Bob,
Careful now! Remember that 5/16" UNC has 18 thread pitch which is the same
as Whitworth. The difference is that UNC has a 60 degree pitch versus 55
degrees for Whitworth. So a visual inspection or even threading a nut onto
the existing shaft will not reveal an obvious difference. But then as a
machinist you knew that - right?
Cheers,
Lew
-----Original Message-----
From: Bob Grunau [mailto:grunau.garage@sympatico.ca]
Sent: Tuesday, March 29, 2005 11:31 AM
To: Lew Palmer
Subject: RE: PA-0531 gearbox
Hi Lew,
I think my gearlever has been cut off as the knob thread is 5/16"- NC,
hardly thirties British!
Still waiting for more responses but will probably go for the short lever.
Bob
-----Original Message-----
From: Lew Palmer [mailto:lpalmer@roundaboutmanor.com]
Sent: Tuesday, March 29, 2005 11:14 AM
To: grunau.garage@sympatico.ca
Subject: RE: PA-0531 gearbox
Bob,
For a while, I had a longer shift lever on my J2 (spare transmission) and
found the longer lever to impart an unwieldy feel to the shifting. The lever
felt too long making gear shifts require too much movement. I like a short
"snappy" feel to the shifting, so a shorter throw a nicer feel. I wouldn't
want a longer lever except in a large sedan where you don't expect to have
the need for a short throw - regardless of what is "original".
Cheers,
Lew
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