(800) 853-2651
SHOP NOW

Farmall M Block Drain Plug

S

SadFarmall

Member
I bought a 1947 Farmall M and a 1940 Farmall H. Both of those tractors have a plug to drain coolant from the block on the near side of the motor.
My original Farmall M is FBK 2486 X3A and has no drain plug at all. Was this standard on earlier Farmall M tractors? Also, how do I drain the block of coolant? Thanks in advance,
SadFarmall
 
(quoted from post at 01:55:40 06/14/12) I bought a 1947 Farmall M and a 1940 Farmall H. Both of those tractors have a plug to drain coolant from the block on the near side of the motor.
My original Farmall M is FBK 2486 X3A and has no drain plug at all. Was this standard on earlier Farmall M tractors? Also, how do I drain the block of coolant? Thanks in advance,
SadFarmall
Click to expand...

I thought all of them had drain plugs. Could be wrong though as I have never been that close to any of the real early '39s.

Are you sure the drain plug is not just broken off flush with the block?
 
That's the hole that's smack in the middle of the left side of the block right?

What size is that hole? 3/8 NPT, right?
 
My 39 M has the drain plug and is S#2249. Same # on motor and also stamped on top or right side rail just behind radiater. All origional. Buck
 
Well, that is the problem. There is no drain hole on my tractor. The plug is not broken off unless someone has done a brilliant job of polishing it flat and leaving absolutely no trace. I'll take a photograph today and post it.
The drain hole on the other two tractors is 3/8" British Standard Pipe Taper, which surprises me for an American built machine. The radiator drain tube is also BSPT.

SadFarmall
 
This is from memory from a long time ago but I think 3/8 BSPT is 19 threads per inch and the NPT is 18 threads per inch. Another difference is the thread profile, 55 degree on the BSPT and 60 degree on the NPT.

As always take my memories with a grain of salt as the memories that I am most sure of, never happened.....
 
You must log in or register to reply here.

Similar threads

A
Farmall M carb drip plug
Replies
6
Views
424
the tractor vet
T
A
Drip Plug is dripping
Replies
4
Views
560
chuck machinist
chuck machinist
T
How do I drain the radiator and engine block?
Replies
6
Views
514
caterpillar guy
C
R
Farmall 450D (gas/diesel) Spark Plug Size
Replies
4
Views
363
rustred
rustred
M
Farmall m oil leaking down manifold and miss on 3rd cyli
Replies
10
Views
646
13fx
1
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