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#98844 01/09/2007 9:11 AM | Joined: Nov 2006 Posts: 3 Moderated | | Moderated Joined: Nov 2006 Posts: 3 | hey guys could use some help with this one. I have a 1964 chevy truck with factory tach and guages. I recently installed a new motor with a msd distributor, msd 6a box, and i called msd to figure out how to hook my tach, and i have gotten like three different answers. I even bought the tach adapter #8920, still no luck. The tach worked before this now it barley moves. anybody know how to hook this up all my wiring is brand new. i haven't hacked anything up, and i don't want to. My tach is the later style doesn't require the SUN transmiter. please let me know thank you
looking for original porcelain signs
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#98845 01/09/2007 9:40 PM | Joined: Dec 2006 Posts: 720 'Bolter | | 'Bolter Joined: Dec 2006 Posts: 720 | IS the dizzy a points triggered or magnetic sensor (hall effect)? If I remember right (rare occurance more & more tho) the older tachometers needed the solid hit from a points trigger to run correctly, whereas the hall effect signals are much weaker & lower voltage, not a good thing for the old tachs.
I'd hit up a couple of the companies that rebuild old stock gauges & ask them about having the guts converted to a modern solid state setup that can use the low voltage signal. That or try to find another stock tach, buy a new tach, & see what you can hammer together yourself. Takes some creativity, but can be done.
1956 GMC 370 dump " 'Tater "1970 VW Volksrod "the Black Bomber" 2007 Chevy Avalanche 2020 Jeep Cherokee Trailhawk, 2005 Harley Davidson FLHTCUI I dig all cars, old and new, whether they were hammered out of American iron, German steel, or Japanese tin cans. Being unable to appreciate them all is missing out on a world of great things.
But thats just MY opinion! :P
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#98846 01/09/2007 9:47 PM | Joined: Sep 2003 Posts: 2,384 Shop Shark | | Shop Shark Joined: Sep 2003 Posts: 2,384 | I dunno, but my experience echoes yours-I bought a used tach cluster for my 64, the tach seemed very slow at first, then quit altogether. Not sure whether it was due to the HEI or just moivng again after many years of non-use. Brian | | |
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