Pages: 1
Posted by: ecorman1
This sounds similar to what Maximus was having a problem with. When he posted, he thought it was the motor but later, the rear end. I think he's decided the noise was actually coming from the motor but it was normal running noise. Not suggesting to quit looking for the cause. But maybe it's not something you should try to diagnose. Trust the dealer since the quad has low miles. But by all means, take it to the dealer so he can determine the problem. If you have a good dealer, it shouldn't cost you anything to check it out.
Chuck
Posted by: KSmicrorancher
Sounds like the same problem I had when my AC had about 3500 miles on it. I replaced the rear CV joint assembly. The popping went away for a while. So I was shure I had replaced the right thing. After revoval I looked under the rubber boot for obvious signs of failure - metal shavings and/or dirt in the grease, but found none. I'm ticked off that the new joint is starting to pop now with only about 500 miles on it. It will have to get alot worse till I replace it again since it was about $215. It only took about an hour for me to remove the rear axle and joint and reassemble with the new joint assy. I'm not sure how long it would take to replace a joint on the independent rear end or how to isolate which side it is popping from. When my joint pops I can feel it in my foot pegs at the same time.
Posted by: KSmicrorancher
The popping had no affect on the ride. I drove it for probably 700 mi before doing anything partly because it was so hard to determine where the noise was coming from (like tta583's experience) and driveline parts are too expensive to just start replacing on a guess. It also came on so gradually that I'm sure it had started popping mildly long before I got irritated. So I waited till it got worse and then heard some automotive radio program talking about CV joints popping when a front wheel drive car was turning around corners, so I then had at least an educated guess. The other factor was that I was 99% sure that it was coming from the rear driveline and on the ACT suspensions you only have the rear engine bearing then the CV assy then the rear differential assy. Of the 3 the CV is the cheapest thing to replace.
Posted by: CatKrazy
Mine did the same on my 500 left rear side. i could lift the tire off the ground,grab hold of it and pull back and fourth like trying to pull the wheel off and it would pop. It ended up being the bearing case
Posted by: gutpile
Have you rode through any deep water or mud? I had the same problem but it was the CV....so you might consider havin another look at your Boots/cv.....axles get expensive (as i found out) good luck
Posted by: peteyz24
i think they mean bearing, lift the wheel, one the side you think the sound is coming from, off the ground with a jack. and see if the wheel is real loose
Posted by: peteyz24
i beleive the noise tha maximus had posted about was a compression release valve. My 500 has this noise to and it happens during acceleration, especially hard accel. Keester says his happens when he lets off the gas so this is must be different. Here is a link to Maximus' Threadif you want to read it and see if it sounds like what you have, but from what you have said it sounds like something else
Posted by: Bob2003
I had a poping noise coming from my 2003 AC 500i if I got on the bike and rocked it back and forth hard I could get it poping. I brought it to the dealer and he first replaced the baring it was ok for about 25 miles and came back. He then replaced the baring housing all has benn good for the last 600 miles so it may be the housing that is bad.
Bob AC 500I
Posted by: ScrambleMe
I found the same symptoms in a sportsman once, Popping only in reverse, noticed it after sitting for a month or so. I was able to determine the noise comeing from the left rear side. I was thinking it may have been the rear diff. bearing, but didnt want it to be that so I thought I would look at the easier things first, so I pulled the outer cv boot, it looked good. Then pulled the inner cv boot and there it was, the grease looked like mud. Apperantly at some point water had gotten in and started rusting things and after running it for a bit it mixed all the rust w/ the grease and made some nasty looking grud.
I'd check that before just riding it and seeing what breaks, maybe what ever it is could still be salvageable instead of being stranded and haveing to spend some serious cash to fix what ever the problem is and anything else that might be damaged when it goes.
good luck.
Posted by: mudcatsick250
odd.
Posted by: Bear4570
With the wheels off the ground roll them over. A bearing just starting to go bad will be noisy but will not necessarily be loose, just rough. See if one side is noisier than other, feels rougher than the other.
Bear
Posted by: Bear4570
Yes, with what you have discribed it could be a lot of things. You might check for something loose in the suspension, don't ask me what down to a specific, as I am terrible at trouble shooting noises without hearing them. Just make suggestions.
Bear
Posted by: hondabuster
Classic symtom of a bad u joint in the drive shaft.
Posted by: turbocoupe
does it make this noise going around sharp turns? forward or reverse? i just encounterd a noise that i thought was the rear diff on my 650, come to find out its the left rear outer cv joint when i back up or take tight turns it makes a pretty loud snapping noise,similar to a front wheel drive car when taking corners,so i pulled the axle out and disassembled the outer cv joint come to find out the inner ring is wearing out causing the 6 balls inside to bind,and when forced they make a snapping sound.hope this helps
Posted by: turbocoupe
well mine now will only make the noise when backing up and taking tight turns, as far as taking it apart they are very simple to do on the independent suspention, pull the wheel then remove the cotter pin on the big axle nut, remove the axle nut,then take the upper control arm bolt out ,top of the rear hub, then grab the hub and pull away from the bike,now grab the axle from the inside cv and give it a slight tug , it should pull right out, remove the band clamps on the outer cv slide the boot back grab some rags and wipe away the old grease, i think you will find if you hold the axle and pull back and forth on the outer cv you will have play in the cv, and if so its getting worn out,
Posted by: Keester
I have an '03 400i 5 speed with 460 miles. I am hearing a popping noise coming from my rear differential area. Sounds like a CV joint problem, but I checked the CV joint closest to the sound and all is well. The bike still rides good, but when I put it in reverse and backup, then let off the gas it pops. Any ideas?
Posted by: Keester
Been through deep water, but that was in the first week I had it. It is a year old now. Curious...what was the problem with your CV?
Posted by: Keester
I emailed an Arctic Cat Dealer and here is their response: "It sound like you could have a outer brg in the hub making your noise." What is a brg?
Posted by: Keester
both wheels/tires are solid...no slack. this is frustrating me...
Posted by: Keester
there is no rear ujoint.
Posted by: Keester
I'll check again...could it be something in the rear diff?
Posted by: Keester
Well guys...seems like it is coming from the transmission case. I've resigned myself to just ride until something breaks...that way I'll know what it is. Thanks for all the suggestions.
Posted by: Keester
That is what I was worried about. If I replaced the rear axle assembly, the popping would come back. I'm curious...did it affect the ride any? Did you ride it very long after it started popping? Thanks for the info...
Posted by: Keester
That sounds exactly like my problem...mine only does it when backing up and letting off the throttle. I wasn't sure how to take the outer cv joint apart, so I rotated the shaft in a circular pattern to see if there were any rough spots, but found only a very little spot that felt even remotly rough.
Posted by: fitzs
its is the bearing in the hub cat has a bulletin need to remove bearing and add brown lock tight or bearing
lock tight and reinstall bearing will fix popping noise in rear hub causing is bearing moving in hub assembly
Posted by: tta583
Man figuring this out sounds like a pain in the butt for you guys. I have chased things down before such as this and it drove me nuts. Any way, drive the thing with someone walking next to it and try and make it pop. Get a different perspective on where the noise is comming from. Being in the seat may maek it hard if the noise bounces around under the plastic or if it is translated along the frame to another part of the quad. IE the trans.
The last time I went through something similar was on a car. It has a wierd exhaust leak, sounded like a bearing growling, like one was going bad. I went through every accessory on that side of the motor as I was unable to isolate it even with a mechanics stethescope. Figured out it was a slight exhaust leak that poped up under load when the trans was taken out of park. The noise was traveling up an accessory bracket that supported the main bracket which held the alt, A/C, PS pump, and belt tensioner.
Good look.
Brent
