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72 K20 · 12-25-2011, 03:27 PM

This tach only has 2 terminals on it and inside it reads "Connect in series with ignition switch so coil current flows thru tach. Read instruction sheet. Gaurantee void if connected to distributor or ground. or if case is opened

The diagram inside shows the tach connected in series between the switch and the + side of the coil.

I tried to get some pics but can't find the good camera with a closeup option.

Do you still think it will work hooked up as it states with the HEI?

Thanks for the replies !!
Also,, there are no switches or wires to be seen when you take the back off,,just 2 terminals that have no markings, and a socket for the light bulb. I'm guessing this tach is from the early to mid sixties.

I checked out the links provided for Faria but did not find anything for there "older" tachometers.

12-25-2011, 03:27 PM	#6
72 K20 Registered User Join Date: Mar 2011 Location: Brandon,Iowa Posts: 391	Re: Faria tachometer This tach only has 2 terminals on it and inside it reads "Connect in series with ignition switch so coil current flows thru tach. Read instruction sheet. Gaurantee void if connected to distributor or ground. or if case is opened The diagram inside shows the tach connected in series between the switch and the + side of the coil. I tried to get some pics but can't find the good camera with a closeup option. Do you still think it will work hooked up as it states with the HEI? Thanks for the replies !! Also,, there are no switches or wires to be seen when you take the back off,,just 2 terminals that have no markings, and a socket for the light bulb. I'm guessing this tach is from the early to mid sixties. I checked out the links provided for Faria but did not find anything for there "older" tachometers. Last edited by 72 K20; 12-25-2011 at 03:37 PM.