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Dwell/tach hook-up

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Old Apr 29, 2002 | 03:05 PM
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Default Dwell/tach hook-up

I just dug up my old craftsman dwell tach that I used to use back in high school. (Actually looks pretty high quality by today's standards) Problem is I am not sure how I used to hook it up or even whether it can be use with the "modern" HEI ignition on my Vette. It has 2 cords, one black that I know is grounded and a green. Can anyone tell me where the green connects?
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Old Apr 29, 2002 | 04:44 PM
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Default Re: Dwell/tach hook-up (R. Bruno)

I am trying to remember my instruction for the meter are in another city right now. I think the green connects to the negative side of the coil (the lead that goes to the points).

Mark B.
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Old Apr 29, 2002 | 06:08 PM
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Default Re: Dwell/tach hook-up (Sigforty)

Yeah, what Mark said! :cheers:

-Pedro
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Old Apr 29, 2002 | 10:51 PM
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Default Re: Dwell/tach hook-up (R. Bruno)

If you are using a stock HEI, try hooking the green lead to the tach terminal on the cap.
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Old Apr 29, 2002 | 11:22 PM
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Default Re: Dwell/tach hook-up (randy75)

I am using a stock HEI. Which would be the tach. terminal?
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Old May 1, 2002 | 12:49 AM
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Default Re: Dwell/tach hook-up (R. Bruno)

Are you just wanting to use it to verify your tachometer readout?
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Old May 1, 2002 | 12:53 PM
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Default Re: Dwell/tach hook-up (MIKER)

MIKER- Its not so much that. I was just doing some carb. work and running in and out of the car to check idle got me to thinking, "don't I have an old dwell tach around here somewhere?" Found it but forgot how to hook it up.
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Old May 1, 2002 | 01:20 PM
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Default Re: Dwell/tach hook-up (R. Bruno)

I was just curious. I knew that dwell meters were for points style distributors so I knew that you just needed the tach function. Pointless reply I suppose :yesnod:
A while back I purchased an inductive timing light with a built in tach and adjustable advance. The tach feature is really nice to have.
It is an Equus brand. They sell them at Automotive Tool Express for $95 http://shop.store.yahoo.com/autotool...intimlig1.html
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Old May 1, 2002 | 01:44 PM
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Default Re: Dwell/tach hook-up (MIKER)

Miker- I still have the dwell/tach from the old days and a craftsman timing light. The light is a big heavy chrome thing- no plastic on it at all. I hate to part with it but I just went to the site and looked at that light. Nice! I didn't even know they made lights with the tach built in. I guess I may want to come into the new millenium at some point...or at least into the 1980's! :D
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