons. The MY 2010 800 CFI-4 sleds came from the factory with the thicker cylinder skirts and kind of went under the radar (thicker skirt) for most of the season.


The first season of the 2010 update was mostly guys complaining of lower power than the 08 and 09 motors and chasing the infamous "can't get over 7,800 RPM's" complaints with only a few engine failures. It wasn't until midway through the 2nd season of the update (2010/2011 season) when the failures of skirts breaking became the big topic.


Kind of like the 2011 Pro. We didn't hear of many failures the first year.



What I find very interesting, is the fact that the 08 and 09 single ring piston's would scuff prematurely however, piston skirt and cylinder skirt failures were totally unheard of. My "inside" info, (if you can really call it that) was Polaris felt the single ring piston would scuff because piston/cylinder clearances were too tight however, were within the Polaris tolerances and industry standards. I would argue that it was improper fueling/mapping/timing for those type's of failures. We had excellent results with Power Commander's and splashes of race gas to fend off deto due to the aggresive timing and compression.

 

[AKSNOWRIDER]

Actually, the 800 CFI-4 used a single ring piston in 2008 and 2009. Prior to the MY release 2010 800 CFI-4, Polaris issued the recall for the 08's and 09's that consisted of the lower compression head and dual ring pistons. The MY 2010 800 CFI-4 sleds came from the factory with the thicker cylinder skirts and kind of went under the radar (thicker skirt) for most of the season.


The first season of the 2010 update was mostly guys complaining of lower power than the 08 and 09 motors and chasing the infamous "can't get over 7,800 RPM's" complaints with only a few engine failures. It wasn't until midway through the 2nd season of the update (2010/2011 season) when the failures of skirts breaking became the big topic.


Kind of like the 2011 Pro. We didn't hear of many failures the first year.



What I find very interesting, is the fact that the 08 and 09 single ring piston's would scuff prematurely however, piston skirt and cylinder skirt failures were totally unheard of. My "inside" info, (if you can really call it that) was Polaris felt the single ring piston would scuff because piston/cylinder clearances were too tight however, were within the Polaris tolerances and industry standards. I would argue that it was improper fueling/mapping/timing for those type's of failures. We had excellent results with Power Commander's and splashes of race gas to fend off deto due to the aggresive timing and compression.

yep..what I heard/saw as well..the 10's with the thicker cylinders held up fine until the clearences got loose enough, at which point they beat the skirts off(piston skirts do fatigue. looser the bore the faster they fold under, leading to breakage)...if polaris can thicken the cylinder enough to stop the cylinders from moving so much, as well as bring a better quality piston(preferably a non silicone based material) that can run slightly tighter piston/wall clearence then this motor should become as reliable as anything on the snow(as well as turning the oilers up and adding a pint to every tank of fuel as well)....

 

[Hawkster]

Here's a 2010 piston and a 2010 cracked cylinder skirt , if the piston where any tighter it probably would of squeaked one . Pretty funny that the piston out lasted the jug . Why address the problem ? Sales say different , what problem , warranty work is chump change , SELL ! SELL ! SELL !

 

[piper]

After im finish with my water dragsters i will take up some 13 800 engines..

i have some 13 mods at my shop and dyno test it if it doesnt get to hot outside