Alternator pulley
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Alternator pulley
So just recently I bought an 86 f150 with the inline 6 and the alternator was screaming when accelerating. Still puts out good voltage but I want to replace it. The double groove pulley is warped which I think might be the issue. Can you guys help with either a) finding an alternator with a double groove pulley or b) finding a double groove pulley for it? It is the 60 amp alternator with the internal regulator. Thanks
Moderator
Joined: Jan 2001
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From: Virginia
I looked them up on rockauto, and not all but most of the 60 amp alt's come with the double pulley. They have one for $28 but it's the external regulator. They have internal also. You need to figure out what you have.
P.S. I see you said you have a internal regulator alt. Let's keep looking.
P.S. I see you said you have a internal regulator alt. Let's keep looking.
Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
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From: Simi Valley, CA
So just recently I bought an 86 f150 with the inline 6 and the alternator was screaming when accelerating. Still puts out good voltage but I want to replace it.
The double sheave (groove) pulley is warped which I think might be the issue. Can you guys help with either a) finding an alternator with a double groove pulley or b) finding a double sheave (groove) pulley for it? It is the 60 amp alternator with the internal regulator. Thanks
The double sheave (groove) pulley is warped which I think might be the issue. Can you guys help with either a) finding an alternator with a double groove pulley or b) finding a double sheave (groove) pulley for it? It is the 60 amp alternator with the internal regulator. Thanks
C5AZ-10344-L .. Double Sheave Alternator Pulley - 2.84" diameter (Motorcraft GP-494) / Obsolete
NOS PARTS LTD in Waxahachie TX has 1 = 972-937-2201.
GREEN SALES CO. in Cincinnati OH has 1 = 800-543-4959.
CARPENTER NOS OBSOLETE PARTS in Concord NC has 6 = 800-476-9653.
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Joined: Jan 2001
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From: Virginia
Ok I see your problem, most of the alternators that come with dual groove pulleys are the external regulator type. The internal require a pulley change or they may even come with a serpentine pulley.
I guess you know your alternator type is prone to failure/catching fire at the wiring plug?
I guess you know your alternator type is prone to failure/catching fire at the wiring plug?
Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
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From: Simi Valley, CA
Ford truck parts catalog makes no mention of internal/external regulator inre to the alternator pulley.
See post #4.
See post #4.
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Moderator
Joined: Jan 2001
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From: Virginia
But, the alternator he is looking for is considered to be junk, he needs to entertain the idea of a swap to another type.
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Lead Driver
Joined: Apr 2007
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From: Houston
The preferred alternators is either the 1G externally regulated and if you want more low rpm charge then an internally regulated 3G is your best alternative.
I will be changing my '82 F150 from a 1G to a 3G just for the better low rpm charge. I don't like how my blower motor on my AC slows down when I come to a stop and idle.
Moderator
Joined: Jan 2001
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From: Virginia
That's why you will see notes on some of the alternators that a new harness plug is required to be installed for a full warranty, or some other mention about a plug.
This alternator may be your only choice if you are not equipped to change stuff around. My ranger had one of these alternators, and instead of spending money on a new one, I converted mine to a GM alternator. I did have to drill the hole bigger on the alternator, and modify the adjuster bracket some to make it fit.
pedant
Joined: Jan 2008
Posts: 23,576
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From: EXTREME southwest CT
All the factory double sheave alternator pulleys I've seen use the second belt to drive the A.I.R. pump.
Finding a crank pulley that allows you to have two alternator belts, and still drive the water pump and power steering is going to be the issue
Crank sheaves must be the same size and not in the same plane as those driving other accessories.
Finding a crank pulley that allows you to have two alternator belts, and still drive the water pump and power steering is going to be the issue
Crank sheaves must be the same size and not in the same plane as those driving other accessories.
FTE Legend
Joined: Jul 2010
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From: Northeast, OK
I just posted this on another thread:
pedant
Joined: Jan 2008
Posts: 23,576
Likes: 38
From: EXTREME southwest CT
I don't find the alternator pulley is that big an issue.
My truck has dual belts driving the water pump and Saginaw steering pump.
If I could find a *four* groove crank pulley with two pair of sheaves that had the same circumference what plane would I mount my alternator?
My truck has dual belts driving the water pump and Saginaw steering pump.
If I could find a *four* groove crank pulley with two pair of sheaves that had the same circumference what plane would I mount my alternator?