[Supras] Leaky head valley plugs

[Rockey Fox]

You're right on the continued drilling out as the
continuation of resolving a tough situation. I've very
rarely had good luck in actually centering the initial
drill bit that begins the progression of hole sizes as
i usaully have a hand held drill. I have been lucky in
trying larger ez-outs as I go along as you get more
surface contact as the ID (of the drilled hole) gets
larger. Usually one side gets close to the threads of
tapped hole first and that's where I start delicately
prying the plug away from the mated threads.

Nice tech tip you're building here by the way,
Rockey 91T

--- berniek at technicaldevelop.com wrote:

> Rocky:
> 
>     Thanks for the response.  I'll give it a try. 
> Just ordered new plugs
> from Champion Toyota.  I have silikroil, liquid
> wrench and other pentrating
> oil here.  If that does not work, there is another
> old trick:  Drill out the
> old plugs with progressively larger drills until
> just a thin shell with the
> threads on the OD is left.  Then "cave in" the shell
> from the OD with a
> hammer and punch.  I have drills up to 1-1/2" which
> should be plenty if I
> need to resort to that technique.
> 
>     Curious happening about ordering from them:  I
> found Toyotaparts4u in NC
> to have the same pricing as Champion on about $2K of
> other parts I bought,
> but they wanted $700 for a new '90 engine wiring
> harness.  Jeff Watson had
> one in stock for $411.  Could be that the NC place
> looked up the wrong part.
> 
>         Bernie
> 
> PS:  All of this for a 17 year old car starts to
> make me wonder where my
> senses are.  I'm just getting the beginning of rust
> bubbles around the rear
> fender wells, and hate doing body work, although I
> do gas weld.  A friend of
> mine just bought a 2002 Porsche 3.6 liter 911 for
> $38K.  Yeah, its not
> cheap, but nothing of any real value in a fun car is
> cheap today.  I sound
> like an old codger in saying this, but the '60's
> were good from that
> perspective.  My new '65 GTO tripower convertible
> when I was 22 was less
> than $4000, only about 25% more than a Tempest. 
> Today, a reasonable
> performance car is at 50% more than a Camry, let
> alone 65%-75% more than a
> decent Hyundai sedan or Chevy Cobalt.
> 
> 
> ----- Original Message ----- 
> From: "Rockey Fox" <supr91tt at yahoo.com>
> To: <berniek at technicaldevelop.com>;
> <Supras at supras.com>
> Sent: Tuesday, August 29, 2006 8:51 AM
> Subject: Re: [Supras] Leaky head valley plugs
> 
> 
> > Oh yes the hex depression was essentially round
> from
> > using a cheater bar on the end of my 1/2" drive
> > breaker bar. I actually had sharpened the allen
> socket
> > before trying to break the plugs loose to ensure I
> had
> > as much area contact as possible but that was to
> no
> > avail. I also used a large OD easy out which only
> > worked after I had broken the plug loose with the
> > punch.
> > I'm pretty sure I ended up making several punch
> marks
> > around the perimeter of the stuck plug before it
> > finally broke loose. I think the shock from the
> hammer
> > strikes finally broke the corrosion free which
> allowed
> > the plug to be removed.
> > I used ultra blue on the reassembled threads which
> > will hopefully make it easier to remove next go
> around
> > in a couple of hundred thousand miles....
> >
> > Good luck,
> > Rockey 91T
> >
> > --- berniek at technicaldevelop.com wrote:
> >
> >
>     (balance snipped to save server space)
> 
> 
> 


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