(800) 853-2651
SHOP NOW

Oil pressure gauge

Liquid_wrench

Liquid_wrench

Member
Location
Ohio
Ok, Just got done hooking up an oil pressure gauge...on my deutz tractor. I bought it from napa. Started tractor up...and ony 20 psi on gauge..I just changed oil yesterday (straight 30)...so I thought this can"t be right.I checked the line (no kinks)took line off of tractor...started tractor for 2 seconds..then shut off...yeah there was oil all over the motor...so I took line off of gauge..started tractor again and oil would barely drip...real slow ..I don"t get it, maybe the line is too small? bad gauge? That oil pressure should be higher than 20 when cold. When I took the line off gauge when running...I would think oil would shoot out...not just drip..What do you guy"s think?

Regards, Keith
 
I dont know what kinda tractor you got but if its a two cyclinder john deere 12-15 ibs max is plenty unless its a diesel than 25-28
 
It's all new..the line is very small, it comes coiled up..when I uncoiled it I was careful not to kink it...maybe tomorrow i'll try to blow thru it.
 
Plastic or metal line??? If plastic and it has the fraels (sp) that slide on you may have tighten them down to tight and by doing so it can clasp the line to the point you get little or no flow
 
take the line loose at engine & see if you get oil spray there , if not you better start looking , but with engine running you should spray oil all the way to china out that line even if it only has 20 psi, if it turns out to be in engine id check the pressure releaf valve on the pump or side of block , but i have seen the lines get plugged with just a small piece of dirt , broken gasket or silicon
 
Un hook both ends so plastic line is loose. Blow it from the gauge end back to the motor so what ever is in there hopefully makes a short trip and clears, ALSO use a regulator and keep the hose pressure down to "oil" pressure. If you stretch or blow up that line you are SOL. I like electric gauges but mechanical are supposed to be "real" readings. What ever have fun.Jeffcat
 
A good mechanical oil pressure gauge will have an orifice in a fitting, or a tiny tube -so that a massive oil loss won't occur if the line breaks. You don't much need any "flow" for the gauge to work, as there really is no flow.
You could hook any pressure gauge close to the engine temporarily to see what you have really got. Maybe, since the new tube is so tiny, it's got some grit lodged in it?
 
The oil shot out all over the motor..when I took the line off at the fitting on the motor and started the tractor..so it's pumping out there very well.
 

If at all possible replace the plastic with metal. I have broken the nylon line at the fitting where it gets cinched down. Tree branch, bored cow munching etc.
 
For oil I use 1/8 inch copper line and get rid of that plastic blow the engine junk due to having it get hooked on something and break and pump the oil out before you know it has
 
just do the simple thing... check the pressure with a master guage at any oil gallery. 20 lbs. is plenty at an idle. you don't need oil volume for pressure.
 
The best thing to do is see if you could hook either the new oil pressure gauge or another known good pressure gauge closer to the fitting where it comes out of the engine without all of the plastic piping. The gauge might be reading right???? Like was said in another post you don't necessarily need super flow at the gauge - just the pressure which will eventually build up even if there is a slight restriction. Remember the oil isn't going anywhere at the end of the line so it will build up eventually to engine oil pressure. If the oil could flow out of the end of the line the pressure would be nearly zero since there is very little flow. Massive flow out of the engine block doesn't mean massive pressure. Best bet is to measure the pressure at the engine with a known good gauge without all of the tubing as a precaution. A good farm or hardware store might have all of the fittings to do so for a temporary check. There are some known problems with the inexpensive gauges being accurate. Good luck - I understand that it can be frustrating.
 
You must log in or register to reply here.

Similar threads

D
1956 JD60 Oil Pressure Gauge and tubing
Replies
11
Views
566
wore out
wore out
O
Looking for another idea.
2 3
Replies
42
Views
2K
rustred
rustred
L
Ford 8 n no oil pressure
Replies
1
Views
310
used red MN
U
H
JD 145 gas oil pressure issue
Replies
2
Views
299
caterpillar guy
C
T
1944 model A oil pressure gauge line size
Replies
2
Views
290
Tstoner
T
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