Posted by Bob M on November 27, 2012 at 13:58:53 from (69.207.86.27):
In Reply to: Re: alternator posted by morris roessler on November 23, 2012 at 22:10:50:
That's pretty much how the 10SI alternator works - at startup the engine's gotta be run up until the alternator shaft is spinning 2,500 RPM or so for it to "turn on" .
My Super M with the 10SI alternator needs to be run up to 1/3 governor or so to get it to start charging; so does a buddy's JD A and 4430. Back in the 80's I owned several GM vehicles that needed to be "goosed" at startup to extinguish the charge light too.
If it really bothers you there are a couple fixes:
1 - Install a smaller pulley to spin the alternator faster.
2 - Swap the alternator you've got for one with a LOWER output rating. Most aftermarket rebuilds are 55 or 61 amp. Replacing it with 37 or 42 amp unit will begin charging at noticeably lower RPM. (It sounds counterintuitive, but that's how the 10SI family behaves....)
Myself I simply live with it. After a cold start I'll let my SM idle for a minute or so. I then slowly pull the governor until the idiot light goes out then idle it back down until ready to put it to work.
----
To your diode question you've probably got a 1N4004 or equivalent (it's pretty small!). But any diode rated for at least 100 PRV and 1.0 amp forward current will work.
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 - Ford Super Dexta - by Anthony West. The rusty blue tractor caught my eye as my truck zipped by the farm implement business. It looked so fornlorn amongst the lineup of newer equipment. But it was just the right size for my small farm. I stopped in and asked the proprietor for further information. "It's a 64 Ford Super Dexta", he said. "It's a tough little tractor, although it's a hard starter being a diesel and all." He did manage to get it running, compliments of a can of ether. Once started it putted along pretty good. It
... [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.
