Announcement

Collapse
No announcement yet.

So, Your Carb Still Leaks

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • So, Your Carb Still Leaks

    If you install a new needle and seat and the carb still leaks, make sure you aren't sending rust and junk down the line.
    The pencil filter in the top of the tank valve is an important first step.
    If you have a cast iron sediment bulb,make sure it's spotless clean inside, or you may be sending junk down the line.
    I forgot to show the lock washer in picture 4.
    Don't overlook the final filter in the carb, as I've see rust collected there also.
    You do not have permission to view this gallery.
    This gallery has 4 photos.

  • #2
    Tom,
    I know how much you like ethanol in gas. Does it promote gas leaks in addition to poorer gas mileage and less stability?
    Dave

    Comment


    • #3
      After dis-assembling about 20 of those I was suprised how plugged most of them were. Not sure how any of them were straining out anything or even letting gas get to the carb. Rod
      "Much of the social history of the Western world, over the past three decades, has been a history of replacing what worked with what sounded good." Thomas Sowell

      Comment


      • #4
        Tom
        Those are great pics along with some good info. I am going to copy your post and add it to the fuel filtering thread i started in the tech forum.

        I know those iron bulbs filter good, but i prefer the glass type with a filter inside.
        I like to see whats going on in there
        3~ Tudor's & 1~ Coupe
        Henry Ford said,
        "It's all nuts and bolts"
        "Start by doing what's necessary; then do what's possible; and suddenly you are doing the impossible."

        Mitch's Auto Service ctr

        Comment


        • #5
          I'm with you on that as well mitch.

          Comment


          • #6
            In the third picture, my new sediment bulb brass screen hadn't arrived yet, so I didn't have it to show in the picture. The old screen was gone.

            Dave, I don't know if ethanol promotes leaks, but since it attracts moisture, I'd say it adds to tank rust.

            Comment


            • Mitch
              Mitch commented
              Editing a comment
              Ethanol does play hell with rubber fuel lines & Evap systems, so in the end once they deteriorate enough i am sure a leak can start on a car using them

          • #7
            Always a good easy thing to check before going on the road!

            Comment


            • #8
              I had some trouble with those viton tipped float valves sticking and removed them. Not too many others have noted the problem, so maybe it was just me. I have the glass bowl type.

              Comment

              Related Topics

              Collapse

              • Tom Rode
                Why no fuel filter?
                by Tom Rode
                My recently acquired model A does not have an inline fuel filter. The gas line comes through the fire wall for about 10 inches then a section of rubber fuel line hose, clamped both ends, to another section of copper line to carb. No Fuel filter. The good news here, visual inspection of the fuel tank reveals Spotlessly Clean tank, no rust, sediment, nothing. Ran out of fuel recently (just got the rebuild...
                11-26-2019, 10:08 AM
              • Mitch
                Fuel System Basics and Filtering Options
                by Mitch
                Fuel System Basics and Filtering Options

                The stock Model A fuel filtering consists of a stand up pencil type filter screen on top of the tank shutoff valve which sits inside the tank, (these pencil filters were not used when the car was built) a cast iron or glass sediment bowl and an inlet screen at the carburetor. The late 31 indented fire wall models have the shut off valve under the...
                06-19-2017, 11:19 AM
              • ndnchf
                '31 gas line and filter for Marvel carb
                by ndnchf
                My new to me indented firewall pickup has a great running Marvel carb, but a rube goldberg gas line and no filter. I'd like to install a new shut off valve and make up this set up for it. Two questions. Does a pencil filter work with the '31 style shut off valve? Do the new shut offs work well with no leaks? Here is what is currently on it and what I'd like to do. And yes I know there a other...
                02-04-2022, 08:36 AM
              • Birdhunter555
                Fuel Shutoff Replacement
                by Birdhunter555
                Hi All,

                Go figure another question from me

                I noticed the smell of gas in the garage and noticed the carb was leaking. When looking at it, it looked as if fuel was all over it and not leaking in one particular place. The fuel shutoff is in the horizontal off position. I emptied the sediment bowl and checked in about 4 hours and the bowl was half full again.
                ...
                02-13-2021, 11:21 PM
              • DaWizard
                Will the problems never stop?
                by DaWizard
                Well, now that I have a great spark I find something else to take away from my driving pleasure.

                About an hour or so ago, while driving on the busiest 4 lane highway we have, the engine decides to just rough idle at a signal and die! (it just had to be this road and me in the fast lane parked!)

                Well, after trying fruitlessly to get Wheezer running again, parked in the #1
                ...
                12-22-2018, 08:09 PM
              • JohnB15632
                Fuel Filter Gas Level
                by JohnB15632
                This is the gas filer in the gas line. The gas level is low. When I open the gas valve, this level barely changes.
                Is this correct?
                IF this is incorrect, then how do I get the gas filter to fill?

                Thanks,
                You do not have permission to view this gallery.
                This gallery has 1 photos.
                04-07-2021, 12:15 PM
              • dmdeaton
                New to me roadster quit on us tonight, carb question.
                by dmdeaton
                Ok, this morning I took a 30 mile round trip to Ron's Machine Shop in Shandon, OH to show them the car. Stopped on the way home and filled up with 5 gallons. We jumped in tonight to take a short drive and less than a mile from the house it started sputtering and finally quit. Got it started with choke and it idled for a while then quit. Pushing on gas pedal it is starving for gas. I am pretty sure...
                09-16-2017, 10:32 PM
              • Big guy
                Could it be vapor lock?
                by Big guy
                Sadly today was this first time Roscoe was out. Took me to the carwash to remove the dust. Started with barely tapping the starter and purred like a kitten.This was the first time with new in tank filter, new gas shut off valve, Wix filter, new bowl to carb gas line and new Renner jets. So ran wonderful on the ride to and from the car wash until I got stuck by a train. I shut him down until the train...
                06-02-2020, 07:05 PM
              • Rumbleseater
                Fuel System Overhaul
                by Rumbleseater
                Received all my fuel system pieces for our '29 Coupe fuel system restoration. This week's goal is to drain the gallon or so of gas from the tank, replace the shut-off valve (pencil filter in hand), new gas gauge float (non-cork), cork gauge replacement gaskets, new replacement glass bowl style filter, under hood gas line, and be ready for my Zenith-1 rebuilt carburetor once Jim Bullock does his magic....
                07-25-2021, 08:22 AM
              • Terry, NJ
                B Carbuetor blues
                by Terry, NJ
                A couple of years ago, I bored out an A manifold to B size and installed a B carburetor on my coupe. At first there were some problems with rust in the tank. I got it straightened out with a pencil filter and a paper filter in the fuel bowl. Since then it's been great! Then I took the car over to a friend's garage to do the brakes and the carb started leaking. The new tank valve was leaking too, but...
                07-02-2020, 09:03 PM
              Working...
              X