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

chevymaz · 02-07-2005, 11:17 PM

Ok here is probably a stupid quetion - I have a 2 wire (red and black) tach that I want to use to setup my idle and fuel mixture. The instructions with the tach show it hooking to a point type distributor however I have the HEI.
So my question is will this tach work and how do I hook it up?

Thanks
Greg

Blue85 · 02-07-2005, 11:44 PM

There is a tach terminal on your dist cap right beside were the battery power wire hooks up, wichever wire was supposed to hook up the coil for the point gets hooked up to the tach terminal now. A standard female spade will plug right in.

1STtimePRo'71 · 02-08-2005, 12:58 AM

Good post. I'm sure I'll run into this. What a great message board!

chevymaz · 02-08-2005, 02:02 PM

Thanks for the help....Isn't this a great place to get info?

71Chevy4-speed · 02-08-2005, 07:55 PM

The cap on the HEI will have it written right on it for the connector for the tach, your tach might of actually come with the conncetor, mine did at least.

02-07-2005, 11:17 PM	#1
chevymaz What are you looking at? Join Date: Jul 2003 Location: Kellyville,Oklahoma Posts: 308	Tach Question Ok here is probably a stupid quetion - I have a 2 wire (red and black) tach that I want to use to setup my idle and fuel mixture. The instructions with the tach show it hooking to a point type distributor however I have the HEI. So my question is will this tach work and how do I hook it up? Thanks Greg __________________ 1971 GMC LWB 2005 Honda Element 2007 Honda Fit

02-07-2005, 11:44 PM	#2
Blue85 Oilfield Trash Join Date: Sep 2003 Location: Raymore, Sk, Canada, Earth Posts: 3,171	There is a tach terminal on your dist cap right beside were the battery power wire hooks up, wichever wire was supposed to hook up the coil for the point gets hooked up to the tach terminal now. A standard female spade will plug right in. __________________ 14 Dodge 3500 Mega Cab 08 Dodge 3500 Mega Cab 87 Chev 3+3 4x4 80 GMC K10 High Sierra bone stock 70 Chevelle 350SS long term project 68 GMC 3ton Grain Truck/Garbage wagon 50 Pontiac 2 Door Coupe Project "I've got a shotgun rifle and a 4 wheel drive and a country boy can survive" Hank Jr.

02-08-2005, 02:02 PM	#4
chevymaz What are you looking at? Join Date: Jul 2003 Location: Kellyville,Oklahoma Posts: 308	Thanks for the help....Isn't this a great place to get info? __________________ 1971 GMC LWB 2005 Honda Element 2007 Honda Fit

02-08-2005, 07:55 PM	#5
71Chevy4-speed Speed Limit = Floorboard Join Date: Jan 2004 Location: Kasilof, Alaska Posts: 803	The cap on the HEI will have it written right on it for the connector for the tach, your tach might of actually come with the conncetor, mine did at least. __________________ 1971 C20 350, 4-speed - Sold. 1985 K10 350, Built 700r4, Edel 1406, Performer intake, MSD Ign, Hooker Comps, Silverstars, Piaa drivers, LED tails, Toyo A/T 31's, Eaton Posi, the project. "Build for torque, horsepower will follow"

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02-08-2005, 12:58 AM	#3
1STtimePRo'71 Registered User Join Date: Feb 2005 Location: Lake Crystal, MN Posts: 656	Good post. I'm sure I'll run into this. What a great message board!



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