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Hi
I have BN1 Healey with Spiral Bevel diff. The diff functioned fine.
I pulled my spiral bevel diff to bits many years ago and am now putting it back
together. I
have the pinion gear installation sorted ok, with the right shims to give about
the right
pre-load on rotation.
The backlash is set by moving or adding shims between the diff carrier bearings
on either side
of the diff carrier crown wheel housing. This has the effect of moving the
crown wheel
sideways slightly.
Firstly I don't have any shims, I dont recall any when I disassembled the unit.
The diff
backlash measured good before I disassembled the unit, about 6 thou I think. My
memory of
it could be bad !
I see now that I can buy shims if required from some UK sellers, so that's ok.
My big question is. In order to find out what shim width you require you have
to fit the 2
bearings to do a test. Then if shims are required the bearings have to be
pulled off the crown
wheel carrier !! The bearing on the side closest to the crown wheel is
difficult to remove
without damaging the bearing !!
So whats the trick here to do a good setup and not damage the bearings at the
same time
I think I am missing something here.
Any help appreciated.
Spinaway // NZ
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<p style="margin-left:0mm; margin-right:0mm; text-indent:0mm;
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<span style=" font-size:12pt">Hi</span></font></p>
<p style="margin-left:0mm; margin-right:0mm; text-indent:0mm;
margin-top:1.76mm; margin-bottom:1.76mm;"><font face="Times New Roman">
<span style=" font-size:12pt">I have BN1 Healey with Spiral Bevel diff. The
diff functioned fine.</span></font></p>
<p style="margin-left:0mm; margin-right:0mm; text-indent:0mm;
margin-top:1.76mm; margin-bottom:1.76mm;"><font face="Times New Roman">
<span style=" font-size:12pt"><br />
</span></font></p>
<p style="margin-left:0mm; margin-right:0mm; text-indent:0mm;
margin-top:1.76mm; margin-bottom:1.76mm;"><font face="Times New Roman">
<span style=" font-size:12pt">I pulled my spiral bevel diff to bits many years
ago and am now putting it back together. I
have the pinion gear installation sorted ok, with the right shims to give about
the right
pre-load on rotation. <br />
The backlash is set by moving or adding shims between the diff carrier bearings
on either side
of the diff carrier crown wheel housing. This has the effect of moving the
crown wheel
sideways slightly. <br />
<br />
Firstly I don't have any shims, I dont recall any when I disassembled the unit.
The diff
backlash measured good before I disassembled the unit, about 6 thou I think. My
memory of
it could be bad ! <br />
I see now that I can buy shims if required from some UK sellers, so that's ok.
<br />
<br />
My big question is. In order to find out what shim width you require you have
to fit the 2
bearings to do a test. Then if shims are required the bearings have to be
pulled off the crown
wheel carrier !! The bearing on the side closest to the crown wheel is
difficult to remove
without damaging the bearing !! <br />
So whats the trick here to do a good setup and not damage the bearings at the
same time <br />
<br />
I think I am missing something here. <br />
Any help appreciated. <br />
Spinaway //  NZ<br />
<br />
<br />
<br />
</span></font></p>
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