Broken exhaust stud removal...

[Russ Maki]

Sounds like you have a well-earned fear of Ezy-Outs! Do you have the square
ones, or the reverse spiral extractors?

I used a square No. 1 extractor I bought at Sears to remove a broken brake
bleeder screw over the weekend. After years of working with the *cringe*
spiral extractors, the square extractors were a welcome discovery. 1/8"
pilot hole, tap it in, turn and out it came. Took all of three minutes, if
you don't count the overnight bath in penetrating oil.

My local Sears stocks the square extractors with the machinist tools, by the
way, not with the drill bits (where the spiral extractors reside. A single
one was well under $10, a set of five was something like $25.

HTH,

Russ Maki
'87 4000q



> From: Gerard <gerard at poboxes.com>
> Subject: Broken exhaust stud removal...
> Reply-To: gerard at poboxes.com
> Date: Mon, 3 Jun 2002 14:59:59 +0200
>
> Hi!
>
> Well, on Saturday I was test fitting the timing belt covers on my MC
> engine along with the pulley and bolts and testing the fit of my crank
> locking tool (2084) that I had made up a while back.
>
> I hadn't paid much attention to the exhaust studs before, but looked up
> and noticed one was indeed broken off in the head.
>
> I just bought some stainless steel studs (+- $12 for 10). They had some
> nifty stud extractors, but they wanted over $50 for them. I then bought
> a new set of eezi-outs *cringe* and a new bit.
>
> I need some advice on how to proceed seeing I already experienced the
> broken off eezi-out *cringe* story when rebuilding my turbocharger.
>
> I have a 3mm bit, but was thinking I should get a 5mm as well in
> order to
> use a slightly larger eezi-out *cringe*.
>
> Would it be wise to also attempt using some other method of getting the
> stud out? I was thinking I'd get the engine on its side, flood the
> region with penetrating spray, let it soak, drill the hole and use a
> wide enough screwdriver to get the stud to move. This worked well with
> some stuck bolts on my alternator. Just jammed the screwdriver into the
> pilot hole and it gripped and turned the bolt out.
>
> Made me wonder what I paid the mechanic for!
>
> G.