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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