I posted here because so many of you are "veteran" racers familiar with older vintage part's.

After MANY years of steady searching I FINALLY have found all the pieces and cables for the tach "system" on my SS/AA project.

Problem is the business end of the tach cable I have is what I think they call "Jones style" has a 7/8 nut and a female square drive.

The tach I want to use is a Stewart Warner - it seems to have a 5/8 nut and would need a small male square drive on the cable end to insert into the tach.

Anyone know if there is a way to adapt these?

Tried a couple of speedo shops already and they have no idea and the newer cables just don't look correct

This stuff is before my time so I might not be using the correct terminology.

I would appreciate any info or suggestions.

Pic of cable end on left - tach end on right

http://www.pegasusautoracing.com/group.asp?GroupID=JONESCABLES

Try these people.

Looks like Danny has given you some great info. I still use a cable driven tach set up and like it a lot.SW 535AH tach with the Mopar tach drive distributor,and I have a vintage Accel BEI tach drive unit to use if need be.

Glad to see you're using the cable system.

Thanks Danny - I did contact Pegasus .. waiting to hear back - they have a adapter on there site but it is for the opposite situation I have.

Have my that they have another solution !

Here is pic of the whole thing.. you can see what I am trying to accomplish.

Quote:

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Here is pic of the whole thing.. you can see what I am trying to accomplish.

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you do realize that your problem comes from the fact that tach is incorrect for that set up? a 5" Jones/Stahl in the gold anodized bracket would be the correct one.

another ? for those in the know, which style is used to go from a mp tach drive distributor to a stewart-warner tach? thanks, dave

Stewart Warner performance gauges distributor
http://www.speedometersolutions.com/speedometer_cable.htm


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Thanks Fred.... I contacted that place also..

3ddart,


Mopar Performance used to offer the cable you need - it had a black plastic sheathing instead of a metal armor.

They come up from time to time at Mopar meets

Here's a place that I came across while looking for a solution for myself..

http://www.texasindustrialelectric.com/speedo.asp

Seem to have a bunch of SW pieces listed

http://cgi.ebay.com/ebaymotors/Jones-Mor...em&pt=Motor

Looks like this guy will make what you need.

thanks danny, fan & fred!!!!!

I ran the same setup back in the early 80's but I'll be darned if I can remember exactly what I used-I think there were different drive ends that got crimped on the distributor end (the cable came from Stewart Warner) You might try Bob's Speedometer,1-800-592-9673, 10123 Bergin Rd. Howell, Mi 48843.

Located mt old tach and cable in the garage today. Is this the same as your's

I ran into that exact same issue thirty years ago, when I installed my SW mechanical tach and only had a Moroso cable.

What I did was to go to a local machine shop, left them both pieces, and they machined an adapter out of a piece of brass. As far as the end that goes into the tach, I brazed the tach end of the cable with a big clump of brass, and then took a file and filed it to fit the keyway in the distributor.

How does it work? Well, the setup is still on there and is what I use, and has been since 1974. I guess you could say it worked out.

I did sorta like Steve1118, I mig welded a lump of ezgrind onto the end of the square cable key and filed it down to fit. Works great with my 30+ year old Moroso mech tach, been over 7700 rpm a few times

Thanks everyone for the help... 1 place got back to me that said they "think" they can cut the end off my cable and add the correct end but it would shorten the cable 4".

Pittsburg - I appreciate you digging out your tach and cable.... Any chance you could post a picture of the end that screws into the tach?

I would like to see exactly what it looks like , maybe I can make something like Craig and Steve mentioned.

If these aren't clear enough let me know.

Those came out terrible!!! Kinda late on a cloudy day. Let me know the angles of pictures you need and I will do a better job tomorrow.

Those will work - Thank You - I just wanted to verify the tach end was just square (no tang)