This sounds like one of the transistors in the Tach is bad. I think
Mark Olson has a tech tip on his web page on this subject.
Ron Fraser
-----Original Message-----
From: John Slade [mailto:edalsj@igs.net]
Sent: Monday, March 22, 1999 9:38 AM
To: JPKKMK@aol.com
Cc: Tiger List
Subject: Re: tach problems
I'd be interested in any replies that you get on this problem, Patrick.
I have the identical problem, and after watching it for a while, have
concluded that an electronic component is changing its value after the
instrument warms up to a certain temperature. The tach is correct (more
or less) at the start of any run, but after half an hour to an hour, it
starts reading noticeably higher than it should.
John Slade
B9470349
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