S
850 gone down already??
- Thread starter ANTHONY11
- Start date
It hurts me a little to say this but kanedog is right. This thread is ridiculous
It's a great thread....feels like the forums years ago. There's a lot of chatter, but there's also a lot more tech info than most threads (what can should I buy?)
Perhaps the fact that there's more general discussion posts than blown up sled posts speaks to this not being an epidemic level issue? It seems most of the affected machines are failing very early, with very similar circumstances. But it does seem to be much more limited than widespread...? Unless I'm crazy
0 failures is ideal of course.
Perhaps the fact that there's more general discussion posts than blown up sled posts speaks to this not being an epidemic level issue? It seems most of the affected machines are failing very early, with very similar circumstances. But it does seem to be much more limited than widespread...? Unless I'm crazy
0 failures is ideal of course.
Is that a vote to separate the "dealer" discussion from the original topic or are you just thinking out loud?
I'll let you know what we decide to do.
I’ve enjoyed reading and following this thread from the start.
IMHO it all goes together. For instance, how Polaris has had a history of unreliable 800’s and this was finally suppose to be it. Lessons learned from all there mistakes. 4 years in development even. So many people wanted to believe this was it.
So what have we learned?
Right out of the gate there’s bearing walk issues due to a engineering short sightedness. For which there band aid is loc tite.
The center bearing is not properly lubed.
There honing process is sub par.
Oil lines are blowing off.
There seems to be some kinda cooling issue as well.
Now I’ve learned from this thread all that plus how/what it takes to get those fixes done right. I’ve also learned how these problems are mostly going to hit dealers hard and what that effect can have on the sport that I love.
I’m not very opinionated but I do like information and taking in information from all different sides to come up with my own conclusion. I feel like this thread covers all that better then anywhere else, Facebook, other forums etc.
Yeah maybe there should be a separate thread for peoples opionions on dealer issues but one could also argue maybe there should be separate threads for all the different 840 issues like crank walk, center bearing, oil lines, cooling, or piston life. I got an idea, let’s take up another 50-60 posts on this thread talking about that!
I vote for no moderation
Here is what I think based on information (not from this thread)
1)The bearing is secure and will be fine IF it was assembled with the spacer properly. If you have over 100 miles on your engine, the bearing is not going to walk and seize
2) The honing process is fine and will not be causing any piston failures. you can NOT feel any hone marks with your nail nor is the plating sub-par.
3) The oil line issue, may be a valid one and one for concern. Concern in and that it will make a serious oil mess in your sled. It should not cause engine failure because the mess will be spotted before you can have any failure.
Ride and enjoy your sled, it is the most powerful twin Polaris has ever produced. It runs very well.
IF it fails, you have warranty and if it don't then you have this crazy thread reference.
IMO, this engine is going to be fine (especially in 2020) and it is screaming for a big bore to make it really shine!
1)The bearing is secure and will be fine IF it was assembled with the spacer properly. If you have over 100 miles on your engine, the bearing is not going to walk and seize
2) The honing process is fine and will not be causing any piston failures. you can NOT feel any hone marks with your nail nor is the plating sub-par.
3) The oil line issue, may be a valid one and one for concern. Concern in and that it will make a serious oil mess in your sled. It should not cause engine failure because the mess will be spotted before you can have any failure.
Ride and enjoy your sled, it is the most powerful twin Polaris has ever produced. It runs very well.
IF it fails, you have warranty and if it don't then you have this crazy thread reference.
IMO, this engine is going to be fine (especially in 2020) and it is screaming for a big bore to make it really shine!
Last edited:
Is that a vote to separate the "dealer" discussion from the original topic or are you just thinking out loud?
# 2....I think lol
- Oct 14, 2008
- 3,116
- 3,894
- 113
- 60
<div>Right on! It would be nice if the moderators could clean up this thread a little bit and get it back on topic. Getting a little rediculous</div>
T
I have an update on my 850 that I posted about earlier in this thread. At the time I has 10.7 hours and had oil leakage on my sled. It turns out it was not the PTO oil line, it was the oil line to the waterpump cavity. oil was also getting past a seal in the waterpump allowing it to drip out of the coolant weep hole i believe. I personally was allowed to inspect the crank and bearings. Everything looked good. There was no debris clogging the fittings.... So Polaris martching orders was to re assemble the engine WITH LOCK TIGHT on the PTO bearing, install new seal, and run the unit. The dealer pulled the bottom case off without disasembling the top end so I was not able to give the top end a thurough inspection, but the bit I could see all looked normal. My motor was on the bench next to another 850 that had the PTO bearing contact the crank web at about 4 miles. I do not know what they ended up doing with that motor, but my dealership said for whatever reason said that historicaly, they almost never get motors from Polaris and end up re building everything, which i found interesting given how many people seem to get crate motors after large failures. Im not exactly how I feel about my motor at this point, but I like knowing the bearing is not likely secure, though it was probably fine as it was. Inspection of the crank and seeing no damage was hopefully a good sign and I can understand in my case why they are fixing my engine, but it is also frustrating not knowing a reason why the oil line came off. All fittings and check vavles were flowing properly when tested on the bench
If Polaris was an open book they would have gone public with fixes and intent. The guy has a good dealer that let him look, doesn't have a damn thing to do with Polaris being good guys, if in fact they are...
B
My sled is at the dealer for the same reason at TheBreeze’s sled. My dealer tested flow through the check valves and that’s it. They didn’t inspect the crank/bearings. Just put hose back on and told me don’t worry about it I have 4 year warranty.
This is the best thread to come along on SnoWest in years. It’s like a conversation. You start talking about one thing, move on to something else, then go back to the first thing. Some people have strong opinions, some are more knowledgeable than others, others are happy to learn. Everyone is free to have their own opinion and voice it or not. This thread is a good sign for the health of this forum. It’s what SnoWest used to be like.
My sled is running great so far with 16 hours (not completely out of break in mode). I really want it to hang a beating on the ski doo though. So far it has not. POLARIS, THIS THING NEEDS TO WHALE ON THE SKI DOO IN HILLCLIMBING! If it doesn’t, it’s ridiculous. Why produce a new sled to be in second place?
My sled is running great so far with 16 hours (not completely out of break in mode). I really want it to hang a beating on the ski doo though. So far it has not. POLARIS, THIS THING NEEDS TO WHALE ON THE SKI DOO IN HILLCLIMBING! If it doesn’t, it’s ridiculous. Why produce a new sled to be in second place?
I always do.
Y
I think that if the thread is moderated for content, then it should also be moderated for childish name-calling and insults.
My dad was out there today and talked to this guy as he was loading his sled. Pretty sure he said Polaris sent him a new crank and they rebuilt it.
Last edited:
Similar threads
