Re: Help! Drain plug head broke off! How do I get the threaded part out?!?!?!On Wed, 14 May 2008 15:58:15 -0700 (PDT), oldfart
<alan.westcoast@gmail,com > wrote:
>Easy Out works great until you twist it and the easy out breaks off
>leaving a hardened piece of steel in the hole. It can be removed at
>this point but it takes a cutting torch. OF
The larger the easy out, the less likely a certain amount of force will
snap it. With no head on this thing, there is no "bolt stretch" holding the
thing in place. That leaves either thread locking compound (you wouldn't do
that though:) or dissimilar metal corrosion. You might break the latter
free with some judicious use of a punch... tap the stud near but not on the
threads as you don't want to peen them over. That would be like adding
thread lock:)
Someone suggested milling a screw driver slot with a Dremel and if you can
go that route, that is probably the easiest and least risky. Whack the bolt
with a bunch (it really works) and unscrew the broken stud... again, there
should be no resistance to backing it out once appropriately broken free.
Escalation from that point would involve an easy out. Do make sure you get
one large enough to not break. Again, this is not a bolt that's been in
place for 200 years and we all know you didn't thread lock it:) Get an easy
out that's maybe 50% of the diameter of the stud to be safe. Since you have
the internal engine environment just on the other side of this thing, you
want to not send a lot of debris inside with the drilling operation. You
might not have to drill, but easy outs are tapered and oil bolts are
typically short and you might need to punch through if the geometry
dictates. I personally would try and drill a PARTIAL DEPTH pilot hole first
without punching through. Then I'd go with a nice sharp drill at the final
size (note that easy outs will dictate what size drill to use). For this
second drilling operation, I'd fill the flutes of the drill with grease to
catch the shavings and go very slowly... nibbling away and re greasing. The
magnetic stud will probably just keep all the debris connected to it anyway
but it doesn't hurt to be safe.
Good luck!
Mike
--
Mike W.
96 XR400
70 CT70
71 KG 100 (Hodaka-powered)
99 KZ1000P (training)
99 KZ1000P (rider)
00 Beta Rev-3