March underdrive pulleys-who has 'em
08-10-2003, 12:50 PM
#1
Racer
Thread Starter
Member Since: Dec 2000
Location: Wisconsin Rapids, WI USA
Posts: 289
Likes: 0
Received 0 Likes
on
0 Posts
March underdrive pulleys-who has 'em
Anybody else running March underdrive pulleys on an '82? I am doing some trouble shooting and am wondering if they are causing me a low vacuum problem. I have been told the X-fires are vacuum critical. If you have them, does your car idle ok? I have to rev the engine to get the alternator to "spool up" the diodes at first or it does not charge. So I am wondering if these cause low vacuum too????
08-10-2003, 01:08 PM
#2
Safety Car
Re: March underdrive pulleys-who has 'em (Magnum '82)
im running the March under drive pulleys and have no ill side effects from them. Its a common thing to have to rev the engine a bit to "excite" the alt into charging. I cant think of any reasons why the under drive pulleys would effect engine vacuum. The low vacuum reading must be the cause of some other culprit.
08-10-2003, 03:15 PM
#5
Race Director
Re: March underdrive pulleys-who has 'em (flynhi)
No problems here either as far as vaccum. Same story about the alt especially with a load on it.
08-10-2003, 04:38 PM
#6
Racer
Thread Starter
Member Since: Dec 2000
Location: Wisconsin Rapids, WI USA
Posts: 289
Likes: 0
Received 0 Likes
on
0 Posts
Re: March underdrive pulleys-who has 'em (Magnum '82)
Thanks for the input everyone. I don't know for sure that I really do have a vacuum problem, I'm just trying to eliminate possible problems, and I thought this may have something to do with it. Now I feel ok with leaving these pulleys on and looking elsewhere. Thanks for the boost. :)
