1946 Super Six Coupe Fuel Pump Options

Lsheesley
Lsheesley Senior Contributor
edited November -1 in HUDSON
I have the double action fuel pump out of my super six. When I bought the car it had both the double action mechanical pump and an electric pump down line, I have taken the pump apart and it looks real new inside and I did find that the fuel pump diaphragm was not connected to the arm so I am not sure if it was rebuilt and didn't work so they put the electric one in. The electric one was not working either but I removed it and cleaned it up and it sounds like it runs now. I read on the forum that the double action pumps had an issue with leaking gas into the oil and was wondering if I can go to a single action or electric fuel pump only? If so what would I need to do and what do I do about my vacuum wipers? Where would I get the vacuum to run them? I have taken the tank out and had it cleaned and lined and am looking to make a new metal line from tank to flexible hose at pump but need to figure out the pump first. I am wondering what everyone thought the best options might be. As you can see I am a new Hudson owner and I appreciate all the help you all have been. I have a heating issue and it sounds like a lifter ticking but those will be my next tasks.

Thank You to all

Comments

  • [Deleted User]
    [Deleted User]
    The double pump should be no more likely to leak into the engine than the single pump . They use the same primary diaphram design. The engine is what makes vacume for the wiper motor ,The double pump was an option for better wiper performance .You loose vacume under acceleration. I have run several of my Hudsons right off of an electric pump with no mechanical one. Blacked off the hole and removed it. Good idea to run it with a relay off the oil preasure switch with a bypass for starting. Just incase of accident it quits if engine quits .The valve lifters are probably needing adjustment if making noise ,not a big problem,
    Roger
  • Lsheesley
    Lsheesley Senior Contributor
    Hey Roger,
    Thank you for the information..if the double action is no more likely than the single action pump to leak than I think I will look for a rebuilt double action pump and put her back the way it came.

    Thanks again
    Les
  • [Deleted User]
    [Deleted User]
    I will add that the set up you. Describbed is ideal for modern fuel. The factory pump works under most conditions .But when engine sits for a time fuel evaporates from carb requiring exessive cranking. The eelectric pump is used for a few seconds to fill carb then shut off and car started normaly. The electric is also a. Good stand by in case of vaporloc on hot weather. And they will with this crap gas we have now,
    Roger
  • Clutchguy
    Clutchguy Senior Contributor
    Is it possible that you take a picture of the double action pump you removed and post it here?.Verify if it is the correct pump. Also, is the gas tank clean?. This is the #1 problem most have when dealing with the fuel system. You think it is clean but it's not,and just adding another fuel filter will not resolve the problem. Alot of times,it may appear clean and after putting fuel in it a few times, the new fuel breaks down the old and causes a real fine particle,almost silt like substance. This is so fine it passesd right thru the fuel filter and causes build up in the f/pump and the carb. CG
  • Lsheesley
    Lsheesley Senior Contributor
    well I have taken care of the tank.. I removed it and took it to a company that renews the entire tank. I have yet to install it because I am soldering some cracks in the fuel sending unit brass float. I think I will put both the electric and mechanical pump back on. I found a couple Nos fuel lines that go from the metal line to the pump. An old parts store here had 2 of them and a Nos wiper motor. I don't know if i'll need it yet but I went ahead and picked it up. I have had the radiator cleaned and tested and put the thermostat in a Pan of water and seemed to open appropriately. I am wondering if i should take the water pump out and make sure it is free and functioning before i put that all back in. When i had it runnng on the temp tank it seemed to heat up according to the light i hope once i have done all of that she is going to run and not heat.

    Again I appreciate everyone's help and hope someday I will know enough to help others.

    Les
  • [Deleted User]
    [Deleted User]
    You mention it overheated ,one thing before you get real excited might be to make sure with a hand held laser sensor with car running. May not be possible now with car appart .
    Also on that Hudson 6 you will see where the water hose from radiator goes into the drivers side of engine. That metal housing has a baffle plate in it that tends to rot out. This plate is to keep even flow of water around cylinder walls. Fairly easy to remove and check. Also a head gasket can cause overheating,
    Roger
  • Clutchguy
    Clutchguy Senior Contributor
    Les, DO nOT USE THE O. E. fuel hoses you mentioned. These are NOT modern fuel compatable. The modern fuel will make them dissolve and cause a fuel leak,and could possibly cause a fire. The exhaust is right beneath it and fuel dripping and/or running in this area could be disasterous!
  • onerare39
    onerare39 Expert Adviser, Member
    Les,

    Have you received a copy of the White Triangle News yet? You will find many parts suppliers listed under "Member Products & Services", and other suppliers listed in the Classified Ads. It's one of the benefits you receive by being a member of the Hudson Essex Terraplane Club. As an added bonus you can have the guys from the local chapter come over and give you a hand.

    John Forkner
  • Lsheesley
    Lsheesley Senior Contributor
    Thanks Clutch Guy, well I guess I have a couple items to hang on the wall in the shop, at least they do say Hudson on them.
  • Lsheesley
    Lsheesley Senior Contributor
    edited December 2011
    Hey john, Yes I have, thank you, and I have ordered some gaskets so far. I am trying to get the loose ends tied up by the 12th of next month as I have hip surgery that day and will not be doing anything for a couple of months. I guess that will give me time to do a lot of reading and research. I must say ... what a great bunch of people here
  • Clutchguy
    Clutchguy Senior Contributor
    Les, Looking in your WTN, Dale Cooper has the fuel hose that goes between the O.E.steel line over to the fuel pump. I use them all the time and it is a direct replacement. It has the correct fttings on either end and also is modern fuel compatible. CG
  • Uncle Josh
    Uncle Josh Senior Contributor
    Check the 'Whatsit fuel pump' thread so you don't get screwed up like I did.
  • Lsheesley
    Lsheesley Senior Contributor
    Thank you, I was going to ask about all of the spacers on my pump. When I took it off it had a normal gasket then a metal plate the shape of the gasket, then about 1/2 or better of thick gasket material then the pump. The number on the casting of mine is 4101 I believe. I will try to get a picture of the pump and the gasket buildup and also verify the casting number tomorrow after work. I ordered the gaskets from Dale and I see nothing that even remotely resembles the thick ones that were on mine when I removed it.
  • [Deleted User]
    [Deleted User]
    The 1/4 inch or so stack of gaskets is normal for those Hudson pumps. There are two basic reasons for it. One is the spacing provides exact positioning of the lever in relation to the cam lobe. To give best performance of pump. The second reason is to insulate pump from motor heat thus aiding in prevention of vaporlock,
    Roger
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