Last night the belt on my brothers supercharger broke. It was the stock pulley and belt. And he has had it for like 6 weeks. What is the common problem for the belts to brake.

 

Pulley misalignment is the most common reason for broken belts.

A slipping belt might also break prematurely due to heat and abrasion.

 

my supercharger belt also broke yesterday i was driving in 2nd gear car bogged out i punched it next thing i c all my lights go on rpms drop i pull over belt got shredded

 

that so sucks, any idea's what happened to you ?

 

Within 6weeks it sounds like a misalignment problem...you need to find your problem and shim out the blower or shim one of the other pulleys or even your main pulley on your blower slightly towards your engine, to align everything...it will be a shoot and miss kind of thing till you finally find what lines everything up...

-matt

 

Do you guys look under the hood much? I have never had a belt just randomly break with no signs. Maybe your belt was loose and it hopped a rib on the sc pulley and you continued driving until it shreaded. Your sc will still work while belt has jumped a rib. I dont beleve in belts just suddenly breaking theory with no warning

 

If you can drive for 6 weeks the alignment cant be that off if any.

 

how did you intall the idler pulley?

does it look even with everything else?

which way did you screw in the alternator?

how much out of alignment is the s/c pulley?

 

i think thats what happened to my belt it got shreded it came of the charger , it has 2 ribs left on the belt so i just cut it off

 

ok what happened is i let my brother drive my car, he took it on a road trip blasting the radio i'm sure and i'm sure he was driving it hard, i think the came loose theary makes sense, i about 3 weeks ago checked the belt and had to tighten it, so it is possible that it jumped and broke, my brother told me he saw the belt next to the pulley what was left of it but he kept driving, i could kill

 

i never unscrewed the alt. on 2k1 it says nothing about this in the directions, and the belt looked new still when i tightened 3 weeks ago

 

i have a dumb quick question....

since we have the same compressor as a mustang ca we buy the mustang pulley?
i want to buy the 2.87 pulley since i have to take it apart anyway. 6 rib right?

 

I hardly ever drive with radio on in stop and go traffic. I have made the belt jump a rib by spinning wheels to much. 2.87/ 6 rib, thats right. $75 from vortech and about 5 business days. I down shift once from 5th to 4th (trying to slow down real fast) going 135mph, it jerked the belt so hard it started shreading instantly. That was such a dumb thing to do, rpm's went straight to redline. Try and get your self in the habit of looking under the hood atleast once a day to make sure the belt is on right. Just a quick peak can only do you good.

 

thanks for all your help i do apreciate it, you guys are great

 

another question. this one's for the belt.

do they make a high performance belt? or is gates as good as it gets?

 

Goodyear Gatorback is a good belt...thats the one im using

-matt

 

anybody know the part numbers for the goodyear gatorback

 

no I dont. I do know alot of people have a hard time finding the gatorback. I have always used the gates just because I dont take the time to find them either. Someone will soon drop the belt size for you.

 

695 - 3.125
690 - 2.87

Go to your local Goodyear Tire place

-matt

 

If I'm not mistaken, Mustangs have an 8 rib crank pulley, so their SC pullies also have to be 8 rib.

 

its all about proper installation. I had my supercharger for 4 months, never had a problem with belts.

 

I've noticed that the belt would jump if the engine hasn't warmed up enough, even with my washer shims in place. This happened once to me even during the hot summer. Best to drive around normally for a while to get the belt and engine up to normal operating temps before laying on the pedal.

 

ok today i got a break down of what the belt #'s mean for instance the gates belt

k060703
06=6 ribs and
0703=70.3 inches i think thats alot easiar way of understanding your belt size, now i a gator back you all rec, a 690 which would be 69 inches, from what i understand that would be 1.3 inches smaller than a gates belt. er aybe thats why the gatorback is better because it fits tighter... so with this theary i assume the proper gates belt for a 2.87 pulley would be a K060690. does that sound right?

-jeff

 

690 = 2.87" pulley
695 = 3.125 Pulley

-matt

 

i just got my belt fixed i had alil branch got caught and shreded the belt

 

How the heck did a lil branch get up in there? Did a squirrel make a nest in there?

 

i duno bro but its been madd windy the last few days and floods all over

 

damn lil branch