Help needed with Smiths impulse tacho - Holden Technical Talk

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Fastlane » Holden Forums » Holden Technical Talk » Help needed with Smiths impulse tacho

Help needed with Smiths impulse tacho

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Sig		#1 Posted : Friday, 30 March 2012 9:34:49 PM(UTC)
Rank: Member Reputation: Groups: Registered Joined: 12/07/2011(UTC) Posts: 5		Hey all, I have an old school smiths tacho (RVI5000/00B) I want to fit to my FC but any items I can find on wiring on the net for the tach I have mentions two white wires to connect it in series with the coil but my tach also has two red wires - any ideas ???


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AMunro327		#2 Posted : Friday, 30 March 2012 10:24:46 PM(UTC)
Rank: Member Reputation: Groups: Registered Joined: 27/12/2009(UTC) Posts: 300		The tach has to have battery, so that would be one of the red wires I guess. The other would probably be for the light.


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HQforme		#3 Posted : Wednesday, 18 April 2012 2:58:20 AM(UTC)
Rank: Member Reputation: Groups: Registered Joined: 14/06/2007(UTC) Posts: 582		Sounds right. If that doesn't work i'll dig through my spares to see if i can find the Smith's impulse i used to run. I might have a diagram tucked away with it.
		"Silly modern cars"


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Sig		#4 Posted : Thursday, 19 April 2012 6:46:59 AM(UTC)
Rank: Member Reputation: Groups: Registered Joined: 12/07/2011(UTC) Posts: 5		Thanks for the info, wired up as suggested but I yhink tach might be cactus. Intially she was reading about 4 grand at idle and off the clock with a couple of revs, i found a dash pot to adjust but when winding it back reads almost nothing at idle and needle bounces erratically with revs...... Tell me the bad newa, should I chuck it ??


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