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Hey guys, i am just looking to see how many XTZ owners out there have had their bevel gears break, causing complete engine failure. I've had 2 go on my XTZ, and I only have 638km on the machine. My arctic cat dealership said that they have never heard of this problem, so if you could just chime in and say you have, I will show them this thread, so they can see for themselves its not just me. Thanks!!!
 

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Bevel gears

Hey guys, i am just looking to see how many XTZ owners out there have had their bevel gears break, causing complete engine failure. I've had 2 go on my XTZ, and I only have 638km on the machine. My arctic cat dealership said that they have never heard of this problem, so if you could just chime in and say you have, I will show them this thread, so they can see for themselves its not just me. Thanks!!!
What gears are you referring to in the engine? Part numbers or pictures work great for me.

Thnx,
RS
 

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What gears are you referring to in the engine? Part numbers or pictures work great for me.

Thnx,
RS
Ya, I'm curious too..
 

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Hey guys, i am just looking to see how many XTZ owners out there have had their bevel gears break, causing complete engine failure. I've had 2 go on my XTZ, and I only have 638km on the machine. My arctic cat dealership said that they have never heard of this problem, so if you could just chime in and say you have, I will show them this thread, so they can see for themselves its not just me. Thanks!!!
Bad bevels are common with the mudders. Big tires and hammering on it in reverse seem to be what makes them go the quickest. Sometimes just the gears go and sometimes it cracks the cases. There was a bevel gear update on the 09 model H1s I believe. Checkout the arcticcat section at www.highlifter.com go to mudhole, then forum. I've read where some guys are having their gears cryod. Do you have bigger tires?
 

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Discussion Starter #5
i don't have pics, as the machine is still getting fixed, been there for a month on thursday, but whats going is a secondary gear in the tranny, which then takes out the whole engine.
 

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Discussion Starter #6
Also, the tires i am running are 27" grim reapers, which aren't that big when you compare them with the stock 26" tires.
 

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Discussion Starter #8
Hopefully a new engine. Just fighting with my dealer right now. They said they have not gotten paid from the first job, called ac, and they said there was no claims. Someone is lying.
 

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Curious what caused them to go the first time. Were you hammering on it pretty hard. Any driveline bind, like stuck and spinning the wheels till they hop?
 

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Bad bevels are common with the mudders. Big tires and hammering on it in reverse seem to be what makes them go the quickest. Sometimes just the gears go and sometimes it cracks the cases. There was a bevel gear update on the 09 model H1s I believe. Checkout the arcticcat section at www.highlifter.com go to mudhole, then forum. I've read where some guys are having their gears cryod. Do you have bigger tires?
The bad bevel gears in the diffs was primarily an XT650 and XTX700 problem on models prior to 2009. The XTZs haven't been having that problem for the most part. As for mudders, those guys have all kinds of breakage on every brand. When you put 30inch mudder tires on, spin the tires uncontrollably in mud and then the tires catch traction periodically, things will break. Most mudders expect this kind of damage and buld accordingly.
As for the secondary gear in the transmission breaking, I have never heard of that problem. Doesn't mean that isn't a valid problem, I've just never heard of it happening before now. I don't suspect the 27inch tires to be the main fault, oversize tires tend to break axles and diff's before trannys get broken.
Good luck Fidds, I hope they get it taken care of. Have the techs check the alignment of the gear shafts and such, it sounds like something may be misaligned in the tranny.
 

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The bad bevel gears in the diffs was primarily an XT650 and XTX700 problem on models prior to 2009. The XTZs haven't been having that problem for the most part. As for mudders, those guys have all kinds of breakage on every brand. When you put 30inch mudder tires on, spin the tires uncontrollably in mud and then the tires catch traction periodically, things will break. Most mudders expect this kind of damage and buld accordingly.
As for the secondary gear in the transmission breaking, I have never heard of that problem. Doesn't mean that isn't a valid problem, I've just never heard of it happening before now. I don't suspect the 27inch tires to be the main fault, oversize tires tend to break axles and diff's before trannys get broken.
Good luck Fidds, I hope they get it taken care of. Have the techs check the alignment of the gear shafts and such, it sounds like something may be misaligned in the tranny.
Bevel gear issues are in the trans. 650 and 700 as you stated. Never heard of the xtz having the problem either but I think a few t-cats have had issues.
Check these links:
Serious Problens 650 H1
Beval gears
 

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Bevel gear issues are in the trans. 650 and 700 as you stated. Never heard of the xtz having the problem either but I think a few t-cats have had issues.
Check these links:
Serious Problens 650 H1
Beval gears
I see what you are talking about, I was thinking of the diff problem the older XTs and XTXs had. Haven't had any problems come in with the secondary gears (bevel gears as you call them). It sounds like the mudders are the ones having those problems, due to the large tires and spinning.
 

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I'm not sure if bevel is the proper term for the trans gears or not, but thats what the mudders call them. I've done a little more reading and it seems there was a bearing update to try and fix the problem then in 09 they went with straight cut rather than conical gears, whatever that means. I try to avoid the mud and never shock the driveline whenever possible. If my trans ever goes I think i'll go rotax.
 

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first of all im a newbe.saw this post and became a member.i have had this problem twice on my xtz.only 400 miles. dealer said it might be the tires so now im running stock tires for the next 200 miles(if it last that long)to see if it happens again.but my thing is if it were the tires shouldn't the belt slip or the cv's or rear end break first before a metal to metal gears break or come apart in the motor?
 

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i got to see the gears, the first time they were not broke. they were just pitted and it was the smaller of the two gears.the onlly way i knew there was a problem was that it made a whining sound between 10 to 30mph and the rear seal of motor started leak.
 

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It is really strange to see here about this problem as I have not seen this in any of the XTZs that I have sold, but we really don't have mud here. I don't really see the tires being the problem as the XTZ has the SLD clutch to prevent damage to the drivetrain in the event the rear end gets a lot of torque to it.
 

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my thoughts as well.and the thing is i dont ride in the mud,mostly at the river and creeks.but it seems that some thing eles should give before the gears in the moter as they r suppose to be the strongest point of the drivetrain.
 
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