I've purchased a Speedway pulley meant for an "alternator" (Whatever that is--??!?) to test to see if it will go on a Ford shaft. I think it will, but I have not tried it and actually have no idea where it is right now. If it will work, one of the many lengths of Ford fan will surely clear the distributor and allow deleting that extra row that makes the 8BA toodamnlong for most early swaps. It would still be longer than an early single row engine, but improved. An article on measurements of all the different front end combinations on a flathead has been suggested, and I have enough iron to mock up and measure, but right now it is day 3 of a new academic year and I have no time. This earlier post: http://www.jalopyjournal.com/forum/showthread.php?t=35029&highlight=dimensional+stuff&showall=1 ...has some information but is not really complete, and I didn't have any late parts handy at the time. I try to maintain a sort of "iron Library" of stuff I can measure or mock up to answer questions.
Thanks to everyone for any help that has been offered. Apologies to any that I have may rubbed the wrong way. The HAMB has always been a bit edgy, from my experience. Maybe I was being a bit too sensitive to that. No offense intended to anyone. Andy
I have found on a few intakes that the mount on the generator is actually wider than the mount on the intake. This was preventing the generator from fully seating onto the intake. My remedy was to grind the generator mount down a bit to narrow it up. I have never played with an Edmunds, but it's worth a look. -Mitch
It seems you have either the wrong manifold, generator and/or pulley for a 59A. Just for the fun of it I would measure your manifold and another for a 59A from the rear to the generator mounting surface. I would also measure from where the generator mounts against the manifold in the notched area of the intake to the inside edge (closest to the body of the generator) of the pulley where the belt fits. That should be around 1 1/4". I just went out and measured one of mine and that is what I came up with. Stick with it, you will figure it out.
Oh man... Okay...I'm an idiot and welcome all comments to support that realization. It seems that the generator mounting surface on my stock intake measures 2" from center of the first bolt hole on the manifold and the Edmunds Custom intake that I want to use measures 2 1/2", which would put the generator too far forward as described. So there is the mis-match. Soooo sorry I didn't measure that first before taking up all the time on the forum. Boy, do I feel STUPID. Andy
There seems to be a problem with the old Edmunds intakes and the line up of the pulleys. Had the same problem on my engine when I bought the car. 59 AB engine, -46-48 generator. The intake puts the generator too far off centre up front. See pic. Now I have a Thickstun PM7. All lines up great. The Edmunds intake is on my shelf.
^^^Yup, that's EXACTLY what mine looked like. What's up with that? Good thing Carlisle and Hershey are coming up. Gonna look for another dual pot intake where the carby's are set back to allow the genie to go on top in the original position. This time I'll bring a tape measure...LOL Next round of beers are on me. Andy
Chiro, The Edmunds manifold may have been designed to use the dual belt truck pulleys. The outer one would have let the stock generator move forward some to clear the carb? later,Doug.
Perhaps, but it is only 1/2" too far forward. I don't think that's far enough for a second belt. Andy
so with the use of a pre '39 generator face plate ''78''? on that Edmunds would clear that too far forward deal? I have a later model Edmunds for 59A I wonder what I'll get into with it.
The 2-brush generator that was used on many '38-9 cars was introduced or at least released and numbered in 1937...the "78" nose is what was used with the original '38-9 2 brushes, and the pulley had the gen cooling fan sort of dished to fit this. I have not fully decoded all this stuff, as everything I find seems to differ a little. Most of the gens have the later '41-48 type barrels now, and some have a flat front like '40-48 with matching '39 type pulley...perhaps an aftermarket bit? There are several equivalents to the 78 front, the 79 truck one for taller iron manifold and an 82 one for 60's.
I'm not really sure what I'm going to do about this. I like the Edmunds manifold I have because both carby's feed into a common plenum so I really don't want to swap it out for another dual carb manifold. I'm sure that SOME generator must fit this manifold, but then I'm wondering about finding a spare to have laying around just in case for long road trips. Got Carlisle and Hershey coming up pretty darn fast, so I will probably look for another 2 pot intake that I can run the genny in the stock position. The last alternative, bar finding the fan mounted generator that will fit is milling down the front generator mounting surface on the Edmunds back 1/2" and Tig-ing some reinforcement in on the sides to support the genny being back another 1/2". If I do that, I still have enough room for the genny to clear the front carb and to be in the same plane as the rest of the pulleys. But that's a lot of work. Gonna hold off on doing that until after the fall swap meets and seeing what I can find. Also, I have to look at the numbers on the generators I have after reading what Mr. Lancaster had to say about that. Andy
Numbers are mostly lacking on gen parts, or this stuff would be easy to figgerout! Usually prefixes are cast on the front plate and the iron original fan pulleys, the rest tends to be unmarked. There are dimensional charts galore in the catalog to ID armatures.
I have that same setup on my '32, my generator is a '38 though and the belt lines up fine with the pumps and the Edmunds intake puts the generator in the correct position.
Well, it looks like I'm in the market for another generator. I'll be taking lots of measurements with me to Carlisle and Hershey. Andy
It's not the same manifold. You have the more formed model. Mine is a straight version. Check out the pics and compare. I don't know if one is earlier or later or if Edmunds had more than one version at the time.
^^^Can you take some measurements on that manifold for me? First question is: do both carbs on that manifold feed into a common plenum? Measurements I need: 1--distance from front bolt hole on the manifold (where it bolts to the deck of the block) to the generator mounting surface (should be 2"). 2--distance from the front bolt hole of the front carb to the generator mounting surface (must be at least 8 3/4"). 3--distance from the front bolt hole of the front carb to the front bolt hole of the rear carb. ...Unless that's swap meet picture and you don't actually have that manifold as you previously said you are running a Thickstun. Thanks, Andy
i think on the edmunds mount issue, i think they are meant to run the generator off to the side, and just carry the fan carrier assembly.
That would account for the difference pretty well! I've never touched an Edmunds, but fan only seems likelier than a dimensional screw up that big.
Then what is the point of having the carbs so far back on the manifold other than to clear the generator? I will be bringing my tape measure to Carlisle and Hershey to measure out similar manifolds with the carbs set back. The similar Offy manifold in the Speedway catalog states that the generator will clear the carbs in the stock position. Even if I were to modify the Edmunds by milling back the front generator mount surface 1/2" and Tig-ing in some support on the vertical mount surface (which would be lost by milling out an additional 1/2"), there would be enough clearance for the generator to front carb. Andy
The pic of the manifold laying on the ground between the heads is from internet. Just to show the difference from mine to the one that Groovybaby6 showed on his car. I don't think they are meant to be driven with the generator on the side, since the carbs sit all the way back. I have no time to take pics and measure my manifold until the weekend. But I can help you with that. What type is your manifold, chiro? Any pics?
J.B I would think you have a pre-war intake, where my self and Groovybaby6 have post-war intakes. There is also be a different model Edmunds intake for 8ba with filler hole.
Chiro, if you find another intake and want to cut loose of that edmonds shoot me a line, i've got a '36 gen with dual pulleys off of a 2-ton truck (was running a hydro pump) that I think would fit that set up. Im not looking to sell, but i do need an intake for my Av8 im putting together.
Got the time to check out the manifold today. I had an Offenhauser regular 2 carb intake laying on the shelf and I simply put them together to see if there was any difference. It was. The Edmunds puts the generator 1/4" more in front. See the pics.
Wonder if that means the Offy is also too far forward because I have the exact same Edmunds and it is 1/2" forward of the stock intake. That would put the Offy 1/4" forward of the stock intake.
Did anybody ever figure out what is up with this pulley alignment issue? I have been mocking up my flathead and I have the same problem with my Edmunds intake. The generator pulley is about 1/2" further forward than the water pump pulleys. I have seen a lot of Edmunds intakes of this design out there. Wonder if they were all made this way?
Misalignment caused by mismatched parts. Different offsets for the generators for early flatheads,then early 40's, then 59 series. Just like the OP, you have a couple different era parts bolted together, and surprise, they don't fit.
The Jalopy Journal
