(800) 853-2651
SHOP NOW

300 starter/wiring problem

Z

Zachary Hoyt

Well-known Member
I finished putting on all of the new wires today and got the 300 started with the starter for the first time. Everything seemed fine except that after about a minute of the engine running I heard an electric motor sound start up and realized the starter had begun to turn again. I was surprised and I immediately pushed in the ignition switch. The tractor engine stopped quickly but the starter kept running till I opened up the battery box and yanked the - cable off the battery. I am wondering if I wired it wrong somehow or if I need a new relay or start button. The relay has two small terminals on it, one marked S and one marked I. I ran a wire from the ammeter to one side of the start button and one from the other side of the start button to the S terminal. I ran a wire from the I terminal to the coil side of the voltage resistor. Another possibly relevant factor is that the starter drive got stuck twice before I was able to start the engine and I had to loosen the bolts and jiggle the starter to get it to pop back in. Any advice will be much appreciated.
Zach
a80399.jpg

a80400.jpg
 
It is wired correctly, the relay on the starter is sticking. A Ford relay from 1957 through the mid 70s almost all have the same connections. Be sure to hook the battery wire to the terminal closest to the S small terminal. Jim
 
Thank you very much. As it is now the battery is connected next to the I terminal, but that was how it was when I got it. There is a copper or brass strip that goes from the other terminal to the starter. I have a spare relay that I could put on, but it only has one small terminal, which I presume must be for the S wire. Would it be okay to cap off the wire from the resistor and try that relay? I really appreciate your help.
Zach
 
There is only two things to go wrong, bad solenoid or a bad switch. The only time I found a bad starter switch, it was a push to start button, and it would stick in.
 
I went to ebay and found the Ford relays you described and have ordered one. I will just bend the metal strip so that it will connect to the terminal next to the I terminal. Thank you very much.
Zach
 
Try wiring the one on it with the Bat term next to the S!! It might just work well. If the original had no connect to the coil from the I terminal, it would not be an issue. You can use the S only relay. Jim
 
Thanks, I'll give that a try. I'm borrowing the battery out of the H, someday this week I hope to get to town and get the 300 its own battery.
Zach
 
It sounds like you have your problem figured out.

I would suggest using different colored wires for different circuits. I am not a member of the correct police, but it makes it easier for me to see which circuit is which.

Greg
 
You must log in or register to reply here.

Similar threads

D
Repairing glow plug/starter switch wiring farmall 504
Replies
18
Views
425
BarnyardEngineering
BarnyardEngineering
J
ih 656 starter stuck after ignition off
Replies
5
Views
269
wore out
wore out
B
starter solenoid
Replies
18
Views
906
used red MN
U
Janicholson
Re: 450 wiring diagram
Replies
0
Views
122
Janicholson
Janicholson
R
Farmall 504 electrical/starting issues
Replies
11
Views
737
RTNystrom
R
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