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RE: Whine in gearbox or differential?

Subject: RE: Whine in gearbox or differential?
From: "Randall Young" <ryoung@navcomtech.com>
Date: Sat, 14 Sep 2002 09:18:31 -0700
Cc: "'triumphs'" <triumphs@autox.team.net>
> I think a minor clarification is in order to what Randall has said. He's
> correct with regard to the rotation of gears in neutral if the car is at
> rest, however if coasting with the gearbox in neutral the
> mainshaft is then
> driven by the differential. The syncro assemblies are spinning.
> If you were
> to engage a gear but not engage the clutch then the gears in the
> transmission would be being driven but by the differential not the engine.

That's all true, but the gear teeth (the part that whines) still turn at
different speeds depending on what gear is selected.

BTW, I agree it's normal for a TR gearbox to whine a little in all gears.  I
can't hear it unless I have the trans tunnel out and the engine shut down,
but it's there.  Might be a little easier to hear on those newfangled cars
with windows <g>

Randall

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