i did some really rough raceing yesterday and when i was done riding, i was curious and put my hand on the belt cover. i know they get hot, but this was unbeliveable, you couldent hold onto it for more then 3 seconds before your hand hurt (i have a moderate pain tollerence). i didnt have a tempature reading, but im sure it was exsess of 110 degrees. i've heard of 800's haveing belts snap because of high heat conditions, but i have over 300 miles on mine of grueling race conditions and no problems so far. im just wondering if theres a way to keep it cool without puting it in low or whatever.

 

believe it or not i asked the same question today. look back a page or two. but one guy said he measured the temp and it was 110 degrees. it has to be a lot hotter that inside the cover though. i was thinking of somehow mounting a small fan on the inside of the cover. im sure somthing like that would extend the life of the clutch.

 

I thought about mounting a fan in there too but many people told thats not gonna help cool it because it will just be circulating all that hot air, not bringing in fresh air. I dont know for sure, but I think its worth a try. maybe it should be mounted in the air duct going to the clutch cover.

 

Funny- I had the same impulse today and felt mine, my ankles were burning. It got a little hot today, about 85 maybe? Mine was hot to the touch, but not unbearably hot. I thought that maybe mine was slipping a little, I found myself pegging the gas a lot in some tight trails; that would usually be bad news, but it seemed like I had to do it to keep the speed up.

I dunno, maybe its just in my head... any easy way to check if a belts worn? Only 1100 miles, but about 400 are plowing and the rest are mudding.

A fan wouldnt do much good unless it brought in fresh air, like oondaddy said. And you can't make new vent holes because of water leakage. I think that they are designed to run that hot? I mean, it is a rubber belt spining really fast against metal wheels - its not like the engineers expected it to be cold in there. I would imagine the belt is designed to hold up to some pretty good heat.

t711

 

Forget about the small fan in the intake duct. I've been there and done that.
You would need a fan that could move over 600 cfm to cool down the inside
of the cover. The small fan that I used did fit inside the intake duct but only
moved 32 cfm. I then tried two 3x3 inch fans and a custom made duct mounted
to the frame. They only produced about about 180 - 220 cfm. They only dropped
the temp buy about 5 degrees. I now just use those fans to blow directly onto
the engine head since my TB is air cooled (see pics in my gallery). So, you
will have to use a pretty good size fan to cool down the inside of the clutch
housing. I've given up for now!

 

Wouldn't it be better to blow hot air OUT? There is already a source in, now we need a way to vent .

 

During my race on sunday, my clutch cover got so hot my legs were getting really hot under my riding boots and pants. I am also a little concerned about it, but dont really have any ideas that wouldnt let a bunch of water in too.....

 

I don't know you are either blowing cool air in or sucking hot air out. I don't
think there would be any difference.

 

i was looking around my 4 wheeler and i found a computer 4 pin electic slot notbeing used in the handlebars, you could route a 120mm computer fan from the handle bars with a switch to the exhaust end of the caseing and suck the hot air out. those computer fans run at like 3000rpms, so theres plenty of air moving. i think i might try it.

 

if your not gunna be in any water then ied just make scoops for the belt cover