(800) 853-2651
SHOP NOW

More F12 Gauge Thoughts

S

SadFarmall

Member
I found a French chap today, who says he can work magic on the original temperature gauge for my F12, so I will try that first. He is also going to check the oil pressure gauge.
These things lead to me to consider:
1. The temperature gauge bulb is locating where it will do least good - in the bottom of the radiator. It does not really look like the head has many (if any) suitable places to drill a hole for a temperature gauge sender unit…
2. The location of the oil pressure gauge on F12 tractors is bad. The gauge is invisible from the driver's seat, unless you lean over toward the off-side rear wheel. When the tractor is stationary, that is all very well. When 54" steel wheels with 4" lugs are rotating, it is not so nice. Is the oil pressure gauge set under the fuel tank to keep it out of the way of a driven belt from the pulley on the off-side of the tractor? For originality, I suppose it should stay where it is. For use, it probably should be moved.
Any ideas, thoughts?
SadFarmall
 
Years ago, I asked the same question about the temp gauge. I was told the guage was "set" to work there, and it would read hot any
where else. This same guy also said it a regular IH gauge, like for an H or M would not read anything at all if one as used there,
unless it got really, really hot and by them would most likely ruin the engine. That started quite the debate. I just left it
where it was.

I can see my oil pressure gauge, and could see it when it had the same steelies on it, just by slightly tilting my head. So I
didnt worry about it.
 
I thought that might be the case with the temperature gauge - possible reaches the hot zone at 175F or so? What it does not do, is measure cylinder head temperature. As the cylinder head is usually the first engine part to suffer when overheating occurs, it would be nice to have a gauge for it. Probably not going to worry about it, though - most people forget to check gauges in any case!
SadFarmall
 
A self powered electronic temp gauge will work. (I don't know that the sample is self powered) thermocouples can drive meters and
provide clear info. This one fits under a spark plug. Jim
A sample
 
I would argue that the temp guage bulb location is where it is for a good reason, that these engines were originally designed to run on kerosene or distillate and for those fuels to vaporize correctly the temperature of the engine must be kept around 200 degrees , so it is important that the coolant is not getting too much heat removed by the radiator . The temp of the water going back into the engine is more important than the temp of what is coming out, as the radiators on those old tractors were capable of keeping them a lot cooler than they needed to be, so they had curtains or something to restrict airflow. Now that we are all burning gasoline in them temperature is much less important.
 
I'm sure there is a wise reason for that location. We can only speculate today. My guess is that there was an attitude of keep
it simple for simple or hurried people. With the gauge low in a thermo syphon system, the bulb will always be in water. The Moto
Meter on cars of the period sat on top of the radiator and could be exposed to steam or air, giving a false reading. When shutting
off a fully loaded thermosyphon cooled engine you will notice actual boiling--it's normal even during operation. their location
choice might be the most stable temperature in the system. If the coolest water going into the engine is too hot then it is
definitely too hot.

just a few thoughts
karl f
 
The oil gauge is much harder to see on an O-12 or W-12, you almost have to get off the seat to see. The F-12 has a much narrower fuel tank. I presume to keep the connections short as it was the same place on a 10-20.
 
Thank you for the replies. I think a thermocouple may be the answer. Not sure about the planning that went into the location of the original temperature gauge bulb. F12 tractors did not have a temperature gauge until chassis FS104537 or owners fitted them to earlier machines. Also, Farmall H and M tractors have the sender in the cylinder head. If I can get the original gauge working, I will fit it again as well as one for cylinder head temp.
SadFarmall
 
You must log in or register to reply here.

Similar threads

B
8N no oil pressure
2
Replies
38
Views
2K
Eman85
E
C
Oil pressure gauge replacement
Replies
3
Views
358
used red MN
U
G
1972 CAT D4D overheating
2 3 4
Replies
68
Views
2K
Cash4Toys
C
JohnRowehl
Engine Compression
Replies
10
Views
575
JohnRowehl
JohnRowehl
JohnRowehl
Compression Test
Replies
1
Views
350
J.Wondergem
J.Wondergem
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