Alternator pulley question
10-18-2002 | 11:19 AM
#1
Thread Starter
Registered
Joined: Mar 2001
Posts: 2,558
Likes: 1
From: ohio
Alternator pulley question
Anybody know of a deeper pulley for a Mando Alternator? I keep loosing the belt off mine over 5000 rpm and the belt tension and alignment is good but the belt doesnt bury into the pulley on the alternator like it does on the crank and water pump pulleys. Is it possible to convert a mark 4 set up to a serpentine belt? I really dont have the cash to put all the fancy colored billet pulleys on and dont have the time to build my own.
10-18-2002 | 06:40 PM
#2
Toxic FORMULA
Joined: May 2002
Posts: 4,238
Likes: 1
From: pitman nj
For what Merc would want for the pulleys , it would probably be cheaper to buy those expensive billet pulleys. And besides , you may get away with only buying one , for the alterator
I have also considered the surpentine route for mine , just for the simplicity and ease of changing the belt
I have also considered the surpentine route for mine , just for the simplicity and ease of changing the belt
10-18-2002 | 07:49 PM
#4
Thread Starter
Registered
Joined: Mar 2001
Posts: 2,558
Likes: 1
From: ohio
Its right on the money as far as alignment. I tension it so I have about 1/2" deflection on the long leg (without pushing too hard). It just seems that the alternator pulley isnt as deep as the others for the gaterback belt im using now.
10-18-2002 | 10:20 PM
#6
Charter Member #232
Joined: Oct 2000
Posts: 18,417
Likes: 6
From: Carlisle, MA USA
You can also get a thinner belt. You want the belt to sit just under the top of the pully at max!! Just make sure that the thinner belt is not sitting in the bottom of the other pulleys. Remember if you get a narrower belt you will need it to be a little bit shorter.
Jon
Jon
__________________
Put your best foot forward!
Put your best foot forward!
10-19-2002 | 12:49 AM
#7
Registered
Joined: Feb 2001
Posts: 538
Likes: 0
From: Portage,IN
I use a 7480 Gates XL 11A1220 belt with no problems.
Gates belts have a lifetime warrenty.
I had a impellar belt snap on me and
my local parts dealer replaced the belt at no charge.
As said before the belt needs to be pretty tight on the
Mando alternator.
Hope this will help you.
Gates belts have a lifetime warrenty.
I had a impellar belt snap on me and
my local parts dealer replaced the belt at no charge.
As said before the belt needs to be pretty tight on the
Mando alternator.
Hope this will help you.
10-19-2002 | 08:25 AM
#8
Thread Starter
Registered
Joined: Mar 2001
Posts: 2,558
Likes: 1
From: ohio
I had snaped a Napa belt that fit into the pulley better but it nearly cost me the engine since it drives the circ pump too. I bought the gaterback because it is supposed to be stronger but now its throwing off at high rpm. Ill ty the gates A belt. Thanks for the suggestions.
Tom
Tom
10-19-2002 | 10:04 AM
#9
Charter Member #232
Joined: Oct 2000
Posts: 18,417
Likes: 6
From: Carlisle, MA USA
One other thing to check is for rust on the pulleys and make sure that a pulley is not warped. both these things can cause that type of crap to happen
__________________
Put your best foot forward!
Put your best foot forward!
