1963 w/ 4cyl. tach
 

On my 63, my in dash tach works, but reads about double the rpm it should, I am guessing that it is a 4 cyl tach? Is there a resister or something I can do wiring wise to get it to read correctly?

Thanks
Stan

4 cyl 63 Tempest tachs are VERY rare. 8cyl tachs are available repro.

I only thought the in dash tachs came in the 326 HO and the on dash where the 4 cyl. But I am just talking. Those repop (64 GTO) tachs are the same but are cheap and light needs to be modified but do work.

Well to be honest, I'm not sure, all I know is the car has a factory "in the dash" tach, and it reads double what it should, either that or I have a 10,000 rpm street machine, lol

I just assumed it was a four cyl car and that is why the tach read double?

Thanks Stan

Tach
 

Stan, the tach came out of a 4 banger stick car!

Cool Jim, how do I make it read 1/2 of what it does? I'ts a little nerve racking running down the highway at 6000 grand, lol

PM sent

Any chance the distributor is from a V8? Don't just look at the cap. Remove the cap and count the number of lobes on the cam inside that opens the points.

Here is a pic of an in dash tach in a 326 car

These early factory tachs are a sweet option but so are the clocks in this same space. I have decided to stay with a clock. The factory 90 degree sweep clocks are too difficult to read accurately. I do not have the same problem with my 65 GTO tach but it is a full sweep. FWIW

Yeah, TA, that is exactly what I have, as far as the dist being a V8 correct, the car now has a 400 in it with an HEI, that is why I was assuming that the tach was reading double.

I'm sure there is some way to correct it.

Can you post a pic of the clock? I've never seen one-always a blank in place of...
Thanks

Stan, looks like Dakota Digital make a Universal Signal Interface that will solve the problem. They are $84.95, check it out.

Great Jim, appreciate it much.


Thanks Stan

1964 Tempest/GTO tach.

LeMans clock
 

GTOGOAT, Here is a picture of the clock on my 63 LeMans vert:

Thanks Augie for posting-
I knew they were a little different looking but had never seen one...now I know what to look for

My car is in storage but I recall it looking rather unique like that also. I like it.

The official name is "Rally Clock"

Mine had a 326 V8 with tach. someone removed the tach(not me)stole it.I found a4cy tach looked the same to me at the time.