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Tacho problem
https://ausmini.com/forums/viewtopic.php?f=2&t=95043
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Author:  wendy [ Wed Mar 15, 2017 11:51 am ]
Post subject:  Tacho problem

I have just replaced the wooden dash with the origional binicle on my mark 2. I also placed the tacho in front of the steering wheel. However I am getting electrical interference, ie it pulses with the electrical pump and drops to zero when the lights are on. I sourced the power for the tacho from the terminals behind the speedo. Could that block be faulty. I also tryed a lead direct from the coil but still the same? any ideas please.

Author:  DavidE [ Wed Mar 15, 2017 1:26 pm ]
Post subject:  Re: Tacho problem

Have you connected the 12v wire (+ve) to the 10v terminal on the thing you call the "block" (it's the voltage regulator)?
The 10v terminal is labelled "I" whereas the 12v terminal is "B".

Author:  wendy [ Wed Mar 15, 2017 4:05 pm ]
Post subject:  Re: Tacho problem

Thank you, I will check that

Author:  simon k [ Thu Mar 16, 2017 8:48 am ]
Post subject:  Re: Tacho problem

and check your earth for the tacho

Author:  wendy [ Fri Mar 17, 2017 6:42 am ]
Post subject:  Re: Tacho problem

It was a wire earthing within the tacho.
Thank you.
Ian

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