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Old 04-17-2011, 03:24 PM   #1
Ken Lauderback
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Default Gas gauge repair

Got in my '31 pickup this morning for the first time since last fall some time. The gas gauge was nearly on the "0" reading. I thought "I had more gas in here than that..." but decided I had been mistaken. So, off to the gas station to fill up. Only took 6 gallons, and the gauge is still on "O" so I assume the float has become soaked and sunk. When I "rebuilt" the gas gauge a couple of years ago, I think I coated the float with shellac. So, guessing the alcohol in the fuel has dissolved the coating. The reason I cleaned up the original gauge and reused it was that the so called "rebuild kit" I bought from Sacramento Vintage Ford at that time was so cheap looking and cheesy that I couldn't bring myself to put it in the tank. Are there different kits out there? If so, who makes the best one? Or, is there a good replacement for the original float? I'm probably not going to change it right now, but will need to do so some time this summer. Any help will be appreciated.
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Old 04-17-2011, 03:37 PM   #2
Mitch//pa
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Default Re: Gas gauge repair

i just had the same thing a sunken cork float. i just changed mine out to the neoprene float hoping it will last longer. it can be installed on your original Gage
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Old 04-17-2011, 03:52 PM   #3
Mitch Bunkin in PA
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Default Re: Gas gauge repair

I had the same problem 4 1/2 years ago & like Mitch (above) replaced with neoprene.
Everything fine since then.
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"the other Mitch"
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Old 04-17-2011, 05:21 PM   #4
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Default Re: Gas gauge repair

Who sells neoprene floats, Bratton's and others. My cork float sank a yesterday after I dranined old gas and added fresh fuel. Anyway, I thought I would try the neoprene without researching it at all. Now I may reconsider. Brass float might work. But noisy if it bounces off bottom or top?? Source for nitrophyl floats?
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Old 04-17-2011, 06:23 PM   #5
Ken Lauderback
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Default Re: brass floats?

Is there a brass float available? And if so, from whom?
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Old 04-17-2011, 06:38 PM   #6
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Default Re: Gas gauge repair

I have heard some folks soldering a carb float to the gas gauge wire. I did a quick search for nitrophyl floats and did not find anything that would be a direct replacement for what we need. I may go ahead and use the second best neoprene, I haven't heard of any failures with them, so far.
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Old 04-17-2011, 06:40 PM   #7
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Default Re: Gas gauge repair

GAS GUAGE FLOAT - NEOPRENEFor Year(s): 28-31

Gas and Alcohol proof float.




ill give it a try before i order one from NASA
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Last edited by Mitch//pa; 04-17-2011 at 06:46 PM.
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Old 04-17-2011, 06:50 PM   #8
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Default Re: Gas gauge repair

What worked for me was to shorten a float that I removed from a modern car where I had changed the entire gas gauge. That assembly had been made to accommodate ethanol fuels. That float has been working well in my 40B for over five years. Gar Williams
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Old 04-17-2011, 09:08 PM   #9
John Butts in CT
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Default Re: Gas gauge repair

Ken, this topic has been discussed several times since ethanol appeared at the pump. You might want to read http://www.fordbarn.com/forum/showthread.php?t=30531

What I think of as as the "hard" neoprene floats (per Mitch's post) have been offered by Model A vendors for years, as have the "soft" neoprene gaskets. I'm no chemist, but I suspect that the floats and the gaskets have a different makeup. My "hard" float is perfect after five years. My bad experience with the neoprene gaskets is chronicled in the earlier post.

Whatever float you choose, stick with cork gaskets, and keep a spare set on hand. It's much easier to replace your gaskets every so often than to deal with neoprene gaskets that have turned to goo and run down inside your tank.

JMHO. Best of luck. Let us know what you decide.
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Old 04-17-2011, 09:25 PM   #10
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Default Re: Gas gauge repair

I have the brass float in both my A's and seem to work well. I bought them from one of the A vendors

I just checked Mikes afordable web site and they have the brass floats for $9.95 each
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Old 04-17-2011, 10:20 PM   #11
Ken Lauderback
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Default Re: Gas gauge repair

Thanks to all of you who have taken time to respond. It has been a big help!
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