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Belt EXPLODED

17K views 89 replies 19 participants last post by  sandshredder  
#1 · (Edited)
Was running in a field for maybe 10 minutes. 4wd high (unsure if this is ok to even do).
After it blew up my gf said she thought she smelt something


Heard a loud bam then lost the drive. Assuming its the belt.
Supposedly had a new belt in it.

I have those new clutch pucks and a gates belt.

Anything else i should check?

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#8 ·
Well it seems our definition of romping is different.

If you’re just driving at 55 and for no reason it just explodes then I would say yes you have a problem somewhere. If you just finished your very best Gymkhana impersonation and THEN while just driving through field at 50 it exploded, different story.

How long have you had the machine? Have you ever heated the belt up prior to it exploding? Ever clean the clutches? How many and what type of miles on the belt? You hill climb sand dunes??

Info man and somewhere in these forums an expert will chime in for your exact scenario and help you out.
 
#14 ·
You should start with him for info. There are alignment tools out there to be had.
rzr 1000 clutch alignment tools into google search bar and have a lookee.

I ROMP the hell out of mine, sometimes donuts can be especially abusive to the belt, but once setup right these machines are a ton of fun. Some are easier than others to “set up right”. If the last owner burnt the shit out of the belt and left it all over the sheaves of the clutch then you get what you get.

Lots of factors play in to the belt blowing up, once you start with a new belt pay attention. How it wears and feels while driving vs. how you are driving can tell you a ton about what’s going on when or if it blows again.
 
#17 ·
So do you suggest i out a brand new belt on and the clutch rollers and give it another go?
These machines do not like to sit and idle (running) for an extended time. Especially on a new belt, it can heat up one small spot where the primary sits and spins against it. That can create a hot, which becomes a weak, spot. Not saying you did, but who knows about the guy that just changed it. Once belts get a little wear, they are not quite so tight around the center shaft of the drive clutch. Just a thought.
I have personally let it idle for like 20 minutes . Just because. Do you suggest putting the new on and the rollers then breaking it in right? And see where that gets me

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#15 ·
These machines do not like to sit and idle (running) for an extended time. Especially on a new belt, it can heat up one small spot where the primary sits and spins against it. That can create a hot, which becomes a weak, spot. Not saying you did, but who knows about the guy that just changed it. Once belts get a little wear, they are not quite so tight around the center shaft of the drive clutch. Just a thought.
 
#19 ·
No i bought the rzr last month with said new belt installed (said he put maybe 40 miles on new belt). I rode it around the original owners property for 10 minutes. Rode it around my house for 20 minutes. Then have rode it up and down thr street.

Yesterday i brought it to my buddies field, within 10 or so minutes of decent throttle i heard a BAM and well you see the belt. (Mostly in 4wd high)

I have you guys gates belt to install and the new round rollers.

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#20 ·
[quoteLike had the pedal down going 50ish mph through a field. If this shit cant handle that then i need to get rid of it [emoji849]

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This probably sounds the the best solution! You mention you have a new gates belt and rollers, but then it sounds like those aren't even installed? That does not look like a gates belt in the pic. You shouldn't take it and and just "romp on it" first thing after sitting a while. There should be a "warm up" period for the belt at the beginning of every ride if you want a belt to last. also, new belts have a break in period, that does not involve romping it.
 
#21 ·
[quoteLike had the pedal down going 50ish mph through a field. If this shit cant handle that then i need to get rid of it [emoji849]

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This probably sounds the the best solution! You mention you have a new gates belt and rollers, but then it sounds like those aren't even installed? That does not look like a gates belt in the pic. You shouldn't take it and and just "romp on it" first thing after sitting a while. There should be a "warm up" period for the belt at the beginning of every ride if you want a belt to last. also, new belts have a break in period, that does not involve romping it.[/QUOTE]No. The belt in picture is the stock belt that he just supposedly put on. I have a spare gates belt


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#24 ·
Hi Polarisrzr18,

New belts need to be broken in. That means ride around 25+ miles at varying speeds, but keep your foot out of it. Ride in low at anything under 30 mph. No hard throttle use. Use low a lot during break in. Install a belt temp gauge and use it. Warm the belt up every time until it gets to at least 95F-100F which doesn't take that long unless you live in really cold climate. Even after it's broken in stay away from jamming the throttle and excessively quick and full throttle use. Belt temps are highest the faster you go and the more in and out of the throttle you are. After 9K miles that's a proven fact.

I now have 9K miles on my 2015 1K Rzr. I am on my third belt. I get at least 3500 miles out of my belts. I drive by my Razorback belt temp gauge and not by how fast my foot wants to go. I keep a steady foot and use low gear when I'm supposed to. I have never seen my belts overly worn or any cracks. I always break my belts in and I always warm them up when starting out. I do inspect my belt box area and belt after long trips. (i.e. 500+ miles) I keep what little dust (which is just mobile sandpaper) washed out of the belt box and always run it afterward to let it dry all the parts before putting the cover back on.

These things have worked for me for 9K miles.
 
#27 ·
I just hope i dont have to replace the secondary

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I know. A lot of talk about wear on the secondary, but no answer as to how much is too much. Kind of your original question, at least as I took it. Mine has some wear, but I figure as long as there are no abrupt surface changes the rollers should move across it just fine. The wear from the first set through the second set has not been significant.
 
#33 ·
I made a puller with a 3" length of 2-1/2" sq tube, cut one side out of it, welded a washer to one end, and used a length of 5/8" all thread through the center of the clutch, washer and nut (2 jammed together) on the bottom. Round would work too, just so you have enough room to work the snap ring inside the tubing. It expands in length about 2-1/2" as you release it. Not real high pressure. Make sure you pay attention to the blind spline when re-assembling. (and the x's for balance)
 
#34 ·
That secondary looks fine, I'd say; but that's Todd's area of expertise...

Follow the clutch exhaust tube from top of cover, above secondary, to it's end. Make sure no pieces of belt stuck in there blocking airflow, will cause a belt overheat real fast if the exhaust is blocked.
 
#41 ·
I suspect you didn't do anything wrong. I would put a new belt purchased from the Polaris dealer on it and see what happens. If possible, verify that the belt that broke was the correct belt for your machine. Read the advice you get on this forum with a skeptical eye because as I've pointed out there is lots of bad advice on here but generally good advice is provided. But hey, it's all free advice and you typically get what you pay for.
 
#43 ·
Gates is a brand and tells you nothing about whether the correct belt was installed. My opinion is that if belt temps were so critical to need a gauge then Polaris would have provided a gauge to monitor that on a $20k machine.

Get the right belt and verify that it is the right belt. Put it on per the manual and if your manual says to "break it in" then do that. See what happens. Given that you have no history with the belt that was on there and the machine there's not much else you can do until you prove that the correct belt, broken in per the manual, broke while doing what the machine was designed to do.
 
#44 ·
Im not sure if your ragging on gates or not.... but i bought the gates c12 belt which - according to hunterworks page is the fit for thr 16 1kxp rzr.


And thats kind of what im thinking, i dont want to have to monitor my belt temps. I didnt buy a verfy modified rzr to race the dunes with.. its stock except for bumpers winch and some other shit.

I think honestly ill buy that fan for the belt housing before i buy the gauge.
Or even alba racing sells the blower kit AND the gauge for 300...

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#50 ·
Belt looked to not be worn that much from the pics ?

I can’t see how 50 mph driving in 4WD is good for the machine, I’d never do it. I keep my 4WD speeds @ around 15 mph max. Not the belt but the drive gear I’d worry about.

Friend of mine smoked a belt on his 1000 Razr putting it up on his trailer while struggling to get it up there, I guess spinning the tires.


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