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- - Hole in Factory Tachometer? (https://67-72chevytrucks.com/vboard/showthread.php?t=776518)

Tripmiester

12-02-2018 05:43 PM

Hole in Factory Tachometer?

2 Attachment(s)

Hi
I am new to the 67-72 Chevy forum, but a long time owner of multiple of these trucks.

I am installing a factory tach in my 1970 longbed, I noticed this hole on the top of the tach housing.
Before I install it I want to make sure this hole is not for a light or something else.
Any info would be much appreciated!

Trip

Metaldoc

12-04-2018 05:47 AM

Re: Hole in Factory Tachometer?

It looks like the calibration adjustment

too much stuff

12-04-2018 09:19 AM

Re: Hole in Factory Tachometer?

Quote:

Originally Posted by Metaldoc (Post 8398361)

It looks like the calibration adjustment

That is correct. The factory just had a small piece of tape over it.

Tripmiester

12-04-2018 10:32 AM

Re: Hole in Factory Tachometer?

Thanks Metaldaoc!
Is that a calibration hole?

Trip

Metaldoc

12-04-2018 05:25 PM

Re: Hole in Factory Tachometer?

My timing light has an accurate tach so I adjust that screw to match my vehicle tach to my timing light.

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