(800) 853-2651
SHOP NOW

Farmall Oil Guage readings

Y

Yooper Farmall

Member
Has anyone had at some point both a Farmall Oil pressure guage on an H and then later a numerical guage to see how much pressure the pumps actually produce?

Last weekend I had access to 10w-30 but not straight 30w. I changed the oil and when I started the tractor up the level was displaying close to the "L" on the guage. After warming up and driving for 10 miles it was down to the "O" and after plowing for an hour the pressure was reading right on the border of the white zone and the red zone. I"m replacing the oil with 30w tonight, but wanted to get an idea of what the pressure might be at the red zone, 5 pounds? 10 pouds? What might the pressure be at startup when the needle is at 75%, 30lbs? 50?
a41014.jpg
 
I just replaced the bearings in my 340 this spring and went through the oil pump because I was running under 10 pounds when the tractor was warmed up. My guess is your red line somewhere around 5 pounds.
 

I have a replacement oil pressure gauge from Case-IH on my 1950 H. The gauge IS an IH item with the IH logo, but it is marked off in actual numbers, 0 to 75. A good, solid H engine will carry 75 pounds of oil pressure.

Your H is displaying some issues with the oil pump. Most likely the bottom cover plate is worn, or the gasket is blown out. The cover plate can be re-surfaced and the proper gasket is available from Case-IH. Take care of the oil pump issues and your tractor will once again have great oil pressure.
 
Hs, Ms and 9 series use an 80 lb gauge. As, Bs and all others with that style engine (113, 123, 135, 146, and 153) up through the 340 use a 45 lb gauge. Engines that use the 45 lb gauge have an oil pump with an aluminum bottom cover that often warps and has gasket failures. The larger engines that use the 80 lb gauge have a cast iron bottom cover on the oil pump.
 
Dont quote me, the gauge shown about is good 45lbs. (May be 55lbs., I dont really recall) I have one of these on my Ms and all 3 peg the gauge cold, warm they only drop whn at idle. I had a 75lb. IH gauge on one of my Ms, it would peg that hot and high idle, 35ish at idle
 
You must log in or register to reply here.

Similar threads

G
1972 CAT D4D overheating
2 3 4
Replies
68
Views
2K
Cash4Toys
C
G
John Deere 4020 - Steering Motor Pinion Seal
Replies
14
Views
743
Albert Hargreaves
A
G
TO35 low oil pressure when hot
Replies
9
Views
1K
GaryTO35
G
C
Oil pressure gauge replacement
Replies
3
Views
377
used red MN
U
O
Looking for another idea.
2 3
Replies
42
Views
2K
rustred
rustred
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