(800) 853-2651
SHOP NOW

IH 424 unknown part broken

S

sengelman

New User
Hi guys, new to the forum. I just purchased an IH 424 (1966) gasoline, my first tractor. I brush hogged a little bit, and when I put it away, I had gas overflowing into the carb, flooding it. I need to replace a part, but I can't figure out what this piece is called, so I can't figure out how to purchase it. I have a friend troubleshooting with me, and we have decided the part that is circled in green is broken, and connects to the fuel shut off on the side of the carb, which we think is causing it to flood out. Can you guys help me figure out what this is called and where to order it? Look at the attached photo, and the piece that is highlighted with the green boxes is what I want to replace. Thanks for any help! A link to the picture is here http://imgur.com/LFtctza Thanks!
a197141.jpg

Untitled URL Link
 
That is a ballast resistor and should not be attached to the fuel system in any way. The carb should not flood out. Disassemble and clean your carb, and check the float to make sure that it is not filled with fuel. You probably have either a gunky or worn needle, or you float is no longer floating like it should. Also, shut the fuel off at the sediment bowl every time after you shut it down. Please note that this is the Case forum, not the IH forum.
 
I'm really sorry, I'll get this posted over there, I opened the wrong forum in a new tab it seems.

As far as we can tell, the fuel shut-off needle has a wire that runs directly to this part, hence our thought that the two were related. The carb has been thoroughly cleaned, new gaskets put on, and a new float. You're positive this has no relationship?
 
That is definitely a ballast resistor, which is usually used to drop the battery voltage from 12V to 6V for the entire ignition system. You should be able to get or order a new one at a good auto parts store. Just ask for a "ballast resistor," and be prepared to tell them the resistance value of the resistor, which is usually printed on the ceramic. You can also check the resistance using a multi-meter once you remove it (assuming that only the insulator is broken and not the resistor itself). If your tractor has a fuel shutoff solenoid on the carb, then it is there to prevent run-on when the ignition is switched off. It should not cause the carb to overflow. Is it possible that the float is rubbing on the side of the carb on the inside and not allowing the float to close the needle?
 
I think some of the 454 up series had a carb that was controlled somewhat electrically but that ain't your problem on this one. The part you have circled is a resistor. You need to be sure exactly what is happening but the carb and the electrical system are separate.
 
That ballast resistor will have switched 12 volts at one end of it, they probably grabbed that to power the fuel solenoid and is the reason you see that connection there.
 
Mr. Mikesell covered it pretty well but i would further explain.........The power switch turned to on gives the coil power thru the ballast resistor. And you need power to the carb shut off selenoid which in your case is coming from the feed to the coil rather than run a seperate wire from the switch. The fuel shut off is to stop flooding after power is off so if yours is still flooding the selenoid is bad or has dirt holding it open. As he said you Still have carb issues with the float and or needle and seat. Not hard fixes, just needs a little tinkering...............chuck.
 
All, thank you for your comments, but I've moved this thread over to the proper forum, with additional information and photos for making sure we're all on the same page. Please review it over there and CONTINUE HELPING ME! THANKS!
 
You must log in or register to reply here.

Similar threads

H
IH 424 front weights
2
Replies
25
Views
757
hoosier43fan
H
P
case Vai fuel line
Replies
10
Views
330
Pnettis
P
D
960...If it Ain't Broken
Replies
5
Views
467
Sean in PA
S
B
411b New to me questions
2
Replies
32
Views
938
Joe (Wa)
J
Jarrod32
JD M stalls
Replies
5
Views
237
Jarrod32
Jarrod32
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.

Copyright © 1997-2024 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

Back
Top