[Mgs] tachometer with electronic ignition

[PaulHunt73]

Incidentally if you _do_ have a wire from the fusebox white to the coil 
+ve it's probably bypassing the tach pick-up.

PaulH.


On 09/06/2023 11:26, PaulHunt73 wrote:
>
> Where are the coil and CSI picking up their 12v supplies from?
>
>
>
> On 09/06/2023 10:24, R. Martin Rogovein wrote:
>>
>> Hey all,
>>
>> After 15 years of staring at it in it's parking space, I am almost 
>> done with a full mechanical restoration of my 70 B.
>>
>>
>> Engine, overdrive, brakes, steering, suspension, carbs, and more all 
>> completely rebuilt.
>>
>> Loads of new parts.
>>
>>
>> No paint and bodywork yet, but I'll get there.
>>
>>
>> Replaced the points ignition with a CSI electronic unit, wired 
>> everything up per their diagram.
>>
>> Car runs great, but the Tachometer registers nothing.
>>
>>
>> the tach is the RVI unit with three connectors (M and F bullets for 
>> 12v from fusebox through tach to coil) and a tongue for switched 12v 
>> to the electronics. Ground is though one of the mounting bolts.
>>
>>
>> Is there a wiring trick to get this tach to work with electronic 
>> ignition, or do I have to either get a later tach or order one of the 
>> conversion boards?
>>
>> (like this https://spiyda.com/smiths-rvi-rvc-conversion-board.html)
>>
>>
>> thx
>>
>> -- 
>> --------------------------------------------------------
>> Israel is the most dramatic country in the world.
>> Everybody's engaged. Everybody argues.
>> When I leave Israel, I get a little bit bored, you know?
>> --Shimon Peres
>> --------------------------------------------------------
>>
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>>
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