When my car was converted by the PO to Negative Earth, he did everything
right except the tach. He just wired it in as it would have been in a
positive earth car. It originally had a mechanical tach, the one he used is
labeled "positive earth." When I followed the PDLJMPR negative earth
conversion for the tach, changing the loop direction, and
removing/replacing the component inside, it still didn't work. I assumed it
got fried by being hooked up backwards. It does twitch a little in
acknowledgment of the fact that the car is running but it doesn't indicate
engine RPM. If it is fried is it repairable? If it isn't any suggestions?
Phil Vanner
Mk1 Midget
(on the road last Saturday)
-----Original Message-----
From: Bruce Woodward [SMTP:brucewoodward@kconline.com]
Sent: Sunday, February 14, 1999 9:30 PM
To: David Ramsey
Cc: spridgets@autox.team.net
Subject: Re: reversing the earth
I was assuming the tach didn't work because of the polarity change.
Alan stated "Assuming tach was changed" and "the loop in the back"
is this referencing a loop behind the tach or something changed in the tach
itself?
tach face says Positive earth thus I thought only way it would work. this
was my primary reason for moving back to positive earth as I don't want a
radio or other high tech 90's stuff. If I wanted 90's tech, I'd go buy a
Z3
thanx for your response
brucewoodward@kconline.com
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