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Username Post: 454 throwing belts        (Topic#299032)
OL55 
Contributor
Posts: 620
OL55
Reg: 01-01-08
06-22-13 04:32 PM - Post#2357568    

When driving the car fast the power steering belt twists and the alternator belt will come off or snap. Any suggestions for solutions?

Thanks,
Larry



 


models916 
Valued Contributor
Posts: 4785

Age: 70
Loc: Addison, IL
Reg: 05-28-10
06-24-13 06:36 AM - Post#2358036    
    In response to OL55

Your alignment is off. Side of belt will climb the side of pulley and roll over or fly off or break if the edge is sharp. When the alignment is correct, a modern belt can't fly off. It will pull itself deeper into the groove.



 
ronnie496 
Newbie
Posts: 6

Reg: 04-25-21
08-28-21 12:12 PM - Post#2826152    
    In response to models916

COG belt



 
bobb 
Super Senior Member
Posts: 5888

Loc: paradise
Reg: 09-05-03
08-29-21 09:54 AM - Post#2826206    
    In response to OL55

besides alignment, are the belts the correct width? if the belts are not all the way in the groove they will want to wander out at high revs. you could make belt retainers. just get a sealed bearing of the size you want and make a bracket for it. as the belt gets driven by the crank the right side will be the slack side. that slack will be the side the retainer needs to be on. the slack will jump off the first pulley it comes to so the retainer should be near that pulley. it should not touch the belt, give it about 1/8 - 3/16 clearance. long distance between pulleys will make more slack and higher chances of belt jumping off. last time around i made all new brackets so my belts would be as short as possible. no more belt issues and it looks cleaner. but it was very time consuming.....or you could get a 4500 rpm rev limiter. lol

70 L camino, grampa engine, g-force 5 spd, road rage suspension. Pray first before all else fails.


Edited by bobb on 08-29-21 10:20 AM. Reason for edit: No reason given.

 
55 Shaker 
Member
Posts: 1631

Age: 71
Loc: north central IL.
Reg: 03-13-06
09-11-21 06:27 PM - Post#2826913    
    In response to OL55

Get the alignment of the pullies correct, and use top cog belts.

The older I get, the more dangerous, I am !!!!


 
grumpyvette 
Senior Chevytalk Moderator -- Performance Subject Matter Expert --
Posts: 17655
grumpyvette
Age: 73
Loc: FLORIDA USA
Reg: 03-16-01
09-15-21 03:06 AM - Post#2827114    
    In response to 55 Shaker

http://garage.grumpysperformance.com/index.php?thr...

IF YOU CAN,T SMOKE THE TIRES AT WILL,FROM A 60 MPH ROLLING START YOUR ENGINE NEEDS MORE WORK!!"!
IF YOU CAN , YOU NEED BETTER TIRES AND YOUR SUSPENSION NEEDS MORE WORK!!


 
Mel Foye 
*VIP* Original Founding Member Group
Posts: 5246
Mel Foye
Reg: 09-29-00
09-17-21 11:46 AM - Post#2827262    
    In response to grumpyvette

I use a safety mask and a timing light to freeze motion as belts and pulleys will show their bad behaviors. I SURE WOULD NOT TAKE IT TO RED LINE. START LOW.



 


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