|
Tractor Talk Discussion Board |
Ammeter fluctuation?
[ Expand ] [ View Replies ] [ Add a Reply ] [ Return to Forum ]
Posted by MF Poor on February 12, 2007 at 04:42:53 from (66.64.181.106):
Last summer I helped a friend sort out a wiring fiasco on a 135 Massey he bought. Previous owner ripped the wiring to shreds when it caught a tree limb while bush hogging (so we're told). He rewired (wrong) it in the field. End result was a severe overcharging problem (18+v at battery) Prior owner sold it after battery blew up. (we found 18V going to "field" terminal on alt. before rewire) Everything was smoked. We installed a new Optima battery, new alternator. (Delco external reg) Voltage reg, ammeter (Autometer, from NAPA) and rewired to specs in manual. (also matched exactly to my 150MF) Now it works like it should EXCEPT for one issue. When you start up, everything looks good. Then throttle up a bit 'till reg excites alternator. Good so far. (Reads 14.9v at battery running, 12.8v static. matches specs in MF tech manual) Throttle up beyond 1500 rpm and ammeter starts dancing back and forth between charge and discharge. Cut engine back and it stops, showing slight charge. My question is, would engine vibration cause this? Is there significant difference in quality of gauges? I've seen Glyserine (sp?) filled gauges to operate in high vibration environments. Is there such an animal in ammeters? Owner is content that everything is working fine. I'm not, and I'd like to know for future reference. TIA
Replies:
Home
| Forums
Today's Featured Article -
Old Time Threshing - by Anthony West. A lovely harvest evening late September 1947, I was a school boy, like all school boys I loved harvest time. The golden corn ripens well and early, the stoking, stacking,.... the drawing in with the tractors and trailers and a few buck rakes thrown in, and possibly a heavy horse. It would be a great day for the collies and the terrier dogs, rats and mice would be at the bottom of the stacks so the dogs, would have a busy time hunting and killing, all the corn was gathered and ricked in what we c
... [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]
Copyright © 1997-2025 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 HeadquartersWebsite Accessibility Policy |
|
