(800) 853-2651
SHOP NOW

A couple of B questions

B

Bkpigs

Member
I have a '41 Farmall B ( I think a '41).

Anyhow, it has no temp guage. Where would the probe be installed (in the engine block) and where do you guys have the guage mounted to?

If I hold my hand over the breather, I get cool air flowing out of it. I first thought it was just the pressure from the cylinders from moving up and down but there is little to no suction. Stuck rings? It does run a little rough. I was thinking if it were a stuck ring then it should be somewhat warm from the exhaust gases passing by, but then again if it is loosing that much compression and not firing, then there would be no warm air. What's your thoughts?

Thanks everyone, I am sure that there will be more to come,
 
My thought is that you're overthinking at this stage. In the 1939-1947 run of the the A/B/BN the motor was a thermosiphon cooling system, with never a thought given to a a temp gauge. Not entirely accurate - there was a gauge and installation available if you really felt you needed one, but such indulgence was not oten exercised. Thermosiphon, ingeniously if not devilishly simple, a fan and radiator size coupled with the older-than-the-Greeks concept of convection for cooling. So efficient that the temp gauge was an option.

Quite simply, if they were clean inside, they didn't overheat, no matter how hard you worked them.

Cool air flowing OUT of the breather??? Balderdash. You may feel a draft there (doubtful -- don't confuse the draft coming back from the engine fan . . . ), but if the motor is actually running, any cool draft at that point is air flowing in, not out.

Trust me, if you are holding your hands over the breather cap, any flow of air that you feel is NOT blowing out of the motor.
 
Just to add to what Scotty had to say, tractors with shutters originally set up to run on distillate, I believe, will have a temperature gauge mounted somewhere down low on the engine. I would have to go out and look to tell you exactly where and that just ain't happenin right now. Maybe someone else can jump in on that.
 
And IF there actually IS air flowing out of the breather cap, it would be visible in the form of a grey/white smoke. I'm going with the previously mentioned "airflow from the fan" theory...
 
The Farmalls A, B and C, if they were fitted to burn kerosene or distillate would have a radiator shutter, a heat controlled manifold with heat shield and a temperature gauge as well as the gasoline starting tank. The temperature gauge, and radiator shutter, were also available for gasoline tractors as an extra.
The temperature gauge was mounted above the governor and the probe was inserted to the top of the water inlet neck at the bottom left (from the back) of the engine. This neck connected to the bottom of the radiator. The probe was therefore always sensing the water at is coldest location. The flow was by thermo-syphon, as there was no water pump. The water pump cam with the Super C
 
There is no smoke coming out, which I thought was odd for having the amount of air that I thought was coming out of there. Guess you guys are right, maybe it is just coming from the fan and I am mistaking it for coming out of the breather.
 
I had the understanding that the temp guage was an option not standard. I would like to put one on mine, I worry everytime I run it just because I can't see its temp.
 
Correct, they were optional. You could put one on it. The installation is as Athol Carr describes above. For basic parts you'd need the gauge and mounting bracket. On the probe end, you'd also deed and NPT fitting to thread it into the hole you will have to tap and thread into the inlet neck. Many of those necks have a wide flat spot in them to allow for such a hole to be made.

But you may wind up with the opposite problem, wondering whether the gauge is working. That 113/123 block is slow to warm up and with the probe on the lower end, you'd have to work her hard and long to ever see that needle move much.
 
There will be air coming out of the breather whenever the engine is running. Even a new engine with fully seated rings will have some blowby. The reason you don't fell any pulses is because you have two pairs of pistons that are always moving in opposite directions so they cancel out any pulses.
 
You must log in or register to reply here.

Similar threads

D
A couple of Questions 3500
Replies
13
Views
371
Sean in PA
S
D
Y u no bleed Mr injector nozzle 3?
Replies
7
Views
446
560Dennis
560Dennis
J
A couple questions
Replies
2
Views
136
kpratt
kpratt
H
A couple of IH444 questions.
Replies
5
Views
341
mustangmarty
M
W
David Brown 780 blowby
Replies
3
Views
315
woo003
W
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