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Author Topic:   Belts that will not stay on?
posted August 11, 2002 11:50 PM
O.K. crew people...
I was running first in the heat and got a flat, happens to everyone, but I was leading the feature and the car just kept getting hotter and hotter. I got another flat and took it in and it looked like old faithful by then. Didn't hurt the engine but found a brand new fan belt had turned around and come off. the pulleys are in alignment and I use a single belt for the power steering and a single for the fan. the belt for the fan has to be out of the pulley just a smidge cause I can't find a belt that fits perfectly. there is no alternater, AND I can not keep the darn belt from coming off, what do I do???? getting kinda frustrated as I have not had a car that good in some time. I should have won the main but got beat in the garage. and I hate that.

posted August 12, 2002 08:33 AM
If the rules will allow you to run aluminum pulleys, that is the way to go. I had the same problem untill I put aluminum pulleys on. They have a deeper groove and the belts will stay on.

posted August 12, 2002 09:14 AM
how do you have your belt for the power steering is it on bolth pullies or just the top or bottom? and this is just all of a sudden probelm right never had it happen before.if it's just on one i would check the other pully and make sure it's alright. if your steering is on the bottom only i would check the water pump grab your fan and and see if it moves at all see if maybe the bearing is out of it and by the belt being out you mean it's wider than the groove?and last are you using after market pullies or stock?

posted August 12, 2002 03:43 PM
If you're using stock pulleys, try using a 3/8 belt. It's narrower and will usually stay in the grooves better.

posted August 12, 2002 04:37 PM
What kind of fan are you running? try a 4 or five blade fan you maybe loading your belts too much and causeing then to slip a bit. Another thing does your power stering have the third point brace - the one that usually bolts the pump to the exhaust manfold. Without it the pump WILL flex and pop the belt. Been there done that.

posted August 12, 2002 04:56 PM
Like powerglides says - use good belts (some brands stretch a lot).
I also run a alternator. I run the belt around the crank pulley/fan & alternator. This way if the belt comes off I get an early warning when the charge light comes on in the cab & I can watch the gauge more closely.

posted August 12, 2002 06:23 PM
Top Cog Belts from Dayco


posted August 12, 2002 07:01 PM
Oh Man, thanks for all the good ideas, O.K. here goes...
Powerglides, both upper and lower pulleys are in good shape. Fan isn't hitting the shroud anywhere. and pulleys are straight but stock.
Merlinmech, and Jammin, It was a brand new belt, a drive rite belt from Champion Auto. Hmmm...?
DirtDobber, 6 blade 17 inch fan from Performance Bodies, brand new cause of an accident 2 weeks ago, had to put new frame horns on the car, could this be causing a problem? I stuffed the front end into the radiator... destroyed the radiator. Hmmmm?
racer17j, power steering is just on bottom, was a problem before then I cured it till the accident, put all identicle stuff on and now its a problem again, wonder what I did? everything is stock and pump is good, belt is out by just a 16th of an inch, but is kinda tight hmmm?
Marty, Great Idea!!!!
I am thinking of using the aluminum pullys and belts. I have purchased a modified for next year (99 Harris from the forum!!) and can use them for next year also, only 3 races left in season and I will miss 2 of them cause of commitments to the military. So next week end is it, like the idea of the reduction too, as the 3 core radiator that I was running did the trick for the heat, now the 2 core that was the replacement to get me through the night is the one that gets the call for the rest of the season.
Thanks for all the great ideas and info, will let you all know how your ideas faired after end of my season.

posted August 12, 2002 07:08 PM
It doesn't matter if it is a brand new belt...I am not sure of the brand you have,