See, that's the problem with these stupid square head plugs. I'd love
to know what the logic is behind using these things instead of good old
hex heads. Oh well. I'd say the best thing to do is make sure you
jack the car up good and high so you have the best access possible to
that plug. See if you can get any size wrench on there well enough to
loosen it up, try some metric wrenches or something. Next thing is to
try some vice grip type pliers. But be careful, remember that the
gearbox casing is aluminum and so those threads are delicate.
Definitely put a brand new plug in when you have finished the job. I
got one from the local auto parts store, and replaced the one in the
diff while I was at it.
Tim Holbrook
1971 TR6
--- Mark Creamer <mcreamer@cinci.rr.com> wrote:
> Can't blame the PO, because he didn't do his own work. But his
> mechanic...well, if he was here tonight, I'd...
>
> Oh well, seems someone used the wrong wrench on the square head plug,
> and
> mostly rounded it off. And it's in so tight you'd think he used an
> air
> wrench. Gotta order a new one, and hope I can get the old one out.
> Any tips
> on working with this soft-metal square plug when it's seized and
> already
> partially rounded?
> ----- Original Message -----
> From: "Timothy Holbrook" <tjh173@yahoo.com>
> To: <6pack@autox.team.net>
> Sent: Wednesday, October 04, 2000 12:41 PM
> Subject: Re: Gear box oil change
>
>
> > There is a drain plug on the bottom of the gearbox which should
> have a
> > regular hex head (on my car, it is a 3/4" SAE head and it has a
> > magnetic bit on it that collects metal shavings inside the gbox).
> The
> > fill plug is on the side of the gearbox, driver side. It has a
> small
> > square head, which you can remove with a 7/16" wrench. Refill the
> > gearbox using an oil pump available at most auto parts stores.
> Don't
> > know what to make of a GL4/GL5 oil. The safest bet is to go with a
> > straight GL4 only. You can order this stuff by the quart from TRF
> if
> > you can't find it locally. Oh, make sure you don't pull the drain
> plug
> > until you can find and remove the fill plug, otherwise you could be
> SOL
> > (i.e. empty gearbox and no way to drive the car to a mechanic for
> help
> > if you need it).
> >
> > Tim Holbrook
> > 1971 TR6
> >
> >
> > --- "Creamer, Mark" <CreamerM@cintasmail.com> wrote:
> > > Well, I'd like to check/change the oil in my gearbox as a first
> step
> > > to
> > > address my O/D slippage problem, but I'm not sure I'm on the
> right
> > > track
> > > based on my research so far in Bentley. Just a few questions to
> get
> > > me
> > > going...
> > >
> > > 1. I see the drain plug (the square one, right?). But is there a
> > > separate
> > > fill plug?
> > > 2. Is this all a below-the-car operation? If so, how do I refill?
> > > Turn the
> > > car upside-down ? ;-)
> > > 3. I found a GL4/GL5 gear oil 85W90. Sufficient?
> > >
> > > Gotta admit, this is fun!
> > > Thanks guys.
> > >
> > > Mark Creamer
> > > 76 TR6
> > > CF53032UO
> >
> >
> > __________________________________________________
> > Yahoo! Photos - 35mm Quality Prints, Now Get 15 Free!
> > http://photos.yahoo.com/
>
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