<VV> Re: Belt Slippage

[NicolCS at aol.com]

[Craig said:]Slippage  would be even worse at lower rpm.   I'm going to try 
this 
again  someday with a brand-new belt to see if the results  change.

[Fraink said:] In actual experience, a glazed belt will alow more power 
throughput at lower RPM

[Craig replies:]
I don't claim to be an ex-pert (or even a current one) but as I understand 
things with certain loads "on" and a certain battery charge, the car's 
electrical system will demand a given amount of current.  Knowing system voltage is 
14ish, that means so many watts (aka horsepower) is needed.  At a given rpm, say 
3000, that horsepower requires a certain torque on the alternator.  At lower 
speeds, the alternator field current is increased in order to maintain the 
output current.  Thus, at 1500 rpm, the torque (belt load) will be doubled 
compared to 3000 rpm.  I guess it's possible that a glazed belt might save itself by 
slipping but I've never experienced that.

Craig (puzzled) Nicol