Brian.  I don't pull legs.  I do however yank chains.  Consider yours
yanked.

Larry

Brian Garrett wrote:

> Larry, are you just pulling our legs or are you serious. Then again I
might
> have misread your post.
>
> Are you saying that a prop repitch will effect the accuracy or
calibration
> of the tach because if you are I must correct you. The tach purely shows
> crankshaft RPM and has nothing to do with peripheral items including the
> prop.  If the tach has a 10% under-read a prop repitch will certainly
allow
> the crank to spin at a different RPM but the 10 % under-read of the tach
> will still be there.
>
> In other words tach error can only (and I emphasize ONLY) be corrected
by
> shop calibration of the tach.
>
> At 02:03 19/01/00 , you wrote:
> >Wrong!  If you repitch, but neglect to inform the tach that you've made
a
> change,
> >the tach will now read the correct figure.  Jeezze, must I explain
> everything?
> >
> >Larry the Stooge
> >
> >John Cooper wrote:
> >
> >> In a message dated 00-01-16 22:35:44 EST, you write:
> >>
> >> >
> >> >  I had a prop shop in Hemet, CA. repitch it to 7148 (combo ) and I
picked
> >> up
> >> >  nearly 90 RPM so there is almost no difference in tach / digital
test
> >> meter
> >> >  reading now.
> >> What am I missing here?  Did you also replace the tach?  Repitching
the
> prop
> >> will have no effect on the tach error, it'll just read wrong ata
different
> >> RPM.
> >>
> >> Curley
> >>
> >>
>
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> >
>
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>
> Regards
>
> Brian Garrett
> Melbourne
> Australia
> (613) 9459 1779
> Sonerai II VH-JGB
> 415C VH-???
>
>
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