The Ford Barn

Kerk · 03-25-2020, 11:18 AM

I am looking for Cable driven Tach. info and believe I saw it a while back. Any info is welcome. Kerk [email protected] Thanks

whygoby · 03-25-2020, 12:31 PM

Kerk, I make a reproduction model 674L S/W tach drive gearbox that doesn't require a mounting bracket, but just "floats off the front of the engine. PM me for more details!! whygoby

solidaxle · 03-25-2020, 04:55 PM

Can you be more specific.

V8COOPMAN · 03-25-2020, 04:57 PM

Quote:

Originally Posted by solidaxle

Can you be more specific.

PM "whygoby" for details! DD

solidaxle · 03-25-2020, 05:05 PM

Quote:

Originally Posted by V8COOPMAN

PM "whygoby" for details! DD

I meant the original poster Kerk. Not sure what he is asking.

V8COOPMAN · 03-25-2020, 05:37 PM

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Quote:

Originally Posted by solidaxle

I meant the original poster Kerk. Not sure what he is asking.

Sorry...I blew that one! DD

solidaxle · 03-26-2020, 07:50 AM

I should have been more specific on my specifying.

whygoby · 03-26-2020, 03:55 PM

The reproduction Stewart Warner 674L tach drive unit doesn't require a mounting bracket, or inner flex drive link. The speedo cable that goes to the tachometer head holds the gearbox in place, so the unit just "floats". PM me for more details. Thanks, Doug

GB SISSON · 03-26-2020, 09:38 PM

Is there something simple but not period correct for a tach? I would think some kind of magnet or sensor attached to the crank pulley could be read by a gauge on the dash with 12 volts... ??

flatheadmurre · 03-27-2020, 01:01 AM

Quote:

Originally Posted by GB SISSON

Is there something simple but not period correct for a tach? I would think some kind of magnet or sensor attached to the crank pulley could be read by a gauge on the dash with 12 volts... ??

On 12v you should be able to take the signal from the coil with just about any tach as gauge...or are we talking the worlds first dieselpowered flathead

whygoby · 03-28-2020, 05:39 PM

Here is the new 674L tach drive gearbox that just "floats", and doesn't require a mounting bracket. PM me if you want more info. This gearbox shows up in the 1942 Stewart Warner master catalog.

GB SISSON · 03-28-2020, 08:55 PM

Quote:

Originally Posted by flatheadmurre

On 12v you should be able to take the signal from the coil with just about any tach as gauge...or are we talking the worlds first dieselpowered flathead

You got the diesel powered part right. No coil and the engine manufacturer no longer sells a tach drive for this model. 99 percent of the rest of the truck is still 47 ford. I can google it. I DO like that floating tach drive for my proper flathead powered vehicles.

flatheadmurre · 03-29-2020, 03:10 PM

Quote:

Originally Posted by GB SISSON

You got the diesel powered part right. No coil and the engine manufacturer no longer sells a tach drive for this model. 99 percent of the rest of the truck is still 47 ford. I can google it. I DO like that floating tach drive for my proper flathead powered vehicles.

With some luck your alternator has the W connection it´s for tach drive.
Lots of the big trucks has this.
If you don´t have it open up the alternator install a wire to one of the stator windings where they attach to the rectifier and there you have you tachdrive signal.

03-25-2020, 11:18 AM	#1
Kerk Senior Member Join Date: May 2010 Posts: 642	Cable driven Tach. info . I am looking for Cable driven Tach. info and believe I saw it a while back. Any info is welcome. Kerk [email protected] Thanks

03-25-2020, 12:31 PM	#2
whygoby Senior Member Join Date: May 2010 Location: Nevada Posts: 254	Re: Cable driven Tach. info . Kerk, I make a reproduction model 674L S/W tach drive gearbox that doesn't require a mounting bracket, but just "floats off the front of the engine. PM me for more details!! whygoby

03-25-2020, 04:55 PM	#3
solidaxle Senior Member Join Date: Mar 2011 Location: upstate NY Posts: 478	Re: Cable driven Tach. info . Can you be more specific.

03-26-2020, 07:50 AM	#7
solidaxle Senior Member Join Date: Mar 2011 Location: upstate NY Posts: 478	Re: Cable driven Tach. info . I should have been more specific on my specifying.

03-26-2020, 03:55 PM	#8
whygoby Senior Member Join Date: May 2010 Location: Nevada Posts: 254	Re: Cable driven Tach. info . The reproduction Stewart Warner 674L tach drive unit doesn't require a mounting bracket, or inner flex drive link. The speedo cable that goes to the tachometer head holds the gearbox in place, so the unit just "floats". PM me for more details. Thanks, Doug

03-26-2020, 09:38 PM	#9
GB SISSON Senior Member Join Date: Jan 2014 Location: Orcas Island Washington Posts: 4,916	Re: Cable driven Tach. info . Is there something simple but not period correct for a tach? I would think some kind of magnet or sensor attached to the crank pulley could be read by a gauge on the dash with 12 volts... ?? __________________ Owner/Operator of 'Jailbar Ranch' on the side of Mt. Pickett. Current stable consists of 1946 1/2 ton pickup turned woodie wagon with FH V8, 1947 Tonner Pickup (red) mostly stock with exception of a cummins 6at turbo diesel, 1946 Tonner Pickup (green) with 226 cu in 6 cyl flathead, 1979 Toyota landcruiser wagon, completely encased in 1947 Ford Jailbar sheet metal. Ok, cornbinder rear fenders..... 'Rusty ol' floorboards, hot on their feet' (Alan Jackson)