[Healeys] Tach heat sensitive?

[ggilliam at usol.com]

 I would think it is more likely the temp coefficient of the tach 
 components, with some possible corroded connections.

  Gordy

 On Fri, 19 Aug 2011 15:13:08 +0800, Alan Seigrist wrote:
> Kees -
>
> I can understand your gut feelings on this, but I've had so much 
> surface
> resistance build up in this wire in the past, that the ignition on my 
> BJ8
> would actually stop working.  This was with the aluminum wire they 
> were
> using at the time.  That wire has a great deal of current running 
> through
> it.
>
> Alan
>
> 2011/8/19 Oudesluys <coudesluijs at chello.nl>
>
>> I am not so sure that the relative small temperature variations will 
>> change
>> the resistance of the wire enough to show these variations in 
>> indicated rpm.
>> What could change though is the battery voltage. When starting of, 
>> the
>> battery voltage can be lowish (hence the indicators are not or slow
>> flashing) and will gradually rise when driving any distance.
>> I am not much into electronics but it is just an idea.
>> Any thoughts???
>> Kees Oudesluijs
>> NL
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