(800) 853-2651
SHOP NOW

alternator charging

A

Anonymous-0

Well-known Member
Im installing a Cat 3208 in a machine and have no space to install the alternator on the front side of the engine, can you install it in front of the engine with the pulley facing the motor? The alternator will be turning opposite direction, will it still charge?
 
It won't matter. That is how MM did it on some of their tractors. Alternators can spin both ways.
 
What make of alternator?

It makes no difference to the actual charging mechanism, but the pulley MAY fall off!

Bosch and Motorola/Prestolite, for example, typically have their pulleys keyed in place.

Most Delcos ans many othere have no key in the pulley (or a provision for one), just depend upon the pulley turning in the direction that tightens the nut.

If you run that type of alternator the opposite rotation the load on the pulley will always be trying to work the nut loose. I would GUESS a little LocTite to secure the pulley and nut in place would solve the POTENTIAL problem.
 
You might look for a reversed rotation fan, because the reversed fan on the alternator may not pull air through it as well.

Gerald J.
 
Unless he's got a BIG electrica load, the alternator will be fine with the stock fan.
 
On one of my Oliver / Chevy V8 conversions, there was no room to mount the 10 SI alternator in the normal position. I mounted it facing the engine, turning backwards. CCW. Never a problem with it even running a CW rotation fan in CCW direction. Have put over 6000 hours on that tractor that way. Not a toy, this was one of my main farming tractors.
I never worried much about poor alt cooling fan operation because the electrical load is pretty light (just lights and ignition, no AC, alt runs cool enough to keep a hand on it.)
No alternator problems and the pulley has never screwed itself loose.
 
(quoted from post at 09:38:19 06/25/09) It makes no difference to the actual charging mechanism, but the pulley MAY fall off!

Most Delcos ans many othere have no key in the pulley ), just depend upon the pulley turning in the direction that tightens the nut.

If you run that type of alternator the opposite rotation the load on the pulley will always be trying to work the nut loose. .
Click to expand...

Absolute nonsense Every Delco I've ever seen on a car/ lite truck, and I've torn down a lot of them, had a right hand thread nut with no key, and last time I looked, cars and truck engines turned CLOCKWISE.

What may or may not make a difference is fan direction. Things like Corvairs had a reverse pitch alternator fan, as the generators and alternators on those ran CCW. However, if your tractor doesn't have much in the way of load, you'll probably get by fine.

We once converted an old Allis M crawler, reverse drove the alternator off the mag drive. Worked just fine.
 
"Absolute nonsense Every Delco I've ever seen on a car/ lite truck, and I've torn down a lot of them, had a right hand thread nut with no key, and last time I looked, cars and truck engines turned CLOCKWISE."

WHAT is "absolute nonsense" about what I posted?

YES, alternators are commonly driven clockwise, and if you stop to figure it out, the RH thread nut is in contact with the clockwise-rotating pulley, having a tendency to keep it tight, rather that to loosen it.

What's nonsense about that???
 
(quoted from post at 23:00:46 06/25/09) "Absolute nonsense Every Delco I've ever seen on a car/ lite truck, and I've torn down a lot of them, had a right hand thread nut with no key, and last time I looked, cars and truck engines turned CLOCKWISE."

WHAT is "absolute nonsense" about what I posted?

YES, alternators are commonly driven clockwise, and if you stop to figure it out, the RH thread nut is in contact with the clockwise-rotating pulley, having a tendency to keep it tight, rather that to loosen it.

What's nonsense about that???
Click to expand...

What you describe only happens in Obamma land. What I described is the real world, the world in which you could leave the nut completely off and the pulley would still slip. In fact, you could have one of the rare reverse rotation marine engines and your tractor would STILL be in reverse. The only way to change this odd happenstance is to change the rear wheels side-to-side so that the traction tires face the opposite direction.


Ok, you got me. I was thinking of the comparison to Corvairs. They DO rotate the oppostite direction, but they STILL USED a right hand thread nut and no key. The fact is that if they are properly tightened, they will not slip. Part of this proof is in the activity I used to engage in--drag racing. The incredibly fast change in engine RPM's up and down has not resulted in a rash of loose Delco nuts over the last 40 some or whatever years.
 
I've seen a couple come loose over the years, even in normal rotation. One was a Delco installed on a Deere 4630 by an official dealer mechanic. He apparently did not get it tight enough and it rattled off and got flung the belts/fan. Sounded like the operator needed a change of shorts after that was over!
 
You must log in or register to reply here.

Similar threads

L
Ford 1910 will not charge
Replies
0
Views
87
lonnie77
L
J
International 786 charging help
Replies
15
Views
700
used red MN
U
R
Alternator Confusion, Positive Ground
2
Replies
29
Views
2K
used red MN
U
T
Replacing generator on Super C with alternator
Replies
3
Views
229
used red MN
U
super99
Alternator conversion not working
2
Replies
35
Views
2K
Hobo,NC
Hobo,NC
Tractor Parts Tractor Manuals

We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today.

Copyright © 1997-2024 Yesterday's Tractor Co.

All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.

Yesterday's Tractors - Antique Tractor Headquarters
Website Accessibility Policy

Back
Top