Posted by S.B.Hahn on February 01, 2013 at 22:21:50 from (74.232.45.131):
Hi there. My granddad recently got his old Ford 4000 repaired after the head gasket blew. He had the guy repairing it put in some new gauges(none of the old ones worked). The guy took out the original gauge panel, and put in an ugly piece of black plastic with only an oil pressure and engine temp gauge.
I'm intending to put the original gauge panel back in after making some modifications to it.
Anyway, my question is about the tachometer. The guy who worked on the tractor replaced the generator (which also didn't work) with an alternator, one made for a Chevy truck, I think.
Since the tractor doesn't have enough RPMs for the alt., he put a smaller pulley on it. Does anyone know if I can install a tach drive on this particular alt., and whether or not the RPM reading will be accurate, with the smaller pulley (which I think makes the alt. spin faster than the engine)
The alternator is a "Delco Remy BG" stamped with the numbers 21201118, and bearing a sticker with 7127SW3 on it. It is a single wire, and starts charging once the tractor is revved up one good time (it doesn't stop until the tractor is off, according to the "mechanic"). It has a built in charge regulator, which keeps it from overcharging the battery.
The tractor is a 68 model Ford 4000, 4 cylinder.
And one other thing, I don't necessarily need an rpm log (the thing that looks like the mileage recorder in a car, or something like this: [000243420}).
What I want is a needle gauge that'll tell me my current RPM's.
I also want to know if the different sized pulley (different from what was on the generator), and by consequence, the alternator's differing speed from that of the engine, will have any effect on the accuracy of an RPM gauge (tachometer).
Any help is greatly appreciated, thanks in advance
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 - Identifying Tractor Noises - by Curtis Von Fange. Listening To Your Tractor : Part 3 - In this series we are continuing to learn the fine art of listening to our tractor in hopes of keeping it running longer. One particularly important facet is to hear and identify the particular noises that our
... [Read Article]
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.