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06-26-2016, 05:46 PM | #1 |
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1940 flathead tach drive distributor?
is there such an animal as a distributor with a tach drive that fits a 1940 flathead?
I found a cool looking vintage tach but it looks to be cable driven, not electric. Am I looking at $$, $$ squared, or $$$ cubed? |
06-26-2016, 05:55 PM | #2 |
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Re: 1940 flathead tach drive distributor?
I believe Bubba posted pictures of one conversion last year.
Bruce
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06-26-2016, 06:12 PM | #3 |
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Re: 1940 flathead tach drive distributor?
Ran off the crank and Stewart Warner made them. Original intent I think was for industrial stationary motors. I would be a lot of work to make one fit in a 40 ford
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06-26-2016, 06:18 PM | #4 |
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Re: 1940 flathead tach drive distributor?
Williamson's if I remember correctly can convert a cable drive tach to electric. Don't know if the cost would off set the coolness of the tach in question. JMO
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06-26-2016, 06:19 PM | #5 |
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Re: 1940 flathead tach drive distributor?
I think it would be very difficult to do on a 40 with the fan configuration but I wonder if it could be done using the rear plate on the generator like is used on some tractors.
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06-26-2016, 06:34 PM | #6 | |
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Re: 1940 flathead tach drive distributor?
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Quote:
http://www.fordbarn.com/forum/showth...ner+tach+drive Here's the very-nicely backyard-engineered distributor that Bubba posted a while back. |
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06-26-2016, 07:18 PM | #7 |
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Re: 1940 flathead tach drive distributor?
From this link, you can see that these SW rigs don't come cheap, and obviously DO sell!
http://www.fordbarn.com/forum/showth...ner+tach+drive $1600.00 plus labor for "cool"? Bruce
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06-26-2016, 08:41 PM | #8 |
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Re: 1940 flathead tach drive distributor?
SW made a mechanical tach "package" for 39 DeLuxe and 40 Fords with the crank mounted fan. There, of course, is the tach unit itself, with a bracket to mount it to the steering column tube. The cable is driven off of the generator. Straps around the generator hold a rod that in turn hold a clamp that supported the drive in front of the generator. Kind of Rube Goldberg and almost impossible to find a complete assembly today. Much rarer than the normal drive that ran off of the crank nut.
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06-26-2016, 08:51 PM | #9 |
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Re: 1940 flathead tach drive distributor?
Amazing info in such a short amount of time!
I seemed to recall a tractor part as a solution, and then there is the convert-the-tach option. Good to know! Considering the cost of a 6v positive ground tach maybe this isn't too much of a pipe dream |
06-26-2016, 11:22 PM | #10 |
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Re: 1940 flathead tach drive distributor?
This is a picture of a complete n.o.s. 39, 40, and i suppose 41 SW generator driven tach assembly. Happy hunting!!
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06-27-2016, 05:24 AM | #11 |
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Re: 1940 flathead tach drive distributor?
Scott,
I did one of these for a customer in Maine except he had a generator device that triggered his tach..........you could say it was a mechanical drive for an electronic tach. The casting thickness at the front of the dist housing is very thin so I chose to epoxy the extension to the housing and then gussetted it. Machining the female square in end of the rotor shaft was a bit of a challenge but it all worked out. Charlie ny |
06-27-2016, 05:43 AM | #12 |
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Re: 1940 flathead tach drive distributor?
Scott: A while back someone posted a photo of the 37-41 style distributor with the mechanical Tach. drive molded into the front of the body. They were wondering what it may have come off and there were only guesses such as air compressor or aux generator or air plane. You need a bit of room between the distributor and the radiator to come straight off the distributor.
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06-27-2016, 09:01 AM | #13 |
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Re: 1940 flathead tach drive distributor?
For those who've never seen one, a couple thousand words worth from my ol' '30 hiboy
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06-27-2016, 09:09 AM | #14 |
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Re: 1940 flathead tach drive distributor?
wow, thanks guys!
looks like a tractor generator would be an easier route to take, or modify the tach, or just buy an electric one! this is what I was looking at: tach.jpg |
06-27-2016, 10:30 AM | #15 |
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Re: 1940 flathead tach drive distributor?
Cool gauge, dig the DANGER zone.
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