Go Back   The Ford Barn > General Discussion > Model A (1928-31)

Sponsored Links (Register now to hide all advertisements)

Reply
 
Thread Tools Display Modes
Old 12-22-2021, 05:42 PM   #1
IndyA
Member
 
Join Date: Dec 2016
Posts: 61
Default Leaking Gas line @ carburetor

Friends: Installed a rebuilt carb in my'29 coup; tightened the hex compression nut (new ferrule) down to two threads showing and get a very small leak (about a teaspoon every 24 hrs). Am afraid to tighten the compression nut further for fear of stripping the carb threads. Snyders sells an oversize ferrule which might be one cure? Is there a common "paste" that can be applied to the forward-end of the ferrule to help make a perfect gas-tight connection? Many Thanks for your help.

IndyA
IndyA is offline   Reply With Quote
Old 12-22-2021, 07:08 PM   #2
Gary WA
Senior Member
 
Gary WA's Avatar
 
Join Date: May 2010
Location: Clinton,WA/Whidbey Island
Posts: 4,088
Default Re: Leaking Gas line @ carburetor

I have used Indian shellac. also try and tighten a little more ensuring the gas line is not pushed in to far.Also have seen where the ferrule has a hair line crack .
__________________
www.whidbeymodelaclub.com

Last edited by Gary WA; 12-22-2021 at 07:56 PM.
Gary WA is offline   Reply With Quote
Sponsored Links (Register now to hide all advertisements)
Old 12-22-2021, 07:22 PM   #3
1946
Member
 
1946's Avatar
 
Join Date: Jun 2012
Location: Tasmania Australia
Posts: 81
Thumbs up Re: Leaking Gas line @ carburetor

Had same problem.. fixed by a few turns of plumbers tape/ thread seal tape on the line just behind the ferrule and tighten as per usual. Job done.
__________________
Tassie Devil
1946 is offline   Reply With Quote
Old 12-22-2021, 07:34 PM   #4
flybob08
Member
 
Join Date: Jul 2021
Posts: 76
Default Re: Leaking Gas line @ carburetor

Be sure to Use the yellow petroleum tape. They have it at Home Depot
flybob08 is offline   Reply With Quote
Old 12-22-2021, 07:42 PM   #5
Synchro909
Senior Member
 
Synchro909's Avatar
 
Join Date: Jun 2014
Location: Melbourne, Australia
Posts: 7,471
Default Re: Leaking Gas line @ carburetor

A little dab of Permatex No 3 will do it.
__________________
I'm part of the only ever generation with an analogue childhood and a digital adulthood.
Synchro909 is offline   Reply With Quote
Old 12-22-2021, 10:00 PM   #6
Bud
Senior Member
 
Bud's Avatar
 
Join Date: May 2010
Location: Ohio
Posts: 816
Default Re: Leaking Gas line @ carburetor

Sponsored Links (Register now to hide all advertisements)
I had a similar problem at the sediment bowl, right before the extended ferrule was available. So I took the gas line off, blew all the gas out of it and let it lay in the sun for a short while until I was sure all the gas was gone from it. Then I put a light coating of solder on the face of the ferrule to build it out, making sure it was a uniform coating. I polished it with some very fine sandpaper (the black 3M type). That was over a year ago and I have a nice leak free joint and the hex of the compression fitting is slightly further away from the sediment bowl and does not bottom out.
Bud is offline   Reply With Quote
Old 12-22-2021, 11:11 PM   #7
bruceincam
Senior Member
 
bruceincam's Avatar
 
Join Date: Mar 2021
Location: Camarillo, Ca
Posts: 163
Default Re: Leaking Gas line @ carburetor

I've used this thread tape successfully on gasoline leaks. Shop around --- it does come in a 1/2 inch wide roll.

https://www.amazon.com/Millrose-Mill...91389132&psc=1
bruceincam is offline   Reply With Quote
Old 12-25-2021, 09:18 AM   #8
IndyA
Member
 
Join Date: Dec 2016
Posts: 61
Default Re: Leaking Gas line @ carburetor

And a "dab" did it !!! 5 Great Suggestions ...Thank you all. Indy A
IndyA is offline   Reply With Quote
Old 12-25-2021, 11:55 AM   #9
JoeCB
Senior Member
 
JoeCB's Avatar
 
Join Date: Nov 2018
Location: Farmington MI
Posts: 281
Default Re: Leaking Gas line @ carburetor

Along the line of the solder suggestion that Bud made... I will sweat solder the ferrule to the tube before assembly. That seems to improve sealing and it requires less torque on the fitting to give a good seal.

Joe B
JoeCB is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Sponsored Links (Register now to hide all advertisements)


All times are GMT -5. The time now is 03:13 AM.