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1973 Chevy Monte Carlo How to hook up a tachometer

Tiny
SLOWMOVE59
  • MEMBER
  • 1973 CHEVROLET MONTE CARLO
  • V8
  • 2WD
  • AUTOMATIC
  • 193,000 MILES
I changed to a HEI distributor and my old tach,made for point ignition died when i first reved up to 5000 rpm. I think too much voltage on the pickup wire. Now i ´ve bought an original Monte Tach from 1973. How can i hook it up without destroying it again?


http://www.2carpros.com/forum/automotive_pictures/333646_1345_1.jpg

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Thursday, March 19th, 2009 AT 11:38 AM

3 Replies

Tiny
DOCFIXIT
  • MECHANIC
  • 18,828 POSTS
Did you have old Tach hooked up to the tach terminal on the HEI?
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Thursday, March 19th, 2009 AT 1:08 PM
Tiny
SLOWMOVE59
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Yes, I did.
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Thursday, March 19th, 2009 AT 3:57 PM
Tiny
DOCFIXIT
  • MECHANIC
  • 18,828 POSTS
Taht is correct the tach reads each time coil is grounded no power goes from dist to tach that is supplied from cars elect system. Maybe old tach bit the dust
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Thursday, March 19th, 2009 AT 5:14 PM

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