So 5400 rpm's at 60mph is too high? :-) Is the adjustment for the whole rpm
range or are there other adjustments, mine read perfect at idle but gets
progressively worse at higher speeds, The funny thing is the Pos. Gnd. tach
I had in also did the same thing before I replace it with a Neg. What else
could cause a high reading?
Thanks
Randy Rees
Windows NT Test Team
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> -----Original Message-----
> From: Feldman, Jack [SMTP:jack@ihcmail.ih.lucent.com]
> Sent: Monday, November 03, 1997 7:37 AM
> To: 'mgs@autox.team.net'
> Subject: Tachometer adjustment
>
> From Practical and Technical Tips, Part 1, page 138.
>
> "In direct 4th gear on a standard MGB it should read 2,000 rpm at 30
> mph, or 3000 rpm at 54 mph."
>
> I have used a GPS receiver to check the accuracy of the speedometer on
> the 69 C, and an 86 Olds with over 150,000 miles on it. Much to my
> surprise, both of them were accurate!. Don't forget to drill a hole in
> the back of the case so you can adjust the tach without taking it apart
> every time you refine the adjustment. Cover it with a piece of tape when
> done.
>
> Jack
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