Author Topic: TachFilter connectors for a 79  (Read 7348 times)

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Offline AB_in_AUS

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TachFilter connectors for a 79
« on: August 29, 2017, 05:04:59 PM »
Hi Guys,

I'm after the connectors for the tachfilter in my 79. Pls  PM me if anyone has some.

Alan

Offline Vettech

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Re: TachFilter connectors for a 79
« Reply #1 on: August 29, 2017, 05:14:52 PM »
Any more info, the filter, I assume is the Electrical filter (capacitor/condensor) on the input or power side (-12ve) of the tacho. !?...
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Offline AB_in_AUS

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Re: TachFilter connectors for a 79
« Reply #2 on: August 30, 2017, 09:18:11 AM »
The PO had removed the original tach filter. I have a replacement but it didn't come with connectors

http://www.mamotorworks.com/Corvette/product/tachometer-filter-original-look-618561-1

I can source the connector which goes into the HEI distributor but an missing the other one

Thoughts?

Alan

Offline Vettech

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Re: TachFilter connectors for a 79
« Reply #3 on: August 30, 2017, 03:30:21 PM »
Ok standard axial capacitor (also called a condensor) ~2uf 50v working(min) c/w screw mount hole. Those ends are utilux style auto crimp connectors, one is common, but the other is for inside a plastic pluggy thingo, try auto parts shops, jaycars, J.R.Turks or maybe .......... was going to say Altronics, but they have the female spade but not that type of flat male connector with the funny edge bit in their cattledog.
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Offline Vettech

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Re: TachFilter connectors for a 79
« Reply #4 on: August 30, 2017, 03:34:01 PM »
A bit late, but can I ask, R U having trouble with the Tacho.??


Sorry I've just been 2 v dentist and my brain is not on track.
Your capacitor is most likely an "inline feed thru" capacitor.
Basically its de-coupling any spurios noise on the tacho feed and shunts to earth.
Modern tacho's have this type of filtering inbuilt in the input circuitry.
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Offline AB_in_AUS

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Re: TachFilter connectors for a 79
« Reply #5 on: August 30, 2017, 03:42:11 PM »
I was having trouble but everything is working now. I have the tack filter connected but wanted to tidy it up with the original connector so if it fails I can just unplug it from the filter and plug directly into the HEI.

Offline Vettech

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Re: TachFilter connectors for a 79
« Reply #6 on: August 30, 2017, 04:12:33 PM »
Now as per you MAD Website, cct download, it stresses the fact that it must be bolted down, a nice fat earth. If you have trouble with noise in the radio that varies with engine revs, you can decouple the power (+12ve) with a capacitor between the +pos and ground at the radio - but also a VERY heavy earth wire from radio case to a solid fat ground can also help greatly.
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Offline AB_in_AUS

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Re: TachFilter connectors for a 79
« Reply #7 on: August 31, 2017, 07:51:24 AM »
thx