At what point is the clutch supposed to stop slipping?
If 2,000 rpm equals 30 mph, one should be able to reasonably assume that
1,000 rpm equals 15 mph. Therefore, 3000 should equal 45 mph, not 54 mph.
Taking that a bit further, we now have a non o/d MGB taching 5,000 rpm at
75 mph, effectively making an MGB even slower than a Triumph Spitfire.....
Can we perhaps assume "Practical & Technical Tips, Part 1" is not the most
accurate of sources?
Lawrie
----------
> From: Feldman, Jack <jack@ihcmail.ih.lucent.com>
> To: 'mgs@autox.team.net'
> Subject: Tachometer adjustment
> Date: Monday, November 03, 1997 7:37 AM
>
> >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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