Welcome! Please use the navigational links to explore our website.
PartsASAP LogoCompany Logo Auction Link (800) 853-2651

Shop Now

   Allis Chalmers Case Farmall IH Ford 8N,9N,2N Ford
   Ferguson John Deere Massey Ferguson Minn. Moline Oliver

Discussion Forum
:

Diode Part # Please

Welcome Guest, Log in or Register
Author 
robert

09-10-2001 11:39:31




Report to Moderator

Can anyone tell me the part # of the type diode used for the 12v conversion

Thank you




[Log in to Reply]   [No Email]
Phil (AZ)

09-10-2001 21:07:59




Report to Moderator
 Re: Diode Part # Please in reply to robert, 09-10-2001 11:39:31  
Robert, The 1n4003 (3 amp) should work but some have used an 1n4001 (1 amp). Band (cathode) goes to Alt P1. Best solution and no pain.

JMHO



[Log in to Reply]  [No Email]
NO . . . Dell (WA)

09-10-2001 15:44:17




Report to Moderator
 Re: Diode Part # Please in reply to robert, 09-10-2001 11:39:31  
Robert..... ...many diodes will work and many manufacturers have different numbers. You buy shoes by size and style, not manufacturer number.

You will not get this part at the local autoparts house.

Tell your radio parts person, You need a 50 PIV 10 Amp GP diode.

Any diode that meets or exceeds this specification will work providing you can figger out how to mount it. And then you need to know which end to hook to the #1 terminal and how to identify it. Not all diodes are identified the same way. Those that are electrically challenged will fail this test.

If'n yer so challenged, I recommend a 10 ohm 10 watt power resistor because it doesn't matter which end is connected to the #1 terminal as long as the other end is connected to the ignition switch on terminal. OR the ever popular, nobody understands "side marker lamp", which also does not care which end is connected to #1 terminal as long as the other end is connected to ignition switch on terminal. And it will also act as an "idiot light".

Otherwize you will never be able to turn off your engine because the alternator will backfeed battery voltage to your ignition coil with the ignition switch in the "off" position. Such are the mysterys of electronics..... ...Dell

[Log in to Reply]  [No Email]
DavidO

09-11-2001 10:40:09




Report to Moderator
 Re: Re: Diode Part # Please in reply to NO . . . Dell (WA), 09-10-2001 15:44:17  
Of all Dell's post that I have read, appreciated, and admired, this is the first one that I can't totally agree with. Dell, why a 10 Amp diode? One amp should do, 3 amp is overkill. A 10 amp diode is relatively expensive and relatively large. This is not intended as a criticism. I am still a big fan and appreciate all of your sage advice, including the "humor". Thanks for responding to so many questions.

[Log in to Reply]  [No Email]
DavidO

09-11-2001 10:39:08




Report to Moderator
 Re: Re: Diode Part # Please in reply to NO . . . Dell (WA), 09-10-2001 15:44:17  
Of all Dell's post that I have read, appreciated, and admired, this is the first one that I can't totally agree with. Dell, why a 10 Amp diode? One amp should do, 3 amp is overkill. A 10 amp diode is relatively expensive and relatively large. This is not intended as a critism. I am still a big fan and appreciate all of your sage advice, including the "humor". Thanks for responding to so many questions.

[Log in to Reply]  [No Email]
Dan

09-10-2001 19:08:20




Report to Moderator
 Re: Re: Diode Part # Please in reply to NO . . . Dell (WA), 09-10-2001 15:44:17  
Sorry this is so long.

Dell or anyone, I just converted my 8n to 12v and have a question. I followed the directions from Brian in S. IL. 's web site and used the side marker lamp and his wiring diagram. Worked like a champ except when I start it up, the ammeter needle pins all the way to the right, then settles back down. I ran it like that for a couple days when I was talking to a guy at my local NAPA and he told me about a connector that plugs into the P1, P2 terminal that he sells people when they convert to 12v. It plugs into the terminal on the alternator with one wire going to the Bat terminal and a small resistor going from P1 to P2. I bought it and he told me if it doesn't start charging right away, jump across the resistor to excite the alternator. The problem is I have to do that every time I start it up. It isn't self exciting with the plug thingy for some reason. I don't know if I am explaining this very well, but I had to try. Thanks.

Dan

[Log in to Reply]  [No Email]
[Options]  [Printer Friendly]  [Posting Help]  [Return to Forum]   [Log in to Reply]

Hop to:


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. [ About Us ]

Home  |  Forums


Copyright © 1997-2023 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