Posted by Bob on April 19, 2017 at 08:45:34 from (64.255.159.192):
In Reply to: alternator issues posted by gary in neb. on April 19, 2017 at 06:33:27:
Automotive alternators are inherently self-current limiting and should be able to charge at max Amps all day long if there's adequate cooling air flow, so they shouldn't be dying from being loaded.
Run a new 8 or 10 GA wire from the output stud to to main starter solenoid stud where the (+) battery cable connects to eliminate the possibility there's a high resistance connection or an occasional "open" in the factory wiring. Alternators do not like those sorts of things.
You can leave the factory wiring in place, in parallel, so accessories are supplied with power as they were before.
While you're at it, run a "voltage sense" wire from the #2 alternator's terminal to the same stud at the starter solenoid.
Be SURE there's a resistor, an "idiot light" or a diode in the wiring from the ignition switch to the alternator's #1 "excite" terminal.
If wired WITHOUT any of those, the alternator will try to charge through that path, loading the diode trio and internal wiring in the voltage regulator.
That being said, a customer's GREEN 4430 has gone through two replacement 12SI alternators, we just installed the third, in less than 50 hours.
They have been lifetime warranty units from an autoparts chain who shall remain nameless (but was suggested by another poster to this thread).
The first two had stators that looked like they'd been just pulled out of a core and re-used without oven a good cleaning and a new coat of insulating varnish.
The last one we just installed appears to be all new except for the bead-blasted reused case, reman in china. We'll see how long this one lasts!
Upload one or more videos to your post. Photo filesizes should be less than 300K and Videos, less than 2MB. Formats allowed are gif, jpg, png, ogg, mp4, mov, and avi. Be sure to use filenames without spaces or special characters, and filetypes of 3 digits lower case.
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. [ About Us ]
Today's Featured Article - Restoration Story: Fordson Major - by Anthony West. George bought his Fordson Major from a an implement sale about 18 years ago for £200.00 (UK). There is no known history regarding its origins or what service it had done, but the following work was undertaken alone to bring it up to show standard. From the engine number, it was found that this Major was produced late 1946. It was almost complete but had various parts that would definitely need replacing.
... [Read Article]
Latest Ad:
1964 I-H 140 tractor with cultivators and sidedresser. Starts and runs good. Asking 2650. CALL RON AT 502-319-1952
[More Ads]
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.
