axle/swingarm bearing help - Yamaha ATV Forum
 
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post #1 of 10 Old 09-26-2004, 12:33 PM Thread Starter
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axle/swingarm bearing help

hey my freind has a 99 blaster and is in desperate need of rear end bearings. his whole axle moves and just lately its been making a disgusting sound.im pretty sure they are all smashed from riding with them loose and stuff. im not very familiar with yamahas so what bearings does he need to buy and whats an estimate price on getting a full set of rear end bearings. also is there a link that can tell me the steps on installing them so we dont have to take it to a dealer. is it a hard job? his quad is in the paper for sale so we want to fix it before he has a buyer. thanks a ton. please help

yellow 2001 400ex
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post #2 of 10 Old 09-26-2004, 12:58 PM
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The rear end bearing's and seals run you about 30 bucks I think.I replaced mine about 2 years back and it was fairly easy.I popped the axle out after taking the other stuff off of it,and then took a big punch,stock it in one end and knocked the opposite ended bearing/seal out.If they are stuck take a torch to them and barely heat them up and try again When you instal the new ones make sure there are no metal filings or any burrs in there that would destroy the new set.Take some fine grit sand paper and a dremel and smooth it out and clean it up in there.Then last of all,recoat them with some anti-seize and grease.While they are out,I would also suggest drilling a hole in your carrier,and inserting a grease zerk,that way you can grease them every few rides and they will last longer this way When you put them in,if they don't wanna go in easy,take a socket slightly bigger that the inner diameter of the bearing and a small hammer and LIHTLY tap them in :) Hope this helps you get them in easier

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post #3 of 10 Old 09-26-2004, 01:05 PM
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You can't grease them unless you use greaseable bearings. The ones that you will get at a dealership, or from an atv site are sealed...a grease zerk will do nothing.

But get those bearings out ASAP because the same thing happened to me and it ate my carrier. Its pretty easy to change them make sure you get the bearings and also the seals for both sides

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post #4 of 10 Old 09-26-2004, 01:23 PM
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I guess I should ahve cleared up a bit I guess.I know they are sealed,what I meant was it would keep the outskirts of the bearing from getting dry and then getting torn up Plus,it will prevent water and mud-dirt from packing on your bearings if you ride through some mud quite a bit.

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post #5 of 10 Old 09-26-2004, 04:50 PM
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Get seals too when you get them. You can get them off ebay for like 15.00. Also dont be shy with the grease
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post #6 of 10 Old 09-27-2004, 07:31 PM
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Get a complete kit from pivot works or all balls out of a rockymountain mag. They end up being a lot easier than going to the dealer with all those part numbers. All in one kit. Get a clymer manual for all the procedures on how to install them. Its all pretty easy ecept for when u have to take out the axel

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post #7 of 10 Old 09-28-2004, 08:18 PM
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there is a link on the home page under tech tips that shows a rear end bearing swap
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post #8 of 10 Old 09-29-2004, 08:45 AM
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When I did my axle on the warrior I had to beat the old axle out with a sledge hammer.... Was a PITA just an fyi

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post #9 of 10 Old 09-29-2004, 05:27 PM
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Be really careful if you have to beat the axles out. The threads on the end are VERY easy to bend and mess up. If you have to beat it out, use a mallet or a piece of wood and a hammer.

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post #10 of 10 Old 09-29-2004, 05:52 PM
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i put an air hammer to the inside part of the bearing at about 100psi for like 10 minutes and the axle worked itself out eventually

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