tach problems

Hey, do you have a problem with something on your vehicle? Post the problem here someone may just have the answer for you.

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Sue Salsburg
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Current Racecar: 56 MGA, 61 Jaguar MK2, 2013 Fiesta
Location: Mays Landing, NJ

tach problems

Post by Sue Salsburg »

Starting last season, the MGA has developed an annoying(what else?) habit of eating tachs. Figured at first it was the ancient MSD, so that was replaced & a new AutoMeter tach installed. OK for 1 race & then fried again. Replaced under warranty. Now running a Lucas sport coil & we're on tach #4. Seems to work for a while & then fry. Paul(Thanks) suggested we run the hot back to the fuse block, which we did. What about a resistor? Any suggestions on the brand of tach? What are we missing? Sue
56 MGA, 61 Jaguar, 13 Fiesta
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eimc
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Location: Harrisburg Pa.

tach

Post by eimc »

Hi Sue & David . Weburned up a few tachs on a 934 porsche with a electromotive total engine control . What finally cured it was making a stand alone harness connected to ignition and power source only. We elimated any surces through the fuse panel or any surces through the body wiring harness . Hope this helps Paul PS We have great luck with auto meter tachs..
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Champ
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Post by Champ »

Sue,
I sent you an email with some info from one of our old tachometer engineers. Let me know if you don't see it in your inbox.
#7 ITC
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