[Healeys] Tach question

[Kees Oudesluijs]

You can try a few things. If there is an external loop in the feed (I 
think it is usually a white or yellow wire) you may remove or add one 
loop. Another trick seems to be to add two diodes in series between coil 
and tachometer. A bit more involved but very doable as a DIY person is 
to change the print board inside:


  Smiths RVI - RVC Tachometer conversion board + calibration cable -566-

www.eBay.com nr: 380578001095

Having the tach rebuild is way more expensive so it may be worth to 
experiment a bit with the above.

Kees Oudesluijs




Op 27-11-2020 om 17:05 schreef Fred Wescoe via Healeys:
> Listers,
>
> A few days ago, on one of the lists, there was discussion of a 66 BJ8 
> electronic tach that was not reading correctly after installing a 
> Pertronix ignition setup.  I just installed the Pertronix (points 
> conversion) system and coil and now the tach does not read correctly.  
> The comments mentioned that tachs had to be rebuilt specifically for 
> the pertonics conversion.  Several places that 
> repair/rebuild/calibrate our Smiths tachometer with the Pertronix 
> ignition system were recommended.  As I put the car away for winter, I 
> would like to get the tach repaired/rebuilt/calibrated.  I have lost 
> those comments and therefore the links to those repair sources.  Can 
> anyone refer me to those services?
>
> Thanks as always for the comments and wisdom,
>
> Fred
> 66 BJ8
>
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