79 tach issue
Thread Starter
Burning Brakes
Joined: Oct 2004
Posts: 801
Likes: 17
From: Middletown Delaware
79 tach issue
The tach on my 79 will not read below 1100rpm. This started right after I reanstalled the ignition module on the distributor with the paste under the module. The tach also would not zero. I replaced the tach board and performed the zero set. The tach now zeros fine in the car but still will not show below 1100rpm reading when it should be at 750rpm. Also it is off about 500rpm at 2000. Tach filter not installed. So its seem to be doing the same thing as the old board did except it will now go to zero. Dave
Racer
Joined: Mar 2002
Posts: 406
Likes: 1
From: Maroochydore QLD
I had my Tach/speedo cluster out on the weekend to fix a faulty wiper switch, my tach doesnt read right either and I wanted to check the circuit board while I had it out but it wasnt obvious to me how to take the tach out of the housing to get to the board, you obviously have done that, I need to take it out again on Sunday (fix to wiper switch didnt work) so do you want to share with me how you get to it please?
Thanks, Dennis.
Thanks, Dennis.
Race Director
Joined: Jan 2000
Posts: 12,399
Likes: 247
From: San Jose CA
I had my Tach/speedo cluster out on the weekend to fix a faulty wiper switch, my tach doesnt read right either and I wanted to check the circuit board while I had it out but it wasnt obvious to me how to take the tach out of the housing to get to the board, you obviously have done that, I need to take it out again on Sunday (fix to wiper switch didnt work) so do you want to share with me how you get to it please?
Thanks, Dennis.
Thanks, Dennis.
Race Director
Joined: Jan 2000
Posts: 12,399
Likes: 247
From: San Jose CA
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