[xltman]

i got a 1992 indy trail 488 with reverse, last winter while ridding, they suddenly locked up. i opened the hood and they were red hot. the only way to get them to break loose was to open the bleeder screw and ride home. since then ive changed the fluid, and rebled the system. went out for another ride, same thing, locked up, and i hadent even used them, so its not like i was riddin on the brakes, running out of ideas, could the master cylinder be bad, there is no visible signs of leakage, and the through bolts on the caliper are not very tight, so they are not binding. what else could it be????thanks
ALSO;their wasnt any air in the system, cause when i would use the brakes, the lever had good tension, responded well

Edited by - xltman on October 07 2001 9:53:00 PM

 

[Skrplyr23]

Sometimes if the drive shaft is bent the rotation of the brake rotor will no longer be true, and constantly rub against the pads, making them hot, and will eventually cause them to freeze without you even touching the brake lever. Also, if for some reason the brakes did stick at one point and rubbed against the rotor, the rotor could have warped or became mis-shaped. Check this and get back to me!

 

[TriumphoverU]

Well i have spoke to XLT and we think we have got it figured out. I thought i would post this here incase someone else was wondering. If it were master cylinder there would be a problem with not having brakes. So i ruled that out. The only other thing that it could be is the brake caliper is not fully releasing. It holds just enough to drag on the rotor and create heat. the more heat created the more the brake fluid expands causing more pressure in the line and in turn locked up the brakes. When he released the pressure by loosening the bleeder screw the brakes released. If the rotor is warped you should be able to feel pulsations in the brake lever. It usually is not enough to turn the rotor red hot but anything can happen. Usually if the rotor is warped it will push the pads further away from it creating a longer pull in the lever.

Just my .02 cents...take it for what its worth

 

[Polaris-Man]

Triumph and XLT have the best explanation. That's what I would have figured anyway.

"Might Be Crazy But I Ain't Dumb" - Cooter

 

[Bman]

Just gotta pee on them!

-------------------------------------------

Lest we forget...... 09/11/01

 

[xltman]

bman, funny thing, we had just left the bar and i already pee'd be fore we left, hate trying to do that with all my shit on, besides always afraid i may accidentally get some on my snow pants, it would freeze, and that would totally suck!!!!!! anyways sold that sled, not my headache anymore

 

[Polaris-Man]

<BLOCKQUOTE id=quote><font size=1 face="Verdana, Arial, Helvetica" id=quote>quote:<hr height=1 noshade id=quote>Originally posted by xltman:

anyways sold that sled, not my headache anymore

[/quote]


Yes! If it causes trouble, get rid of it, same thing works with girlfriends

"Might Be Crazy But I Ain't Dumb" - Cooter

 

[Skrplyr23]

Sorry folks, I was right.....anyways, if it was heat, brake fluid is break fluid for a reason. It is not suppose to expand and contract with temperature changes.

Need some darn snow people.

 

[MegaMan]

Same thing happened to me on my older 90' Indy 500 = 488 cc, same engine. I would be riding and then after awhile they would drag and then lock up (glowing red). My problem is that i had TOO much moisture in the system. When i grabbed the lever and let go, it didn't fully release and i had no idea. The master cylinder would freeze, dragging the brakes, heating the fluid=expanding, and stopping me. Brake fluid does expand and contract from heat. It's designed to not compress when pressure is applied, as well as absorb water and so on..... I changed it with fresh fluid and have had no more problems. Just thought i would share this incase it helped your situation.

Let it snow!

 

[wryjoker]

I may be off a little but Polaris did have a recall on brakes for certain models. I remeber the dealer stateing that mine was in the serial # to be checked or replaced and they did it before I arrived? I think there was a list on the polaris web site. or you can e-mail them.

"Meaningless Ride"