Michael,
I would not attempt to add the hole the way you are proposing. As
mentioned by someone earlier in the thead you would not want to
get shavings in the differential or hit the gears on the inside with the bit.
Also you would want to make sure you were going in straight. Not to easy of
a thing to do on your back under the car. I would take it off the car,
remove the insides and clamp it up to a mill to do the work.
On a TR6 the Diff comes out a lot easier than a GT6 or Spitfire. You
don't have that 40 foot long bolt to deal with that Andy mentioned. If I had
a TR6 and was overcome with boredom I would remove it, dismantle it and take
the casting to a machine shop if I did not have access to the tools. I would
not recommend the type of plug that is in the oilpan but a plug with a
socket in it so you don't reduce the ground clearance (very important on a
GT6).
On my own car I have a spare unit that will go in if I ever "have" to
change it again. A spare diff is the easiest way to go if you have storage
space.
Good luck,
Richard Ceraldi
71 GT6 MKIII KF166L
Austin, TX
www.exact.com/~gt6mk3
________________________________________________________
To: Ceraldi-ERC004 Richard
Cc: triumphs@autox.team.net@INTERNET; TWALLI@vanheusen.com@INTERNET
From: mmason@lindenwood.edu@INTERNET on Tue, Feb 25, 1997 4:43 PM
Subject: RE: TR6 Differential Drain Plugs
Maybe this is a stupid question, (I always tell my students that
there is no such thing as a stupid question, then have to bite my tongue
when they come up with a real doozy!) but, can a drain plug be added
without having the diff out of the car? I just got the car and
everything seems to be working and tight back there and I don't want to
mess with it until I have to. But I would feel much better having the
fluid drained and replaced and to be able to do it easily in the future.
And besides, standing under a thing full of oil and drilling a hole in
the bottom of it is how I would normally do things! Appeals to my sense
of adventure. Certainly doesn't take much to keep me entertained. :-)
Michael Mason, St. Louis
with my drill and new hat at the ready........
On Tue, 25 Feb 1997, Richard Ceraldi-ERC004 wrote:
>
> ________________________________________________________
> To: triumphs@autox.team.net@INTERNET
> From: vanheusen.com@INTERNET on Tue, Feb 25, 1997 2:06 PM
> Subject: RE: TR6 Differential Drain Plugs
>
> TWALLI@ writes:
> >"Don't you think there are enough places for the oil to leak already? "
He
>
> >also doubts that there is much need to replace the oil, only to keep it
> >topped up.
>
> Your mechanic is off base. With the proper machining the differential
> won't leak any more than the drain plug for your oil pan. I think your
> mechanic is really saying bring your car and your check book to me and
I'll
> take care of both of them. With the correct maintenance your fluids should
> not be leaking.
>
> > Although it goes against instinct (and C.A.R.'s practises). I think
> you'r3e >better off leaving the diff case as Coventry created it.
>
> If you look at the casting you might think Coventry at one time had
> another idea. There is a boss made into the casting for the purpose of
> drilling and tapping. You would not add a feature like this in the casting
> unless you planned on using it for something. But as anyubody in a
> manufacturing environment will tell you they are always looking for a way
to
> reduce costs. I believe the drain plug was cost reduced out. Why not use
it
> as Convetry intended for it to be used.
>
> Richard Ceraldi
> 71 GT6 MKIII KF166L
> Austin, TX
> www.exact.com/~gt6mk3
>
>
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