broken spark plug

Anyone have any help? I was changing the sparkplugs on a 1988 4 Runner
I just purchased, and the bolt and the end of the spark plug broke off
leaving the threaded end of the sparkplug in the head. I have put an
e-z out into the broken off section of the sparkplug, but now I have
the e-z out and the remainder of the spark plug stuck in the head. I
have tried to weld a nut onto the end of the e-z out in order to remove
it, but the nut keeps stripping and spinning. I realize if I can just
remove the (easy fix) e-z out from the inside of the plug, I can
probably drill out the plug. Any suggestions. Desperate!!!!

"heferunner" <allorfloors@carolina.rr.com> wrote in message
news:1146533887.121115.6480@g10g2000cwb.googlegroups.com...[color=blue]
> Anyone have any help? I was changing the sparkplugs on a 1988 4 Runner
> I just purchased, and the bolt and the end of the spark plug broke off
> leaving the threaded end of the sparkplug in the head. I have put an
> e-z out into the broken off section of the sparkplug, but now I have
> the e-z out and the remainder of the spark plug stuck in the head. I
> have tried to weld a nut onto the end of the e-z out in order to remove
> it, but the nut keeps stripping and spinning. I realize if I can just
> remove the (easy fix) e-z out from the inside of the plug, I can
> probably drill out the plug. Any suggestions. Desperate!!!!
>[/color]


If the ez out is not broken off you should be able to remove it by turnig
it backwards. To keep from breaking off the ez out in the spark plug threads
use the largest size ez out that will fit. Another option, as you suggested,
is to drill out the remainder of the old spark plug. If you ruin the threads
in the cylinder head you can repair them using a helicoil insert. You should
be able to find a spark plug thread repair kit at most auto parts stores. It
should contain everything you need to repair one spark plug hole. If you go
with the helicoil repair you need to drill out the old spark plug hole
anyway so that may be a better choice from the start.

On Tue, 02 May 2006 14:01:02 GMT, "Mike" <mik@localnet.com> wrote:
[color=blue]
> If the ez out is not broken off you should be able to remove it by turnig
>it backwards. To keep from breaking off the ez out in the spark plug threads
>use the largest size ez out that will fit. Another option, as you suggested,
>is to drill out the remainder of the old spark plug. If you ruin the threads
>in the cylinder head you can repair them using a helicoil insert. You should
>be able to find a spark plug thread repair kit at most auto parts stores. It
>should contain everything you need to repair one spark plug hole. If you go
>with the helicoil repair you need to drill out the old spark plug hole
>anyway so that may be a better choice from the start.[/color]


The above can work but something else you might consider it this, that
the plug is likley seized and/0r cross hreaded in there anyway so
attempting to remove it without drilling is wasted effort. My suggest
is to try to drill it out but drill about 20 to 30 thousandths small
than thread bore and then when through plug you should beable to
colapse it and remove it with minimal or no material lost in head plug
hole and then you can examine what is left and choice best repair
course. If you do this successfully and theards are not damaged, you
may be able to just run a tap through it to clean it up and be back is
bussiness. When you drill it you want a nice carbide or nitrate bit
and a good 1/2 ich drive drill that can maintain a good low and steady
cutting speed (about 300 to 500 RPM) and keep bit oiled will drilling.
Do not use a smaller high speed drill motor as a good steady low speed
that does not bog is important for a good controled and fast cut.
-----------------
The SnoMan
[url]www.thesnoman.com[/url]

if you put some air in the tailpipe and turn the crank by hand just till
the air blows out the plug hole most of the chips will blow out as you
drill.. i use duck tape to seal up air line in tail pipe..lucas

[url]http://www.minibite.com/america/malone.htm[/url]

On Sat, 6 May 2006 20:29:31 -0400, [email]ds549@webtv.net[/email] wrote:
[color=blue]
>if you put some air in the tailpipe and turn the crank by hand just till
>the air blows out the plug hole most of the chips will blow out as you
>drill.. i use duck tape to seal up air line in tail pipe..lucas
>
>[url]http://www.minibite.com/america/malone.htm[/url][/color]


Nice tip!!! :)
-----------------
The SnoMan
[url]www.thesnoman.com[/url]

<ds549@webtv.net> wrote in message news:10935-445D3F6B-1290@storefull-3258.bay.webtv.net...[color=blue]
> if you put some air in the tailpipe and turn the crank by hand just till
> the air blows out the plug hole most of the chips will blow out as you
> drill.. i use duck tape to seal up air line in tail pipe..lucas
>[/color]

Wow, sounds like you do that a lot.

anyway...

I assume letting WD-40 soak into the threads for a couple hours did not free it up right.

Dan