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Hi Mike, hope your keeping well. I=E2=80=99m almost certain that this =
was the method used to help lock the inner hub to the spline during the =
engagement process, so as the outer driving ring engages into detent it =
prevented the inner hub jumping back in the opposite direction thereby =
also attempting to disengage the outer ring. I have often thought that =
sandblasting used parts on both that area of the main shaft and hub =
spline may improve the situation. The second gear hub is locked in =
position on the shaft. The later BJ8 steel syncro boxes used a positive =
locating pin to lock the inner hub to the main shaft. As a matter of =
interest some years ago I modified BT7 gearbox parts to include the BJ8 =
system, which also ensures that the hub can=E2=80=99t move back and rub =
on the opposing gears syncro cone when engaged.
Cheers
Larry Varley
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class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>Hi Mike, hope your keeping well. I=E2=80=99m almost certain that this =
was the method used to help lock the inner hub to the spline during the =
engagement process, so as the outer driving ring engages into detent it =
prevented the inner hub jumping back in the opposite direction thereby =
also attempting to disengage the outer ring. I have often thought that =
sandblasting used parts on both that area of the main shaft and hub =
spline may improve the situation. The second gear hub is locked in =
position on the shaft. The later BJ8 steel syncro boxes used a positive =
locating pin to lock the inner hub to the main shaft. As a matter of =
interest some years ago I modified BT7 gearbox parts to include the BJ8 =
system, which also ensures that the hub can=E2=80=99t move back and rub =
on the opposing gears syncro cone when engaged.<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>Cheers<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>Larry Varley<o:p></o:p></span></p></div></body></html>
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