[6pack] Gear selector shaft detents

[Berry]

You may have been able to drill&tap the holes without removing the rods,
depending on how much lead was on the tap.
Berry


-----Original Message-----
From: John North <johncnorth at gmail.com>
To: Triumph 6 Pack <6pack at autox.team.net>
Sent: Mon, Dec 16, 2013 10:53 am
Subject: Re: [6pack] Gear selector shaft detents


I was able to get the loose ball back in the shaft using a dummy shaft
about 3" long with the end cut at a 45 degree angle.   I used 1/2" rod
from Home Depot.   I pushed it in from the back using the real shaft
while easing the ball back into the slot with a screwdriver from the
front.   This allowed me to get back to square one with all three
shafts in place and operating.

So then I extended the dummy shaft idea and made three about 5" long
and inserted them from the front as I withdrew the shafts.   These
kept the detent balls in their channel.   I shook out the two
interlock balls that prevent selecting more than one gear at a time as
I inserted the dummy shafts.

So now I have the top cover clear and can drill and tap...

John North
1976 TR6

On Sun, Dec 15, 2013 at 9:10 PM, Sally or Dick Taylor
<taylorturbo6 at yahoo.com> wrote:
> Hi,John --- I drilled out these plugs and tapped out the holes using a
7/16"
> tap. (Don't recall the TPI) The thread depth isn't as deep as would
normally
> be the case, due to the larger hole to begin with. But there's not much
> pressure being exerted on these socket head SET SCREWS, and I recall them
> being covered. It's been years, so forgive the lack of details. The
downside
> of using the 7/16" set screws was they don't come in the short length
> necessary, and must be shortened to be flush with the top of the case. If I
> had to do this over today, I'd make new plugs rather than tap for set
> screws.  Not a chance of this, however, as there's a 5 speed taking it's
> place!
>
> Dick
>
>
> On Sunday, December 15, 2013 2:51 PM, John North <johncnorth at gmail.com>
> wrote:
>
> Ok, I see that these plugs are NA at TRF, Moss and Vic Brit...  I
> looked over the Mcaster Carr site, couldn't find what I need although
> they have just about everything known to man.  Anybody got a lead on
> where I can get them?
>
> John North
> 1976 TR6
>
> On Sun, Dec 15, 2013 at 12:02 PM, Larry Young <cartravel at pobox.com> wrote:
>> Go to the maintenance page at vtr -
>> http://www.vtr.org/maintain-index.shtml
>> and look at the end of "Rebuilding the Triumph TR Transmission Part 2".
>> It
>> explains how to overhaul a top cover and drill one for overdrive switches.
>> For the late boxes you have to drill out the plugs.  You may be able to
>> match the plugs at your local auto parts store or drill and tap them for
>> plugs like the early covers.  Top covers are probably one of the most
>> neglected transmission parts.
>> Larry Young
>>
>>
>> On 12/14/2013 2:56 PM, John North wrote:
>>>
>>> I am removing the shafts to drill and tap for overdrive switches...
>>> The manual says to unscrew the screw plugs that hold the springs and
>>> balls, but my 76 does not have screwed plugs, they appear to be
>>> interference fit plugs, see this pic...
>>>
>>> http://tinyurl.com/oufsve6
>>>
>>> So there is no way that I can see to get the plugs out.
>>>
>>> I did remove one of the shafts and of course the ball fell into the
>>> shaft tube and left the spring sticking into the tube.  I can get the
>>> spring and ball back into what I think is the right position with a
>>> screwdriver and seal puller, but haven't been able to get it back into
>>> the hole to allow the shaft to pass under it.
>>>
>>> So two questions, first, what's the best way to handle the other two
>>> shafts and not make the same mistake...  and second, how do I get the
>>> ball back in?
>>>
>>> Any help appreciated
>>>
>>> John North
>>>
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>>>
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> ________________________________________
>
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