Subject: [TR] Calling anyone with transmission rebuilding experience - second attempt, part 1

From: aribert neumann <[email-masked]>
Date: Sun, 19 Mar 2023 19:46:53 -0400

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I tried to send this message yesterday but it has not appeared yet so I am
resending it - guessing that I may have had too many (or too large of)
images.   I'll splint it into two messages and reduce the image file sizes
- hopefully this message will go thru.

I'll start off with a quick comment - as I started to type the e-mail
address, up popped suggestions that started with TR.   Third on the list
was "TR3driver" - the late Randall (Young, I think).   I sincerely hope
someone will "fill his shoes" with respect to my questions.   I'm not on
any other Triumph related groups - you are all I've got for input.

I am in the process of reassembling (or trying to) my GT6 transmission -
please don't tune out, conceptually the trans is similar to the big
Triumphs.   On dismantling my trans, I observed that the split collars had
spun on the main shaft, wearing a relief in the collars and raising an edge
on the main shaft.  What keeps the collars from rotating when 1st gear is
in motion?  I am focused on preventing this problem in the future.  When I
rotate first gear on the shaft, the split washers rotate with the shaft.  I
am wondering if the tolerance stack up of the 2nd & 3rd gear bushings,
spacers, etc (from the circlip to the split collars) was too large allowing
first gear to push the split collars forward on the shaft.  What else could
cause this rotation/wear?

Images as follows - old mainshaft with raised edge from the spinning split
washers, good & worn split washers, good split washers nested in the first
gear pocket.    Off in digest mode preparing part 2 of this message.

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<div dir=3D"ltr"><div class=3D"gmail_quote"><div class=3D"gmail_attr">I tri=
ed to send this message yesterday but it has not appeared yet so I am resen=
ding it - guessing that I may have had too many (or too large of) images.=
=C2=A0 =C2=A0I&#39;ll splint it into two messages and reduce the image file=
 sizes - hopefully this message will go thru.</div><br><div dir=3D"ltr">I&#=
39;ll start off with a quick comment - as I started to type the e-mail addr=
ess, up popped suggestions that started with TR.=C2=A0 =C2=A0Third on the l=
ist was &quot;TR3driver&quot; - the late Randall (Young, I think).=C2=A0 =
=C2=A0I sincerely hope someone will &quot;fill his shoes&quot; with respect=
 to my questions.=C2=A0 =C2=A0I&#39;m not on any other Triumph related grou=
ps - you are all I&#39;ve got for input.<div><br></div><div>I am in the pro=
cess of reassembling (or trying to) my GT6 transmission - please don&#39;t =
tune out, conceptually the trans is similar to the big Triumphs.=C2=A0 =C2=
=A0On dismantling my trans, I observed that the split collars had spun on t=
he main shaft, wearing a relief in the collars and raising an edge on the m=
ain shaft.=C2=A0 What keeps the collars from rotating when 1st gear is in m=
otion?=C2=A0 I am focused on preventing this problem in the future.=C2=A0 W=
hen I rotate first gear on the shaft, the split washers rotate with the sha=
ft.=C2=A0 I am wondering if the tolerance stack up of the 2nd &amp; 3rd gea=
r bushings, spacers, etc (from the circlip to the split collars) was too la=
rge allowing first gear to push the split collars forward on the shaft.=C2=
=A0 What else could cause this rotation/wear?=C2=A0=C2=A0</div><div><br></d=
iv><div>Images as follows - old mainshaft with raised edge from the spinnin=
g split washers, good &amp; worn split washers, good split washers nested i=
n the first gear pocket.=C2=A0 =C2=A0 Off in digest mode preparing part 2 o=
f this message.</div><div><br></div><div><br></div><div><br></div></div>
</div></div>

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** [email-masked] **

Archive: http://www.team.net/pipermail/triumphs  http://www.team.net/archive

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From: aribert neumann <[email-masked]>
Date: Sun, 19 Mar 2023 19:52:24 -0400

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Next question - my (new) replacement main shaft is oversize in a couple of
places.   The diameter under the 2nd & 3rd gear bushings (I have opened up
the bushings to only have a light interference fit).  Worst is the diameter
under the rear bearing.  I can install the bearing but I have to hammer it
***hard*** to get it to fit on the shaft - can't be good for the bearing -
guessing I might change the inner race diameter a miniscule amount.  I'm
thinking of sending this main shaft back to Spitbits and reusing my old
main shaft.  I have cleaned up the groove for the split collars on my
lathe.  The other damage on the shaft is on the nose where the cage bearing
rides in the input shaft - this damage is only on one side of the shaft and
only on half of the bearing surface (fore/aft).  I am already going to
replace the cage bearing with a bearing bronze bushing since the surface
inside the input shaft pocket is showing wear also.  The max amount of
surface missing on the nose of the old main shaft is 0.003 in diameter.
 Images:  exploded view from Bentley  manual, nose of the old, worn
mainshaft

Your thoughts and suggestions please - off in digest mode awaiting your
responses.  Trying to formulate a new plan of attack for Monday morning.

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<div dir=3D"ltr"><div class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail=
_attr">Next question - my (new) replacement main shaft is oversize in a cou=
ple of places.=C2=A0 =C2=A0The diameter under the 2nd &amp; 3rd gear bushin=
gs (I have opened up the bushings to only have a light interference fit).=
=C2=A0 Worst is the diameter under the rear bearing.=C2=A0 I can install th=
e bearing but I have to hammer it ***hard*** to get it to fit on the shaft =
- can&#39;t be good for the bearing - guessing I might change the inner rac=
e diameter a miniscule amount.=C2=A0 I&#39;m thinking of sending this main =
shaft back to Spitbits and reusing my old main shaft.=C2=A0 I have cleaned =
up the groove for the split collars on my lathe.=C2=A0 The other damage on =
the shaft is on the nose where the cage bearing rides in the input shaft - =
this damage is only on one side of the shaft and only on half of the bearin=
g surface (fore/aft).=C2=A0 I am already going to replace the cage bearing =
with a bearing bronze bushing since the surface inside the input shaft pock=
et is showing wear also.=C2=A0 The max amount of surface missing on the nos=
e of the old main shaft is 0.003 in diameter.=C2=A0 =C2=A0Images:=C2=A0 exp=
loded view from Bentley=C2=A0 manual, nose of the old, worn mainshaft<br></=
div><div dir=3D"ltr"><div><br></div><div>Your thoughts and suggestions plea=
se - off in digest mode awaiting your responses.=C2=A0 Trying to formulate =
a new plan of attack for Monday morning.</div><div><br></div><div><br></div=
></div>
</div></div>

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From: DAVID MASSEY <[email-masked]>
Date: Mon, 20 Mar 2023 12:39:48 +0000 (UTC)

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 It has been many years (< 25, I think) but I once rebuilt a TR6 transmissi=
on with a used mainshaft that had similar wear on a shoulder like that.=C2=
=A0 There was a thrust washer that fitted up against shoulder.=C2=A0 A few =
years later I was rebuilding it again.=C2=A0 The thrust washer had broken i=
nto parts.=C2=A0 My solution was to buy a new mainshaft (that is a story in=
 itself) along with some other parts.=C2=A0 25 years later that part is sti=
ll soldering on.=C2=A0 (I had to rebuild again for layshaft issues but that=
's unrelated)
I would be very reluctant to reuse that mainshaft.=C2=A0 The raised ridge i=
s not what worries me it is the fact that the edge of the grove is not squa=
re and the thrust applied by the helical gears will point load the split co=
llars and they will fail again.=C2=A0 The TR6 transmission si probably diff=
erent but the basic design is similar and the force loading is also similar=
.=C2=A0 Helical gears are sued to keep tooth noise down but the fact that t=
hey are wound in a helical manner around the axis means the forces applied =
to the gears is at an angle to that axis.=C2=A0 Part of that force is used =
to rotate the shaft but the other is applied to the bearings at either end =
of the transmission meaning the split collars in your case will take up tha=
t force as an interface between the shaft and the bearing inner race.=C2=A0=
 I don't have enough experience to say whether the transmission will last a=
 week, month, year or 10 years with that shaft but I would have much more c=
onfidence in a new, quality shaft.
=20
Dave=20

=20
=20
-----Original Message-----
From: aribert neumann <[email-masked]>
To: [email-masked]
Sent: Sun, Mar 19, 2023 6:46 pm
Subject: [TR] Calling anyone with transmission rebuilding experience - seco=
nd attempt, part 1

I tried to send this message yesterday but it has not appeared yet so I am =
resending it - guessing that I may have had too many (or too large of) imag=
es.=C2=A0 =C2=A0I'll splint it into two messages and reduce the image file =
sizes - hopefully this message will go thru.
I'll start off with a quick comment - as I started to type the e-mail addre=
ss, up popped suggestions that started with TR.=C2=A0 =C2=A0Third on the li=
st was "TR3driver" - the late Randall (Young, I think).=C2=A0 =C2=A0I since=
rely hope someone will "fill his shoes" with respect to my questions.=C2=A0=
 =C2=A0I'm not on any other Triumph related groups - you are all I've got f=
or input.
I am in the process of reassembling (or trying to) my GT6 transmission - pl=
ease don't tune out, conceptually the trans is similar to the big Triumphs.=
=C2=A0 =C2=A0On dismantling my trans, I observed that the split collars had=
 spun on the main shaft, wearing a relief in the collars and raising an edg=
e on the main shaft.=C2=A0 What keeps the collars from rotating when 1st ge=
ar is in motion?=C2=A0 I am focused on preventing this problem in the futur=
e.=C2=A0 When I rotate first gear on the shaft, the split washers rotate wi=
th the shaft.=C2=A0 I am wondering if the tolerance stack up of the 2nd & 3=
rd gear bushings, spacers, etc (from the circlip to the split collars) was =
too large allowing first gear to push the split collars forward on the shaf=
t.=C2=A0 What else could cause this rotation/wear?=C2=A0=C2=A0
Images as follows - old mainshaft with raised edge from the spinning split =
washers, good & worn split washers, good split washers nested in the first =
gear pocket.=C2=A0 =C2=A0 Off in digest mode preparing part 2 of this messa=
ge.

Archive: http://www.team.net/pipermail/triumphs=C2=A0 http://www.team.net/a=
rchive

[email-masked]

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<div style=3D"color:black;font: 12pt Arial, Helvetica, sans-serif;">
<div> <font size=3D"3">It has been many years (&lt; 25, I think) but I once=
 rebuilt a TR6 transmission with a used mainshaft that had similar wear on =
a shoulder like that.&nbsp; There was a thrust washer that fitted up agains=
t shoulder.&nbsp; A few years later I was rebuilding it again.&nbsp; The th=
rust washer had broken into parts.&nbsp; My solution was to buy a new mains=
haft (that is a story in itself) along with some other parts.&nbsp; 25 year=
s later that part is still soldering on.&nbsp; (I had to rebuild again for =
layshaft issues but that's unrelated)</font></div>

<div><font size=3D"3"><br>
</font></div>

<div><font size=3D"3">I would be very reluctant to reuse that mainshaft.&nb=
sp; The raised ridge is not what worries me it is the fact that the edge of=
 the grove is not square and the thrust applied by the helical gears will p=
oint load the split collars and they will fail again.&nbsp; The TR6 transmi=
ssion si probably different but the basic design is similar and the force l=
oading is also similar.&nbsp; Helical gears are sued to keep tooth noise do=
wn but the fact that they are wound in a helical manner around the axis mea=
ns the forces applied to the gears is at an angle to that axis.&nbsp; Part =
of that force is used to rotate the shaft but the other is applied to the b=
earings at either end of the transmission meaning the split collars in your=
 case will take up that force as an interface between the shaft and the bea=
ring inner race.&nbsp; I don't have enough experience to say whether the tr=
ansmission will last a week, month, year or 10 years with that shaft but I =
would have much more confidence in a new, quality shaft.<br>
</font></div>

<div> <br>
</div>

<div style=3D"clear:both">
<div style=3D"color:black;font:12pt Arial, Helvetica, sans-serif;">
<div style=3D"color:black;font:12pt Arial, Helvetica, sans-serif;">
<div><font size=3D"4">Dave <br>
</font></div>

<div><span style=3D"font-size:10.0pt;font-family:sans-serif;color:black;"><=
br>
</span></div>
<br>
</div>
</div>
</div>

<div> <br>
</div>

<div> <br>
</div>

<div style=3D"font-family:arial,helvetica;font-size:10pt;color:black"><font=
 size=3D"2">-----Original Message-----<br>
From: aribert neumann &lt;[email-masked]&gt;<br>
To: [email-masked]<br>
Sent: Sun, Mar 19, 2023 6:46 pm<br>
Subject: [TR] Calling anyone with transmission rebuilding experience - seco=
nd attempt, part 1<br>
<br>

<div id=3D"yiv0386429821">
<div dir=3D"ltr">
<div class=3D"yiv0386429821gmail_quote">
<div class=3D"yiv0386429821gmail_attr">I tried to send this message yesterd=
ay but it has not appeared yet so I am resending it - guessing that I may h=
ave had too many (or too large of) images.&nbsp; &nbsp;I'll splint it into =
two messages and reduce the image file sizes - hopefully this message will =
go thru.</div>
<br>

<div dir=3D"ltr">I'll start off with a quick comment - as I started to type=
 the e-mail address, up popped suggestions that started with TR.&nbsp; &nbs=
p;Third on the list was "TR3driver" - the late Randall (Young, I think).&nb=
sp; &nbsp;I sincerely hope someone will "fill his shoes" with respect to my=
 questions.&nbsp; &nbsp;I'm not on any other Triumph related groups - you a=
re all I've got for input.
<div><br>
</div>

<div>I am in the process of reassembling (or trying to) my GT6 transmission=
 - please don't tune out, conceptually the trans is similar to the big Triu=
mphs.&nbsp; &nbsp;On dismantling my trans, I observed that the split collar=
s had spun on the main shaft, wearing a relief in the collars and raising a=
n edge on the main shaft.&nbsp; What keeps the collars from rotating when 1=
st gear is in motion?&nbsp; I am focused on preventing this problem in the =
future.&nbsp; When I rotate first gear on the shaft, the split washers rota=
te with the shaft.&nbsp; I am wondering if the tolerance stack up of the 2n=
d &amp; 3rd gear bushings, spacers, etc (from the circlip to the split coll=
ars) was too large allowing first gear to push the split collars forward on=
 the shaft.&nbsp; What else could cause this rotation/wear?&nbsp;&nbsp;</di=
v>

<div><br>
</div>

<div>Images as follows - old mainshaft with raised edge from the spinning s=
plit washers, good &amp; worn split washers, good split washers nested in t=
he first gear pocket.&nbsp; &nbsp; Off in digest mode preparing part 2 of t=
his message.</div>

<div><br>
</div>

<div><br>
</div>

<div><br>
</div>
</div>

</div>
</div>

</div>
** <a ymailto=3D"mailto:[email-masked]" href=3D"mailto:triumphs@au=
tox.team.net">[email-masked]</a> **<br>
<br>
//www.team.net/donate.html</a><br>
Archive: <a href=3D"http://www.team.net/pipermail/triumphs" target=3D"_blan=
k">http://www.team.net/pipermail/triumphs</a>&nbsp; <a href=3D"http://www.t=
eam.net/archive" target=3D"_blank">http://www.team.net/archive</a><br>
<br>
hs/[email-masked]" target=3D"_blank">http://autox.team.net/mailman/opti=
ons/triumphs/[email-masked]</a><br>
</font></div>
</div>

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From: DAVID MASSEY <[email-masked]>
Date: Mon, 20 Mar 2023 13:30:54 +0000 (UTC)

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 That looks like the heat treated, hardened=C2=A0 surface is starting to br=
eak up.=C2=A0 That is what happened to my layshaft.=C2=A0 Another reason to=
 abandon that mainshaft.=C2=A0 If you have an alternate bearing combination=
 that doesn't relay on that surface for the bearing rollers then the harden=
ed surface is no longer critical.=C2=A0 But this is above my pay grade.

BTW, I misinterpreted one of your previous photos.=C2=A0 The split washers =
transfer the lateral forces from the synchro hub to the mainshaft but the e=
nd result is the same, with a compromised groove surface like that the spli=
t collars will fail prematurely.=C2=A0=C2=A0 If you open the grove to clean=
 up the shoulder will the split washers stay in place?=C2=A0 If they fall o=
ut you have serious problems.=C2=A0 Even if they stay in place will it incr=
ease backlash?=C2=A0 Can you get oversized split collars?=C2=A0 Make shims?=
=C2=A0 All this is above my pay grade.
=20
Dave=20

=20
=20
-----Original Message-----
From: aribert neumann <[email-masked]>
To: [email-masked]
Sent: Sun, Mar 19, 2023 6:52 pm
Subject: [TR] Calling anyone with transmission rebuilding experience - 2nd =
attempt, part2

Next question - my (new) replacement main shaft is oversize in a couple of =
places.=C2=A0 =C2=A0The diameter under the 2nd & 3rd gear bushings (I have =
opened up the bushings to only have a light interference fit).=C2=A0 Worst =
is the diameter under the rear bearing.=C2=A0 I can install the bearing but=
 I have to hammer it ***hard*** to get it to fit on the shaft - can't be go=
od for the bearing - guessing I might change the inner race diameter a mini=
scule amount.=C2=A0 I'm thinking of sending this main shaft back to Spitbit=
s and reusing my old main shaft.=C2=A0 I have cleaned up the groove for the=
 split collars on my lathe.=C2=A0 The other damage on the shaft is on the n=
ose where the cage bearing rides in the input shaft - this damage is only o=
n one side of the shaft and only on half of the bearing surface (fore/aft).=
=C2=A0 I am already going to replace the cage bearing with a bearing bronze=
 bushing since the surface inside the input shaft pocket is showing wear al=
so.=C2=A0 The max amount of surface missing on the nose of the old main sha=
ft is 0.003 in diameter.=C2=A0 =C2=A0Images:=C2=A0 exploded view from Bentl=
ey=C2=A0 manual, nose of the old, worn mainshaft

Your thoughts and suggestions please - off in digest mode awaiting your res=
ponses.=C2=A0 Trying to formulate a new plan of attack for Monday morning.

[email-masked]

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<div style=3D"color:black;font: 12pt Arial, Helvetica, sans-serif;">
<div> <font size=3D"3">That looks like the heat treated, hardened&nbsp; sur=
face is starting to break up.&nbsp; That is what happened to my layshaft.&n=
bsp; Another reason to abandon that mainshaft.&nbsp; If you have an alterna=
te bearing combination that doesn't relay on that surface for the bearing r=
ollers then the hardened surface is no longer critical.&nbsp; But this is a=
bove my pay grade.<br>
</font></div>

<div><font size=3D"3">BTW, I misinterpreted one of your previous photos.&nb=
sp; The split washers transfer the lateral forces from the synchro hub to t=
he mainshaft but the end result is the same, with a compromised groove surf=
ace like that the split collars will fail prematurely.&nbsp;&nbsp; If you o=
pen the grove to clean up the shoulder will the split washers stay in place=
?&nbsp; If they fall out you have serious problems.&nbsp; Even if they stay=
 in place will it increase backlash?&nbsp; Can you get oversized split coll=
ars?&nbsp; Make shims?&nbsp; All this is above my pay grade.<br>
</font></div>

<div> <br>
</div>

<div> <br>
</div>

<div> <br>
</div>

<div style=3D"font-family:arial,helvetica;font-size:10pt;color:black"><font=
 size=3D"2">-----Original Message-----<br>
From: aribert neumann &lt;[email-masked]&gt;<br>
To: [email-masked]<br>
Sent: Sun, Mar 19, 2023 6:52 pm<br>
Subject: [TR] Calling anyone with transmission rebuilding experience - 2nd =
attempt, part2<br>
<br>

<div id=3D"yiv7397812571">
<div dir=3D"ltr">
<div class=3D"yiv7397812571gmail_quote">
<div dir=3D"ltr" class=3D"yiv7397812571gmail_attr">Next question - my (new)=
 replacement main shaft is oversize in a couple of places.&nbsp; &nbsp;The =
diameter under the 2nd &amp; 3rd gear bushings (I have opened up the bushin=
gs to only have a light interference fit).&nbsp; Worst is the diameter unde=
r the rear bearing.&nbsp; I can install the bearing but I have to hammer it=
 ***hard*** to get it to fit on the shaft - can't be good for the bearing -=
 guessing I might change the inner race diameter a miniscule amount.&nbsp; =
I'm thinking of sending this main shaft back to Spitbits and reusing my old=
 main shaft.&nbsp; I have cleaned up the groove for the split collars on my=
 lathe.&nbsp; The other damage on the shaft is on the nose where the cage b=
earing rides in the input shaft - this damage is only on one side of the sh=
aft and only on half of the bearing surface (fore/aft).&nbsp; I am already =
going to replace the cage bearing with a bearing bronze bushing since the s=
urface inside the input shaft pocket is showing wear also.&nbsp; The max am=
ount of surface missing on the nose of the old main shaft is 0.003 in diame=
ter.&nbsp; &nbsp;Images:&nbsp; exploded view from Bentley&nbsp; manual, nos=
e of the old, worn mainshaft<br>
</div>

<div dir=3D"ltr">
<div><br>
</div>

<div>Your thoughts and suggestions please - off in digest mode awaiting you=
r responses.&nbsp; Trying to formulate a new plan of attack for Monday morn=
ing.</div>

<div><br>
</div>

<div><br>
</div>
</div>

</div>
</div>

</div>

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From: Paul Tegler <[email-masked]> mail.backend.jedi.jws.acl:role.jedi.acl.token.atz.jws.hermes.aol
Date: Mon, 20 Mar 2023 16:49:20 -0400

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In prep for stacking gears on the main shaft, you need to pre-install 
the bushes to determine the required thickness of the circlip You se the 
clearance by selecting the right thickness washer.  As stated all too 
often you need to RTFM.   improper assy will be short lived. You'll be 
pulling the tranny again MUCH sooner than expected as 2nd gear CRUNCH 
will not be avoidable when the clip goes out again. You even need to pay 
attention to which side of the clip faces the splines. The SQUARE edge 
needs to face the spline lips.
The rounded one leads to exactly what has destroyed your shaft as pictured

ptegler

On 3/19/2023 7:52 PM, aribert neumann wrote:
> Next question - my (new) replacement main shaft is oversize in a 
> couple of places.  The diameter under the 2nd & 3rd gear bushings (I 
> have opened up the bushings to only have a light interference fit).  
> Worst is the diameter under the rear bearing.  I can install the 
> bearing but I have to hammer it ***hard*** to get it to fit on the 
> shaft - can't be good for the bearing - guessing I might change the 
> inner race diameter a miniscule amount.  I'm thinking of sending this 
> main shaft back to Spitbits and reusing my old main shaft.  I have 
> cleaned up the groove for the split collars on my lathe.  The other 
> damage on the shaft is on the nose where the cage bearing rides in the 
> input shaft - this damage is only on one side of the shaft and only on 
> half of the bearing surface (fore/aft).  I am already going to replace 
> the cage bearing with a bearing bronze bushing since the surface 
> surface missing on the nose of the old main shaft is 0.003 in 
> diameter.   Images:  exploded view from Bentley  manual, nose of the 
> old, worn mainshaft
>
> Your thoughts and suggestions please - off in digest mode awaiting 
> your responses.  Trying to formulate a new plan of attack for Monday 
> morning.
>
>
>
> [email-masked]  **
>
> Donate:http://www.team.net/donate.html
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-- 
Paul Tegler
[email-masked]   www.teglerizer.com

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    <p>In prep for stacking gears on the main shaft, you need to
      pre-install the bushes to determine the required thickness of the
      circlip You se the clearance by selecting the right thickness
      washer.  As stated all too often you need to RTFM.   improper assy
      will be short lived. You'll be pulling the tranny again MUCH
      sooner than expected as 2nd gear CRUNCH will not be avoidable when
      the clip goes out again. You even need to pay attention to which
      side of the clip faces the splines. The SQUARE edge needs to face
      the spline lips.<br>
      The rounded one leads to exactly what has destroyed your shaft as
      pictured</p>
    <p>ptegler</p>
    <p><br>
    </p>
    <div class="moz-cite-prefix">On 3/19/2023 7:52 PM, aribert neumann
      wrote:<br>
    </div>
    <blockquote type="cite"
cite="mid:[email-masked]">
      <meta http-equiv="content-type" content="text/html; charset=UTF-8">
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        <div class="gmail_quote">
          <div dir="ltr" class="gmail_attr">Next question - my (new)
            replacement main shaft is oversize in a couple of places. 
             The diameter under the 2nd &amp; 3rd gear bushings (I have
            opened up the bushings to only have a light interference
            fit).  Worst is the diameter under the rear bearing.  I can
            install the bearing but I have to hammer it ***hard*** to
            get it to fit on the shaft - can't be good for the bearing -
            guessing I might change the inner race diameter a miniscule
            amount.  I'm thinking of sending this main shaft back to
            Spitbits and reusing my old main shaft.  I have cleaned up
            the groove for the split collars on my lathe.  The other
            damage on the shaft is on the nose where the cage bearing
            rides in the input shaft - this damage is only on one side
            of the shaft and only on half of the bearing surface
            (fore/aft).  I am already going to replace the cage bearing
            with a bearing bronze bushing since the surface inside the
            input shaft pocket is showing wear also.  The max amount of
            surface missing on the nose of the old main shaft is 0.003
            in diameter.   Images:  exploded view from Bentley  manual,
            nose of the old, worn mainshaft<br>
          </div>
          <div dir="ltr">
            <div><br>
            </div>
            <div>Your thoughts and suggestions please - off in digest
              mode awaiting your responses.  Trying to formulate a new
              plan of attack for Monday morning.</div>
            <div><br>
            </div>
            <div><br>
            </div>
          </div>
        </div>
      </div>
      <br>
      <fieldset class="moz-mime-attachment-header"></fieldset>
      <pre class="moz-quote-pre" wrap="">** <a class="moz-txt-link-abbreviated" href="mailto:[email-masked]">[email-masked]</a> **

Archive: <a class="moz-txt-link-freetext" href="http://www.team.net/pipermail/triumphs">http://www.team.net/pipermail/triumphs</a>  <a class="moz-txt-link-freetext" href="http://www.team.net/archive">http://www.team.net/archive</a>

</pre>
    </blockquote>
    <pre class="moz-signature" cols="72">-- 
Paul Tegler
<a class="moz-txt-link-abbreviated" href="mailto:[email-masked]">[email-masked]</a>  <a class="moz-txt-link-abbreviated" href="http://www.teglerizer.com">www.teglerizer.com</a></pre>
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