(800) 853-2651
SHOP NOW

Propane leak

R

Rich'sToys

Well-known Member
Location
Southern MN
Been trying to track down a fuel leak on my John Deere 50 LP. The vapor valve had an obvious leak in it which leaked all the LP out last fall. Got a replacement a few weeks ago and put it in. Had some fuel added, but the gauge was still going down.
The other day I put some soapy water in a spray bottle and squirted it on every fitting and connection I could find. The new part I put in did not show any leaks, but I started getting bubbles from the fitting on top of the tank which I have circled.
According to the owner's manual this is apparently a vapor return for when you fuel from a large LP tank. I have never filled it that way. I take it to a place which fills the small tanks. They connect their line to the large fitting and use the bleeder on top of the tank to release any excess vapor.
So I guess what I'm asking is--do I need this fitting, or can it be replaced with a regular plug of some sort? My regular LP supplier has been reluctant to get involved with this in the past. If necessary I can check with them again I guess. Thoughts?

mvphoto83644.jpg
 

Should be a cap on it. kind of like the cap on top.

I would find a wood dowel that fit in that hole and bump it and let it close fast. may reseal it. It'll let a little propane out.
DO THE AT YOUR OWN RISK.
 

Charlie M, that's what I was thinking. It appears to be quite rusted and corroded. There is a yellow plastic cap that screws on over it, and also one for the large fitting. I just took those off for the photos.
 
It screws apart and the hex part has rubber seal on it. I would find different LP place if they dont want to mess with it. The whole vapor return can be replaced if want to.
 
If your supplier does not understand an LP system, they should not even sell you fuel. But they want to sell fuel with NO
RESPONSIBILITY. imho. I would replace with NEW all valves in the system. That one circled looks a bit flakey. jmho gobble
 
That looks a lot like a wet line connector on an LP storage tank. My LP guy was here yesterday and told me that over the years
they changed the size of them on newer tanks....didn't say what year. I guess my old line won't fit the new tanks without an adapter.
Jogging my memory, a wet line connection to the nurse tank or other supply device would be how you fill your tank with liquid.
Had a somewhere in the 60s yearmodel LP 4020.

So you see the seal for the filling hose and there is apparently a seal you don't see that seals the contents from leaking out.
 
That valve is there to allow pressure out if you are filling from a wet leg on a LP tank. If your LP supplier is pumping the gas in you don't need it.

If you are taking it out anyway, I would strongly suggest you replace it with the same valve in new condition. They are not that expensive and if ever needed you will be able to fill with a wet leg a lot easier.

Yes you can plug it, but if you go to the trouble to take it out, then fix it right. Your LP supplier should have the part. Bob
 

Thanks to everyone who replied. Now I know what the original purpose of that valve was. Always good to learn something new.
I will probably look into getting the part replaced with the proper one as Bob suggested. At this point I'll probably wait till spring to go any further on this project. Looking forward to getting this thing operational again.
Again, thanks to all who responded.
 
(quoted from post at 08:30:49 10/27/21)
Thanks to everyone who replied. Now I know what the original purpose of that valve was. Always good to learn something new.
I will probably look into getting the part replaced with the proper one as Bob suggested. At this point I'll probably wait till spring to go any further on this project. Looking forward to getting this thing operational again.
Again, thanks to all who responded.
Click to expand...
Somebody will have to empty the tank before it can be worked on. They will charge you for that.
 
I'm a little late replying but if you can get someone to they can sell you a new gasket and a metal cap for it. At least stop it from leaking until you can replace it.
 
You must log in or register to reply here.

Similar threads

W
Addition to quick fix: Not to steal Tgrashers post;
Replies
0
Views
386
Wheat47
W
J
Another Ford 801 fuel return line thead
Replies
13
Views
543
showcrop
showcrop
A
Ford 5000 hydraulic leak in break Rod.
Replies
11
Views
187
adnedidas
A
TractorDad3
Cleaning Brass Fuel fitting
Replies
7
Views
458
TractorDad3
TractorDad3
R
LP Fitting
Replies
11
Views
485
r.w.b.
R
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