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RE: Strange Tach

To: "'Bert.Otten@nni.nl'" <Bert.Otten@nni.nl>
Subject: RE: Strange Tach
From: "David M. Hall" <dhall@hp-vcd.vcd.hp.com>
Date: Wed, 29 May 1996 13:59:08 +0100
Bert.Otten@nni.nl wrote:
> Hi all,
> 
> (the real question is in the fourth paragraph)
> 
> But apart from this slight nuisance ;-) , I encountered some other
> thing. When the engine revs above, say 4000 rpm, the tach starts to
> swing wildly up and down sometimes reaching 0 and then again to 6000
> rpm. This happens with O/D engaged or not engaged. 
> The engine performs flawless with these high rpm, at least I don't
> notice any sputtering or an indication that my ignition is not able
> to supply sparks to the engine. 
> What is the problem?
> 
> 
> 

I to have this problem, but it only appears to happen when it is rather warm
out (80+ F), and it happens at all RPM's.  I have an electronic ignition, and
have removed the extra windings from inside the tach.  I also do not know the
cause..

Dave Hall
72 MGB/GT

dhall@vcd.hp.com

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