Vibration satv carrier bearing - Polaris RZR Forum - RZR Forums.net
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post #1 of 22 Old May 30th, 2019, 04:23 AM Thread Starter
 
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Vibration satv carrier bearing

Carrier bearing went out, and decided to replace it with the new satv pillow block style. U joints we're toast, so opted for satv rhino prop shafts, got it all installed (properly clocked 90 degrees) and had bad vibration above 20 mph. Called satv, and they sent me new shafts. Installed all of that last night, and I still have vibration, doesn't seem as bad, but more than what I consider acceptable.

What are my options? Vibration wasn't there with the stock c.b. could it be something in the front diff and be a coincidence? Everything feels right, and awd works well.
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post #2 of 22 Old May 30th, 2019, 08:12 AM
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Re: Vibration satv carrier bearing

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Originally Posted by Buffalobillcody View Post
Carrier bearing went out, and decided to replace it with the new satv pillow block style. U joints we're toast, so opted for satv rhino prop shafts, got it all installed (properly clocked 90 degrees) and had bad vibration above 20 mph. Called satv, and they sent me new shafts. Installed all of that last night, and I still have vibration, doesn't seem as bad, but more than what I consider acceptable.

What are my options? Vibration wasn't there with the stock c.b. could it be something in the front diff and be a coincidence? Everything feels right, and awd works well.
That is a frustrating situation. At this point I would put the RZR on a lift and carefully bring the car up to speed and see if the vibration can be observed in the shaft.



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post #3 of 22 Old May 30th, 2019, 10:29 AM Thread Starter
 
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Not a bad idea. Only thing I thought could have happened, was that roll pin was STUCK in there, took alot of beating. maybe that front diff pinion bearing is shot?
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post #4 of 22 Old June 4th, 2019, 12:41 PM Thread Starter
 
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Pinion bearing was BAD.
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post #5 of 22 Old June 5th, 2019, 05:52 AM
 
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Re: Vibration satv carrier bearing

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Pinion bearing was BAD.
Thanks for sharing what you found.

Pinion bearing in the front diff?

Have you driven it since replacing the bearing?
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post #6 of 22 Old June 5th, 2019, 01:43 PM Thread Starter
 
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Parts are on order. But with the dif on the bench, you could feel the flat spots in the bearing. For what it's worth, drill those roll pins out if there stuck.
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post #7 of 22 Old June 7th, 2019, 06:18 AM
 
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Re: Vibration satv carrier bearing

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Originally Posted by Buffalobillcody View Post
Parts are on order. But with the dif on the bench, you could feel the flat spots in the bearing. For what it's worth, drill those roll pins out if there stuck.
Roll pin stuck....LOL.

Oh yeah, I beat that thing and used no less than a 55 gallon drum of penetrating oil.

Gee whiz.
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post #8 of 22 Old June 7th, 2019, 09:59 AM
 
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Re: Vibration satv carrier bearing

Air hammer works great on those roll pins, mine came out in about 3 seconds. 5/16 bolt 2 in long fits right back in place on a 18 XPT.
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post #9 of 22 Old June 7th, 2019, 10:27 AM
 
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Just tidbit of info. Don't drill out the roll pin and don't use a bolt. 5/16 punch and hammer or air hammer and it comes tight out. Use a new roll pin for reassembly. A roll pin keeps the joint tight by allowing the pin to flex. A bolt will wear and come loose allowing slop. This is the reason the factory uses a roll pin and not a bolt.
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post #10 of 22 Old June 13th, 2019, 07:51 AM Thread Starter
 
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Well, second set of super atv shafts, and rebuilt front diff and it's still there. Besides the prop shafts/carrier bearing, what else could it be? Wheel bearings feel tight, bushings in the front end are good, nothing seems to be rubbing.
Super atv customer service is hit and miss. I'm to the point I want to just return there parts and order oem.
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post #11 of 22 Old June 13th, 2019, 12:55 PM
 
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I just put a new carrier bearing in my ‘18 XPT and it has a noise now that wasnt there before. Thought it may have been the bolt and nut that I used in place of the roll pin, so I took the bolt out and put a new roll pin in it. Noise is still there, I’m tired of fooling with it, gonna run it and watch it. No vibration, just a noise in the front driveshaft, think its the carrier bearing transmitting the noise into the shaft. Mine is a pillow block also like the SATV one, one I found on ebay for $100

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post #12 of 22 Old June 13th, 2019, 08:20 PM
 
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Re: Vibration satv carrier bearing

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Originally Posted by RZR_Joe View Post
Just tidbit of info. Don't drill out the roll pin and don't use a bolt. 5/16 punch and hammer or air hammer and it comes tight out. Use a new roll pin for reassembly. A roll pin keeps the joint tight by allowing the pin to flex. A bolt will wear and come loose allowing slop. This is the reason the factory uses a roll pin and not a bolt.
This may be good advice. Removed the front diff for a different reason but noticed the splines had worn. I replaced the pin with a bolt 1k miles ago. Just looked at the cost of a new pinion - ouch $600+, new pin $4.

I know the pin was a bitch to get out but something to consider for longevity.
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post #13 of 22 Old June 14th, 2019, 04:13 AM
 
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Re: Vibration satv carrier bearing

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Quote:
Originally Posted by RZR_Joe View Post
Just tidbit of info. Don't drill out the roll pin and don't use a bolt. 5/16 punch and hammer or air hammer and it comes tight out. Use a new roll pin for reassembly. A roll pin keeps the joint tight by allowing the pin to flex. A bolt will wear and come loose allowing slop. This is the reason the factory uses a roll pin and not a bolt.
This may be good advice.
Thanks for the vote of confidence

The SATV carrier bearing is bolts to the frame without isolation. Without some form of rubber isolator it will transmit drivetrain harmonics to the frame. So even small vibrations will be more pronounced.
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post #14 of 22 Old June 15th, 2019, 07:39 AM
 
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Re: Vibration satv carrier bearing

I used a layer of rubber gasket material between the frame and bearing block to alleviate the vibration transfer. Haven't tried it out yet, other than down the street to test.
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post #15 of 22 Old June 15th, 2019, 05:56 PM
 
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Quote:
Originally Posted by kkirt1 View Post
Quote:
Originally Posted by RZR_Joe View Post
Just tidbit of info. Don't drill out the roll pin and don't use a bolt. 5/16 punch and hammer or air hammer and it comes tight out. Use a new roll pin for reassembly. A roll pin keeps the joint tight by allowing the pin to flex. A bolt will wear and come loose allowing slop. This is the reason the factory uses a roll pin and not a bolt.
This may be good advice. Removed the front diff for a different reason but noticed the splines had worn. I replaced the pin with a bolt 1k miles ago. Just looked at the cost of a new pinion - ouch $600+, new pin $4.

I know the pin was a bitch to get out but something to consider for longevity.
Great advice, thank you! My bike came with the backyard upgrade bolt assembly and the rino drive shaft wasn’t clocked properly. This ended up being the cause for my vibration.

Link:
https://youtu.be/zdN0zB50na0
Had to buy a new prop shaft due to how damaged it was. Now the rear seal is leaking so I’ll have to take it back apart but am going to use the air hammer trick, thanks for the advice!
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