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1937 fuel pump question
  • 66patrick6666patrick66
    Posts: 1,831Platinum Member
    On my '37 212 engine, I'm replacing my fuel pump with an overhauled stocker. How thick is the pump-to-block gasket supposed to be? This pump does NOT have the wiper vacuum provision.
    "The time has come", the Walrus said, "to speak of many things. Of shoes and ships and sealing wax, of cabbages and kings. And why the sea is boiling hot,
    And whether pigs have wings..."
  • bill a
    Posts: 1,570Platinum Member
    You Just Need A Regular Paper Gasket, No Spacer Needed, Bill Albright
  • Jon BJon B
    Posts: 4,769Moderator
    Bill, I defer to your knowledge, but this is astounding! I was sure that the composition gasket was at least 1/4" thick! If one only needs a paper gasket, my '37 fuel pump has been mounted incorrectly for 35 years, LOL!
  • 66patrick6666patrick66
    Posts: 1,831Platinum Member
    OK, so which is it? My pump on the car was an overhauled unit, but has only been on the engine for maybe an hour of running time. It had a thin gasket on it. So, is the thin gasket why it failed? Is the arm engaging the cam eccentric incorrectly?
    "The time has come", the Walrus said, "to speak of many things. Of shoes and ships and sealing wax, of cabbages and kings. And why the sea is boiling hot,
    And whether pigs have wings..."
  • bill a
    Posts: 1,570Platinum Member
    LTHERE LIS ENOUGH CONTACT AREA ON THE FUEL PUMP TO WORK WITH A PAPER GASKET OR UP TO 3/16COMPOSITION GASKET, THE 499 ARM WILL WORK WITH EITHER, THE FACTORY ALSO HAD A METAL PLATE THAT WAS INSTALLED BETWEEN PUMP AND BLOCK, WHICH I ASSUME WAS JUST ON OIL SPLASH GUARD. MOST ARE MISSING BY NOW AND SEEM TO WORK WITHOUT THIS ITEM. iT IS JUST A STAMPED TIM PLATE, BILL A. BY THE WAY, JON, HOWE DO YOU GET A FUEL PUMP TO LAST 35 YEARS???? LOL
  • Jon BJon B
    Posts: 4,769Moderator
    (Well, truth be told, Bill, I DON'T get a fuel pump to last that long, LOL!) My pump has (as I recall) the composition spacer and the metal plate as well, and I just assumed that was on all of them.
  • Uncle JoshUncle Josh
    Posts: 1,860Platinum Member
    Your pump failed because it wasn't rebuilt correctly. I've had 2 bad ones from a club rebuilder. One leaked gas after a week, and the other quit pumping air after about the same time. We were discussing 2 other failures at the meet today. Bruce's crapped out on trip to Kearney, filled the carb with black crap and finally the pin came out of the arm, and it cost him dearly for towing and running around. The rebuilder makes good, but needs to tighten up his quality.



    I've been rebuilding my own. Clean the parts in carb cleaner and you can buy the diaphragms. Not much to them. The only other moving parts beside the arm, are the phenolic poppets and the springs, neither of which will ever wear out in my opinion.
  • Chuck G
    Posts: 365Platinum Member
    What you need is a mechanical procedure manual like the club store sells. I got mine from Robbie Williams some years back, it shows 1934,35,36 pumps are not the same as 1937. It says you need to have a spacer that is composed of 5 layers thick of gaskets and is .275 thick compressing to .250 when installed on the AC type 499 fuel pumps as used on 1937 Terraplane.

    Chuck G.
  • Chuck G
    Posts: 365Platinum Member
    Uncle Josh

    Can you tell me who sells just the diaphragm for the AC-499 fuel pump as used on the 1937? I would like to buy a few.

    Chuck G.
  • 66patrick6666patrick66
    Posts: 1,831Platinum Member
    New one working fine! The old pump had the nearly-1/3" spacer on it, so I reused that spacer gasket. Working good so far.
    "The time has come", the Walrus said, "to speak of many things. Of shoes and ships and sealing wax, of cabbages and kings. And why the sea is boiling hot,
    And whether pigs have wings..."
  • BigSkyBigSky
    Posts: 76Senior Contributor
    My 37 Hudson coupe's fuel pump gave up a while ago and sucked something black into the fuel bowl (Glass bowl). Is this oil from the engine being sucked into the fuel lines?

    Also if anyone can recommend a place to get a rebuilt fuel pump (has electric hand if important) or parts to rebuild mine, I would be very greatful!!
  • mars55
    Posts: 1,060Platinum Member
    Dave Kostansek and Tim Cheney offer a rebuild fuel pumps for '37s



    7902 Rt 7 Williamsfield, OH 44093



    Dave Kostansek 440-293-4079 and Tim Cheney 440-994-9173 (Before 8 PM)



    I believe Bill Albright offers them as well.



    16593 Arrow Blvd, Fontana, CA 92335 909-823-9168
  • Uncle JoshUncle Josh
    Posts: 1,860Platinum Member
    Try Antique Parts Cellar

    http://www.then-now.com/The_Cellar/cellar.htm
  • HudsonTerraplane.comHudsonTerraplane.com
    Posts: 13Hitchhiker
    I have some info about this on my site. It is the dual pump, but pertains to the single pump also.

    Check out http://www.hudsonterraplane.com/tech/FuelPump/1937_dual_action_fuel_pump.htm
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