Hopefully this Board fixes my Tach problem - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**Already Gone** · 08-28-2020, 06:37 AM

Seen some recent post of the forums here about tachs not reading right cause of HEI's. Couple people mentioned they tried these and it cured their problem. I have a Petronix Distributor in my truck and wrote the seller before I ordered the new board and he said it should work. I will post and let everyone know how it works once installed.

https://www.ebay.ca/itm/Tachometer-C...53.m1438.l2649

**Ol Blue K20** · 08-28-2020, 08:15 AM

Hopefully it works, let us know how it goes.

**LockDoc** · 08-28-2020, 08:42 AM

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I bought a 6 cylinder board from them and rebuilt a non working 8 cylinder tach with it, for my Green '67. So far it is working good. The only problem I had was removing the mounting studs from the old board and installing in the new one. If I do another one I would figure out something different for that.

I think Andy rebuilt one with one of their boards also.

LockDoc

custom10nut · 08-28-2020, 09:18 AM

I’m running the same setup, though I have the Mallory version.
It sounds like the board you’re replacing is the issue to begin with.
I had a factory Tach in my truck and then did the Points to Electronic conversion. I was expecting issues, but everything worked fine. Fast forward twenty years. One day my Tach Just started acting erratically, bouncing at first then reading low.
So I ordered and installed a new one. Problem solved.
Only after I did this, did another board member (Andy) is Find the mother board that is on your post. I could have saved about $40
I am going to order oNe of these to fix my original, just to have one on hand for a future project truck.

Andy4639 · 08-28-2020, 04:39 PM

Here is the thread I did a few months ago on this. Mine is working great with the HEI. The original tach worked also but started giving me trouble.

http://67-72chevytrucks.com/vboard/s...d.php?t=803315

toolboxchev · 08-28-2020, 06:08 PM

Cool, another vendor supporting a 50 year old class vehicle.

This is good news, let us know how it goes!

**D.PASSMORE** · 08-31-2020, 04:02 PM

If you guys don't want to run Petronix, I've used these guys for many years:
https://performancedistributors.com/...nition-system/

They use to be made wholly in USA, not sure about products these day. But, never had a problem with a OEM tach with this setup.

08-28-2020, 06:37 AM	#1
Already Gone 70+ ( Old Skool Club ) Join Date: Nov 2003 Location: Saskatoon, Saskatchewan ,Canada Posts: 9,149	Hopefully this Board fixes my Tach problem Seen some recent post of the forums here about tachs not reading right cause of HEI's. Couple people mentioned they tried these and it cured their problem. I have a Petronix Distributor in my truck and wrote the seller before I ordered the new board and he said it should work. I will post and let everyone know how it works once installed. https://www.ebay.ca/itm/Tachometer-C...53.m1438.l2649 Attached Images __________________ 1972 C10 Custom/Deluxe 613 Highlander 406/700R4 1999 White Tahoe LS 4x2 with Z56 Police Package 1992 K1500 GMC Suburban Members I have personally met: MusicMan70 - HeavyD - ChewyChevy67 - StingRay -71SWB4x4 - 67 Burb - DeadheadNM - too much stuff - bc65 - das601 " Circumsatances Do Not Change Responsibility " " The Sky is not the Limit, Your Mind is." Marilyn Monroe .. RIP Charlie Watts 1941 - 2021

08-28-2020, 08:15 AM	#2
Ol Blue K20 Proprietor of Dale's Corner Join Date: Nov 2012 Location: Vacaville , CA Posts: 16,263	Re: Hopefully this Board fixes my Tach problem Hopefully it works, let us know how it goes. __________________ "Some Days Chickens And Some Days Feathers" Dale XNGH ECV Sam Brannan 1004 R.I.P. 67ChevyRedneck R.I.P. Grumpy Old Man R.I.P. FleetsidePaul

08-28-2020, 08:42 AM	#3
LockDoc The Older Generation Join Date: Aug 2006 Location: Montezuma, Iowa Posts: 25,875	Re: Hopefully this Board fixes my Tach problem - I bought a 6 cylinder board from them and rebuilt a non working 8 cylinder tach with it, for my Green '67. So far it is working good. The only problem I had was removing the mounting studs from the old board and installing in the new one. If I do another one I would figure out something different for that. I think Andy rebuilt one with one of their boards also. LockDoc __________________ Leon Locksmith, Specializing In Antique Trucks, Automobiles, & Motorcycles (My Dually Pickup Project Thread) http://67-72chevytrucks.com/vboard/s...d.php?t=829820 -

08-28-2020, 09:18 AM	#4
custom10nut Registered User Join Date: Apr 2015 Location: East Tn (In the heart of the Smoky Mtns) Posts: 1,893	Re: Hopefully this Board fixes my Tach problem I’m running the same setup, though I have the Mallory version. It sounds like the board you’re replacing is the issue to begin with. I had a factory Tach in my truck and then did the Points to Electronic conversion. I was expecting issues, but everything worked fine. Fast forward twenty years. One day my Tach Just started acting erratically, bouncing at first then reading low. So I ordered and installed a new one. Problem solved. Only after I did this, did another board member (Andy) is Find the mother board that is on your post. I could have saved about $40 I am going to order oNe of these to fix my original, just to have one on hand for a future project truck.

08-28-2020, 04:39 PM	#5
Andy4639 Old member Join Date: Jan 2002 Location: Liberty, & Garden City S.C. , U.S. Posts: 19,945	Re: Hopefully this Board fixes my Tach problem Here is the thread I did a few months ago on this. Mine is working great with the HEI. The original tach worked also but started giving me trouble. http://67-72chevytrucks.com/vboard/s...d.php?t=803315 __________________ 1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs.

08-28-2020, 06:08 PM	#6
toolboxchev Registered User Join Date: Jul 2015 Location: 2nd left past the stump on a dirt road. Posts: 2,629	Re: Hopefully this Board fixes my Tach problem Cool, another vendor supporting a 50 year old class vehicle. This is good news, let us know how it goes!

08-31-2020, 04:02 PM	#7
D.PASSMORE One of the First Join Date: Jan 2000 Location: St. Augustine,FL. Posts: 4,059	Re: Hopefully this Board fixes my Tach problem If you guys don't want to run Petronix, I've used these guys for many years: https://performancedistributors.com/...nition-system/ They use to be made wholly in USA, not sure about products these day. But, never had a problem with a OEM tach with this setup. __________________ DAVID PASSMORE ST AUGUSTINE ,FL ZIP 32084 '71 SWB K/10 CUSTOM DELUXE (Chili) '72 BLAZER K/5 Muscle Truck (Mule) '72 LWB K/20 CHEYENNE (Blackie)



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