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Technical Shop => Electrical & Audio => Topic started by: chaps70rt on June 14, 2023, 07:50:11 AM

Title: Voltage Gauge Conversion - Best Connection for 12V Source?
Post by: chaps70rt on June 14, 2023, 07:50:11 AM
I have my dash out of the car and I am in the process of installing my new M&H rally dash harness.   As part of this I have removed the Ammeter in favour of the Voltage Gauge including the bypass (Red to Black).   The voltage gauge of course requires a 12V source.

Most of the posts suggest it can be picked up anywhere, but if I have everything accessible.  What is the best and safest place to take a switched 12V source for the new gauge that is switched with the ignition???     I was thinking of taking a wire jumper off the back of the tach (12V Screw post - see pic).  Will that create a problem??

Thanks in advance ......
Title: Re: Voltage Gauge Conversion - Best Connection for 12V Source?
Post by: chaps70rt on June 16, 2023, 05:00:03 AM
Anyone ???

Which colour harness can I run a jumper from to provide switched power for the new voltage gauge?
Title: Re: Voltage Gauge Conversion - Best Connection for 12V Source?
Post by: Skdmark on June 16, 2023, 09:53:03 AM
What about the 12 V wire that feeds the instrument limiter?
Use a double male spade adapter. There are few options for the adaptors.
Title: Re: Voltage Gauge Conversion - Best Connection for 12V Source?
Post by: dodj on June 16, 2023, 04:52:21 PM
Those ammeter wires you connected together...right there.
Title: Re: Voltage Gauge Conversion - Best Connection for 12V Source?
Post by: chaps70rt on June 17, 2023, 04:48:53 AM
Thanks Dodj ..... I was so consumed with ensuring that this was properly crimped/soldered/taped and heat shrink'd ..... that I completely ommitted
that option.   

Now I feel really stupid.
Title: Re: Voltage Gauge Conversion - Best Connection for 12V Source?
Post by: chaps70rt on June 17, 2023, 04:50:54 AM
Great idea Skdmark.    Are those double pinned adapters readily available?
Title: Re: Voltage Gauge Conversion - Best Connection for 12V Source?
Post by: Jay Bee on June 17, 2023, 05:01:27 AM
Check out Canadian Tire
https://www.canadiantire.ca/en/pdp/motomaster-double-male-female-disconnect-terminal-2-pk-0206957p.html#store=162
Title: Re: Voltage Gauge Conversion - Best Connection for 12V Source?
Post by: chaps70rt on June 17, 2023, 05:17:06 AM
Will do .... .thanks Dodj.    Cdn Tire is five minutes away.    I will head over shortly and start the exercise of removing the entire dash to begin
my harness replacement.   

Title: Re: Voltage Gauge Conversion - Best Connection for 12V Source?
Post by: Jay Bee on June 17, 2023, 05:33:54 AM
Um...don't you mean Jay Bee (lol)  :D
Title: Re: Voltage Gauge Conversion - Best Connection for 12V Source?
Post by: Jay Bee on June 17, 2023, 05:37:31 AM
BTW, your CTC on Hoover shows 8 in stock.
Title: Re: Voltage Gauge Conversion - Best Connection for 12V Source?
Post by: chaps70rt on June 27, 2023, 04:41:09 PM
Thanks "Jay Bee" .... Twice.

How embarrassing.... Senior moment!!