Tach help please - The 1947 - Present Chevrolet & GMC Truck Message Board Network

oldtrux · 03-21-2023, 01:47 PM

Anyone familiar with this tach? 6-8 cylinder??

scottofksu · 03-21-2023, 04:18 PM

I can't offer much in the way of which engine this tach will work for, but I can say it looks to be a later unit if its factory (i.e., without a transmitter box).

I did find this post that includes a picture of an OE-1 by member 1963c-10. Not sure if they are still on here or if that was their tach that was pictured. I believe what you have is a V8 tach, but I am not certain.

https://67-72chevytrucks.com/vboard/...=392461&page=4

oldtrux · 03-21-2023, 04:57 PM

Thank you,I appreciate the help!!

oldtrux · 03-21-2023, 05:04 PM

I guess my next quest will be can i make it work with an hei dizzy? Nothings easy lol

Arne · 03-21-2023, 05:44 PM

Quote:

Originally Posted by oldtrux

I guess my next quest will be can i make it work with an hei dizzy? Nothings easy lol

Take a look at this. Pretty sure the owner (Bob Ashlock) can set you up, regardless of what the original tach was for.

https://ashlocktech.com/tach-adapt-1

oldtrux · 03-21-2023, 08:18 PM

Thank you!

**bhap** · 03-21-2023, 09:07 PM

Ron at Williamson's Instruments in Arkansas is top notch. He just repaired an old Sun tach for me by converting it to solid state. Super nice guy and quick turnaround.

oldtrux · 03-22-2023, 07:15 AM

Quote:

Originally Posted by bhap

Ron at Williamson's Instruments in Arkansas is top notch. He just repaired an old Sun tach for me by converting it to solid state. Super nice guy and quick turnaround.

I will check this out, thanks!

Nanook · 03-23-2023, 12:01 AM

Quote:

Originally Posted by Arne

Take a look at this. Pretty sure the owner (Bob Ashlock) can set you up, regardless of what the original tach was for.

https://ashlocktech.com/tach-adapt-1

100% agree...just purchased one of his units and I am using an original 8 cyl tach with a 6 cyl. (It also will work with the HEI)

oldtrux · 03-23-2023, 10:24 AM

Quote:

Originally Posted by Nanook

100% agree...just purchased one of his units and I am using an original 8 cyl tach with a 6 cyl. (It also will work with the HEI)

Thanks,i have reached out to him!

MikeN · 03-23-2023, 11:14 AM

If that tach works with a points-type distributor, it should work fine on an HEI. There is a TACH terminal on the HEI, just run a wire there from the DIST terminal on your tach.

oldtrux · 03-23-2023, 11:19 AM

Quote:

Originally Posted by MikeN

If that tach works with a points-type distributor, it should work fine on an HEI. There is a TACH terminal on the HEI, just run a wire there from the DIST terminal on your tach.

Oh that would be nice! I will give it a shot!thanks for help

oldtrux · 03-23-2023, 01:16 PM

Ok,so I reached out to Bob at ashlocktech and he told me I should be fine with my DUI HEI dizzy. He went out of his way to research my dizzy to find out! As was mentioned above what a super knowledgeable and nice guy!! Thanks so much for the great info.
Dan

03-21-2023, 01:47 PM	#1
oldtrux Registered User Join Date: Jul 2010 Location: Bancroft, ontario Posts: 555	Tach help please Anyone familiar with this tach? 6-8 cylinder?? Attached Images

03-21-2023, 04:18 PM	#2
scottofksu Registered User Join Date: Nov 2011 Location: Omaha, Nebraska Posts: 437	Re: Tach help please I can't offer much in the way of which engine this tach will work for, but I can say it looks to be a later unit if its factory (i.e., without a transmitter box). I did find this post that includes a picture of an OE-1 by member 1963c-10. Not sure if they are still on here or if that was their tach that was pictured. I believe what you have is a V8 tach, but I am not certain. https://67-72chevytrucks.com/vboard/...=392461&page=4 __________________ Travis' Tribute Truck - 65 C10 Frame Up Restoration http://67-72chevytrucks.com/vboard/s...d.php?t=495073

03-21-2023, 04:57 PM	#3
oldtrux Registered User Join Date: Jul 2010 Location: Bancroft, ontario Posts: 555	Re: Tach help please Thank you,I appreciate the help!!

03-21-2023, 05:04 PM	#4
oldtrux Registered User Join Date: Jul 2010 Location: Bancroft, ontario Posts: 555	Re: Tach help please I guess my next quest will be can i make it work with an hei dizzy? Nothings easy lol

03-21-2023, 08:18 PM	#6
oldtrux Registered User Join Date: Jul 2010 Location: Bancroft, ontario Posts: 555	Re: Tach help please Thank you!

03-21-2023, 09:07 PM	#7
bhap Senior Member Join Date: Mar 2006 Location: Pittsburgh, PA Posts: 265	Re: Tach help please Ron at Williamson's Instruments in Arkansas is top notch. He just repaired an old Sun tach for me by converting it to solid state. Super nice guy and quick turnaround.

03-23-2023, 11:14 AM	#11
MikeN Registered User Join Date: Oct 2007 Location: Marietta, GA Posts: 810	Re: Tach help please If that tach works with a points-type distributor, it should work fine on an HEI. There is a TACH terminal on the HEI, just run a wire there from the DIST terminal on your tach.

03-23-2023, 01:16 PM	#13
oldtrux Registered User Join Date: Jul 2010 Location: Bancroft, ontario Posts: 555	Re: Tach help please Ok,so I reached out to Bob at ashlocktech and he told me I should be fine with my DUI HEI dizzy. He went out of his way to research my dizzy to find out! As was mentioned above what a super knowledgeable and nice guy!! Thanks so much for the great info. Dan



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