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Technical Flathead Generator with fan mount question

Discussion in 'Traditional Hot Rods' started by chiro, Sep 2, 2013.

  1. chiro
    Joined: Jun 23, 2008
    Posts: 1,310

    chiro
    Member

    I have a 59A flathead in my AV8 project. I have a generator with the fan mount on the front of it that I want to use so I can run a single belt and give me clearance at the radiator. I'm running an old Edmunds Custom dual carb intake that is correct for the 59A flatty.

    Problem is that the pulley on the generator does not line up with the water pump pulleys and crank pulley. It is about 3/4" too far forward. what's up with that? I have read that a '39 generator works for the application that I'm trying to pull off.

    Are there several different generators with the fan mount where one has the pulley further forward than the other? How do I tell a '39 from a '35 or other year?

    I have posed this question before but in a different way. Didn't get the answer I was looking for, so I re-worded it.

    Anybody

    Thanks,

    Andy
     
  2. 42merc
    Joined: Dec 19, 2010
    Posts: 979

    42merc
    Member

    Need a picture of your Edmunds intake generator mounting area & generator.
    Not real familiar with a 59a Edmunds, but a Fenton for that model is spaced out to accept only a 59a type fan and not a generator. Maybe the same deal with an Edmunds.
    Pictures are worth a bunch of words.
     
  3. chiro
    Joined: Jun 23, 2008
    Posts: 1,310

    chiro
    Member

    The Edmunds intake generator mount is on the exact same plane as the stock intake.
     
  4. thunderbirdesq
    Joined: Feb 15, 2006
    Posts: 7,091

    thunderbirdesq
    Member

    I'll say the same thing I said on your last thread... again... how about a picture of your setup to help determine what you have and what you need... much easier than guessing.
     
  5. 296 V8
    Joined: Sep 17, 2003
    Posts: 4,666

    296 V8
    BANNED
    from Nor~Cal

    Im not up on all the generators …. some my differ like trucks w 2 belts????
    Possibly look at some others?

    The only issue iv seen like this was when I had to space one forward 3/8 to get the belt right
     
  6. chiro
    Joined: Jun 23, 2008
    Posts: 1,310

    chiro
    Member

    Pic below. It was hard to line up the water pump pulleys and the crank pulley in the lens of camera, but this clearly shows the generator pulley is forward of the other three pulleys. Crank pulley is JUST visible below the dizzy.
    [​IMG]
     
  7. Where did you get the water pumps? They look like speedway pumps. What year pumps did you order?
     
  8. alchemy
    Joined: Sep 27, 2002
    Posts: 22,682

    alchemy
    Member

    Is that a stamped steel pulley? Isn't that 8BA stuff? And late 40's on up had a forward mount pulley to run the fan from the crank to the fan. So maybe you have a mismatch of parts.

    Show us a pic from the side so we can see if you have mismatched parts.
     
  9. chiro
    Joined: Jun 23, 2008
    Posts: 1,310

    chiro
    Member

    Nobody's getting it here. There is NO MIS-MATCH of parts.
    Let's try again.

    1--The pumps are correct. They EXACTLY match the stock pumps that came off the engine and they line up with the stock crank pulley. Purchased at Job-Lot Antique Ford in Queens, NY over the counter, in person from a counter guy that actually knows his stuff (I know...hard to believe these days).

    2--The intake is correct. The generator mounting surface position EXACTLY matches the stock intake that came off the engine.

    3--The GENERATOR pulley is too far FORWARD. The pulley does not line up with the other pulleys.

    Okay...here it comes AGAIN...read it slowly for the actual QUESTION...

    ARE THEIR DIFFERENT FLATHEAD GENERATORS WHERE THE FRONT-TO-BACK POSITION OF THE PULLEY IS DIFFERENT AND HOW CAN I GET THE CORRECT ONE THAT WILL LINE UP WITH MY ENGINE? ARE THERE NUMBERS ON THE GENERATORS? WHAT IS THE CORRECT GENERATOR (WHAT YEAR) THAT WILL LINE UP WITH THE 59AB PULLEYS THAT HAS A FAN MOUNT ON IT? I know that generator exists. I have seen it on other builds using a single pulley to drive water pumps and generator in the STOCK position on top of the intake.

    Remember, I'm new to this whole flathead thing. I see a flathead generator at a swap meet and I think, "Cool, a flathead generator. I need one of those!" I don't even stop to think that there might be differences in the belt position of the pulleys from year to year.

    Anybody got an answer to the question?

    Thanks,

    Andy
     
  10. Fortyfordguy
    Joined: Sep 16, 2002
    Posts: 643

    Fortyfordguy
    Member

    Sort of looks like a 1949 type pulley/cooling fan. I'm guessing wrong mix of parts. Pic of the generator with its bracket would help ID things better.

    Read your previous post...the 49-53 generators did NOT incorporate the gen mounting bracket in the generator housing. The 32-48 generators did have the mounting bracket built in to the gen housing. Seems like you may have the 49 genrtr which has a separate bracket. Its hard to know more without additional pics and info.
     
    Last edited: Sep 3, 2013
  11. chiro
    Joined: Jun 23, 2008
    Posts: 1,310

    chiro
    Member

    I do NOT have a 1949 style generator on the engine. I have the type where the generator and mount are integral.

    Okay, here's a picture of what I'm trying to do from another HAMBer's build. He says he is using a '39 generator on his 59AB. Click on the image to make it larger.

    Is the '39 generator unique from other generators with fan mount?
    [​IMG]
     
  12. drmrman
    Joined: Nov 20, 2011
    Posts: 222

    drmrman
    Member
    from new Jersey

    [​IMG]

    I have the same set up with the same intake. it looks like the pulley on your gen is different. Yours has fins behind the pulley. Mine does not. That looks like the 3/4" that you are gaining.

    Find a different pulley? Or pick up a core generator (you can find them in the cl***ifieds for a reasonable price) and swap parts.
     
  13. johnny bondo
    Joined: Aug 20, 2005
    Posts: 1,547

    johnny bondo
    Member
    from illinois

    my friend used a 8ba gen mount and gen, and cut the fins off the back of the pulley, and then bored out the hole in the middle and ground the lip on the mount down. (but i think you can just use a speedway fan mount pulley). i also think he said he relocated the locating hole on the bottom.

    [​IMG]


    but you could use the gen with the mount attached to the front part of the generator. also there are two types of fans that will bolt on, the one i show, and theres also a more rare one with a shorter tube behind the fan if you needed more clearance.
     
  14. johnny bondo
    Joined: Aug 20, 2005
    Posts: 1,547

    johnny bondo
    Member
    from illinois


    does that pulley have the mount for the fan on the front it looks like the sheetmetal type, the ones with the fan are cast.
     
  15. johnny bondo
    Joined: Aug 20, 2005
    Posts: 1,547

    johnny bondo
    Member
    from illinois

  16. chiro
    Joined: Jun 23, 2008
    Posts: 1,310

    chiro
    Member

    ^^^The one pictured does NOT have the fan mount on it. However, I have one with the fan mount on the front that also does not line up. The pulley on BOTH generators have fins on the back. I think I need a generator with fan mount that does NOT have fins on the back side of the pulley. Anybody have an idea on that?

    Andy
     
  17. johnny bondo
    Joined: Aug 20, 2005
    Posts: 1,547

    johnny bondo
    Member
    from illinois

    heres the fans i was talking about too if you need more clearance.

    [​IMG]

    [​IMG]

    [​IMG]
     
  18. johnny bondo
    Joined: Aug 20, 2005
    Posts: 1,547

    johnny bondo
    Member
    from illinois


    they all had little fins on the back some large like you have im sure and some really small like that gen i posted. check your inbox.
     
  19. johnny bondo
    Joined: Aug 20, 2005
    Posts: 1,547

    johnny bondo
    Member
    from illinois

    heres the different pulleys.

    [​IMG]
    [​IMG]
     
  20. F-6Garagerat
    Joined: Apr 12, 2008
    Posts: 2,652

    F-6Garagerat
    Member

    When you get the pulley issue sorted, if u find you need the fan with the long hub, I have one I would sell. They are not easy to find.
     
  21. Bruce Lancaster
    Joined: Oct 9, 2001
    Posts: 21,681

    Bruce Lancaster
    Member Emeritus

    To sort the locations of sheaves a bit: All 8BA type pulleys are farther out on the first sheave than early flatheads because the belt has to clear the sideways distributor. Not sure if yours is actually one of the several 8BA types, but the problem would be there.
    All early flatheads have the close-in pulley and all are at same spacing. Early trucks had double row pulleys, '42-8's had fan on a second pulley, but all of these had that first row in the same plane.
    Any early 1-row setup will be considerably more compact than any 8BA rig even if converted to single sheave. Stock 2 row late setups and the 2 row '42-48 are both quite long stock. 8BA engines can be built with all early stuff up front, a big help in Model A installations.
     
  22. alchemy
    Joined: Sep 27, 2002
    Posts: 22,682

    alchemy
    Member

    OK, if you are so new, don't be so quick to tell us the parts aren't mismatched.

    I know there are at least two if not three different lengths to the intake manifolds. Who's to say the one you replaced was correct for your application. Then you stick a generator that may have been from a different year (still pre-8BA) and you may have compounded the problem.

    Just trying to get some info from you so we can help. If you don't want my help, that's fine with me.

    Where's the clear pic from the side?

    I can tell you from personal experience that if you plan on using 12 innards in your early generator, you will need to custom machine some parts to mount that fan up there. There are very few generator pulleys that will fit the late armature that have the fan boss on the front. There were some aluminum aftermarket ones made decades ago (I found one after I machined my Ford pulley) but they are rarer than hen's teeth.
     
  23. thunderbirdesq
    Joined: Feb 15, 2006
    Posts: 7,091

    thunderbirdesq
    Member

    :confused::confused::confused: What you have here is THE definition of "mismatch of parts", if there was no mismatch it would fit!! ...figure it out yourself, snippy...
     
    Flathead Dave likes this.
  24. chiro
    Joined: Jun 23, 2008
    Posts: 1,310

    chiro
    Member

    ^^^READ. There is NO mis-match of parts relating to the crank pulley, water pump pulleys and intake. I believe there IS a mis-match of the generator. THAT'S the question I have here.

    It is NOT "THE definition of mis-match of parts".

    It IS a typical HAMB thread ending in insults. Sometimes this place just ****s. I'm looking for help, not wise-cracks.

    Andy
     
  25. HotRodMicky
    Joined: Oct 14, 2001
    Posts: 1,793

    HotRodMicky
    Member

    If you would be more friendly , iam sure you would get more
    Help.

    I think your generator pulley is your problem .
    Should be cast and not stick out that far

    A measurement from the generator mounting flange to
    The pulley would help

    I can supply metric measurements if you can handle these


    I hope that is he help you asked for.....
     
    Flathead Dave likes this.
  26. thunderbirdesq
    Joined: Feb 15, 2006
    Posts: 7,091

    thunderbirdesq
    Member

    Uh... ok. :confused: You've got more than a few qualified individuals trying to help and they're all pretty much telling you the same thing. I didn't hear anyone cracking wise. Sometimes it can be difficult to determine someone's tone through a message board, but I wasn't the only one who sensed what I would consider a "poor at***ude" from someone who is asking for help and readily admits their inexperience with flathead tech... good luck.
     
    Flathead Dave likes this.
  27. Big Mac
    Joined: Sep 12, 2007
    Posts: 1,565

    Big Mac
    Member

    The tone of your initial question tells me I'm too stupid to help, so I will p*** on by. Good luck with it mr. Friendly.

    Mac
     
    Flathead Dave likes this.
  28. ALEISTER
    Joined: Apr 5, 2007
    Posts: 295

    ALEISTER
    Member

    I'm starting to mock up an 8BA in a 31 roadster, and have been searching pulley threads, when this popped up. I know "Speedway makes an aluminum alternator pulley with provision for fan mounting, is this an option for use on a generator? Also, any thread with a reply from Mr. Lancaster, or Mr. Van Pelt, is always worthwhile, and full of useful information, Thank you gentlemen for your input.
     
  29. J'st Wandering
    Joined: Jan 28, 2004
    Posts: 1,772

    J'st Wandering
    Member

    You may be best to start out a new thread since this one has gone south.

    The 8BA is a different deal because of the distributor up front. Are you leaving the front as an 8BA or switching it to the 59AB style?

    Neal
     
  30. ALEISTER
    Joined: Apr 5, 2007
    Posts: 295

    ALEISTER
    Member

    8BA style mallory distributor. I'll start a new thread at some point. Just thought I'd pitch the pulley question out there. That and I really wanted to give kudos to the gentlemen I mentioned above, as they never get involved in any drama, just straight, concise, and accurate answers. :)
     

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