nicecurves79

my air conditioning on my 79 does not work and i have been wanting to take the belt off because the unit is making noise. that leaves only one belt, the alternator running the fan. after i took it off i noticed that there was a surge or "after rev" of the engine. after you rev it up and let off the gas the engine does not immediatly slow, instead it revs a little higher before slowing. this is noticeable and slightly disconcerting in traffic. i put the belt back on and this went away. have others who have taken their ac off had this problem? does the fan need 2 belts on it for balance? what are my options? -Thanks

verskel

A/C car - no compressor and just 1 belt around fan, power steering pump, and alternator.

The engine speeding up is probably due to less "loading" and increased Horsepower from the absence of the compressor. You'll need to re-adjust your carburetor for it to idle properly. :yesnod:

Big Fish

I didn't have the surge problem, but did get a belt squeal because of very limited pulley contact on the water pump from the alternator belt. I installed a non-adjustable belt between the balancer and water pump which took care of the problem.