REFLECTOR: Gearbox alignment
Wayne
wowens at darientel.net
Mon Nov 15 17:04:46 CST 2004
----- Original Message -----
From: "Jim Sower" <canarder at frontiernet.net>
To: "Velocity Aircraft Owners and Builders list" <reflector at tvbf.org>
Sent: Monday, November 15, 2004 12:29 PM
Subject: Re: REFLECTOR: Gearbox alignment
> <... How would you measure the axial and radial run-out of the input
> shaft ...>
> I would try a dial indicator.
Im thinking about some kind of fixture to bolt to the crankshaft with a dial
indicator incorporated into it.
>
> <... in order to relocate the mount and improve the alignment ...>
> I would explore the possibility that the gearbox is offset from the engine
> output shaft. You have some sort of bell housing that mounts to the
> engine and to which the gearbox is mounted. If the gearbox case is wrong,
> the input shaft of the gearbox will be offset from the output shaft of the
> engine. That might cause the problem(s) you have. I can't speculate
> further without more facts.
Exactly I believe Marcotte's bell housing has the input shaft hole hole
in the wrong location. The perimeter bolts and the locating pins fit well
onto the engine.
>
> How big is the hole the bushing is in? Could it be replaced by a bearing
> race
It was a bearing before and that helped to mask the misalignmet.
... Jim S.
>
> Wayne wrote:
>
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