Hi Charlie,
I'd suggest that you get a 'second opinion' by way of an independent
tachometer. The use of a StroboTach showed me that my tach was not only
optimistic, it was also quite non-linear. I recently had it refurbished by MoMa
and it's now right on the money. There are some decent inexpensive dwell-tachs
on the market. Good luck.
Bud Krueger
52TD
Charlie Baldwin wrote:
> My tach on my TD seems to read high, at least from going through the
> math. At 50 mph indicated the tach says approx. 4000 rpm. The numbers
> on the tach reduction gear box on the back of the generator are
> "R.141/AT17 2-25:1". The tach face itself says Jaeger
> X65021/4
> RPM
> X 100
> 2-1
> K.45
> I've looked at another TD tach and it is the same.
>
> The pulleys under the hood/bonnet are 3 3/4" on the crankshaft and 3
> 1/4" on the generator.
>
> Does any of this seem incorrect?
>
> TIA
> Charlie Baldwin
> '52 TD
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