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

Ford 9N, 2N & 8N Discussion Forum

12volt conversion for Dell

Welcome Guest, Log in or Register

05-20-2004 06:42:11

Report to Moderator

Sorry it took me so long to get back with you on this subject. The alternator looks as if it is a one prong. The alternator is an AC/Delco. Plus, when I start to use my brush hog, my 8n starts to back fire and sputter. Could this have something to do with the wireing? The tractor acts fine when its just sitting there ideling. Your input is very much appreciated.

[Log in to Reply]   [No Email]
E. Ray

05-20-2004 09:19:01

Report to Moderator
 Re: 12volt conversion for Dell in reply to KeithL, 05-20-2004 06:42:11  
Keith..... ...You posted on 5/16/04 that your tractor continued to run after you turned the ignition off. Are you still having this problem?..... ....E. Ray

[Log in to Reply]  [No Email]

05-20-2004 12:23:05

Report to Moderator
 Re: Re: 12volt conversion for Dell in reply to E. Ray, 05-20-2004 09:19:01  
E.Ray, yes the engine still runs when you turn the ignition off. I can't even idle the engine down to cut it off. The engine sound like an airplane taking off.

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

05-20-2004 14:18:56

Report to Moderator
 Re: Re: Re: 12volt conversion for Dell in reply to KEITHL, 05-20-2004 12:23:05  
Keith..... ....listen up! I flunked mindreading, just ask my ex-wife.

The reason you can't turn yer engine off is because you don't have an "isolating device" scheme between the P-1 "excitation" and the ignition switch "ON" terminal which conviently is connected to the ignition coil. The gutts of the 3-wire Delco 10-SI alternator feedbacks enuff volts to run yer ignition coil iff'n ya donnna "isolate" it.

1) General Motors/Chevy been using their dashboard idiot light to slowdown the backvolts and weaken the sparkies so the engine stops when you turn the ignition key off. You can do the same, many use a trailer clearance light that already have wires attached so its eazy to wire in. You don't have to mount the improvized "idiot-lite" so you can see the bulb iff'n you don't want.

2) Others use a high-tech "diode" to block the back volts. Ya gotts a 50/50 chance to install it correctly, iff'n incorrect engine will continue to run so just re-wire the diode the other way around. Simple, eh?

3) Others use a momentary push-button "excite" switch to gitt the alternator runnin' 'cuz thats all that is necessary, a momentary surge of volts to excite the alternator. Once excited, it will output until engine ignition is turned off.

4) Others use a NEW ignition switch that has a RUN and ACCESSORY outputs screw terminals. RUN for the ignition coil, ACCY for the alternator P-1 "excite" function.

I know of at least 3-other ways to "isolate the excite". The important thing to realize is you can't have both the ignition coil and the alternator excite directly connected together or you'll NEVER gittchur engine to stop runnin'.

Bettcha you don't know that yer alternators P-2 "remote volts sense" is supposted to be directly connected to the alternators BIG BATT STUD output, do you? Iff'n the P-2 sense isn't connected to the battery charge line, it won't know when or how much to charge the battery, so it will by default, charge the max and boil out all your battery acid water.

And I still DONT THINK yer engine sputterin' and backfiring is a function of your 12 volt wiring conversion UNLESS yer runnin' a real 12 volt ignition coil thru a 12 to 6 volt converter resistor from yer ignition switch. You do that and you will diffinately have weak sparkies and sputterin'..... ..respectfully, Dell, a 12 volt advocate for the right reasons

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

05-20-2004 07:48:25

Report to Moderator
 Re: 12volt conversion for Dell in reply to KeithL, 05-20-2004 06:42:11  
Kieth..... ...I had to go back 3 pages to find yer original post 'cuz I'z gotts CRS!!

You have a 52 8N, that means a roundcan coil and sidemount 5-nipple distributor. Sputterin' and poppin' when you load yer engine with brushog is a pretty good sign that yer sparkies are miss-wired. Check yer firing order. 1,2,4,3 CCW. (probably gotts 4&3 swapped)

These ol' N-Engines are so good, they'll run at idle on 2-cylinders and you'd think nuttin was wrong.

As for your 12 volt conversion wiring, I don't think there is anyrelationship between it and the "sputtern and backfirin" you report. Unless yer 12 volt battery is so discharged from a bad alternator thats ya gotts weak sparkies. But iff'n yer battery was that weak, you'd be complaining about hard to start..... ....Dell

[Log in to Reply]  [No Email]

05-20-2004 06:47:11

Report to Moderator
 Re: 12volt conversion for Dell in reply to KeithL, 05-20-2004 06:42:11  
1 wire jobs are 'deceptively' simple... I don't like them.. I like the 3 wire setups.

Sputtering under load could be lotsa things. Could be weak spark.

Have you done the 'standard' tests?

I'm not up on backfireing causes.. or afterfire.. so I'll let one of the other guru's step in and answer.


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

Hop to:

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