OK, heres the broken plug that Im dealing with. Its stuck in the head and I need to figure out how to get the remaining pieces out. Get creative if you have to.

The first pic is a pic of the plugs. As you can see the one on the right is broken, and the threaded portion is still in the head. The second pic shows the combustion chamber and the electrode portion of the plug.

Im guessing the best bet would be to try to tap it and back it out, but Im not sure I have the right equipment. Could you offer any other ideas without screwing up the threads on the head? Its soaking right now in PB Blaster. Im gonna go put on the new belts and oil seal and come back and hopefully you guys have some suggestions. I have faith in you

normal and broken plug, you can see the part thats still stuck in the head


combustion chamber and electrode


EDIT: aftermath



Modified by RTW DC2 at 3:01 PM 1/16/2005

 

drill a hole in it and go to sears or home depot and get some of those screw extractors and maybe an extention that is if you have a drill
oh and add some WD 40 or something

might want to try and heat it up as well?

 

what about putting some needle nose pliers in and opening and turning at the same time.

 

weld something to it then screw it out.

that is your safest bet.

you can also try hammering a bolt or screwdriver into the left over then screw it out.

 

you cut cut a slit into the bottom and get a wide *** screwdriver....or jb-weld a pole in there...dont risk welding...

 

does the antiseize stuff really help to prevent this type of thing happening.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by That Dood &raquo;</TD></TR><TR><TD CLASS="quote">you cut cut a slit into the bottom and get a wide *** screwdriver....or jb-weld a pole in there...dont risk welding...</TD></TR></TABLE>

this is what i was thinking so far...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by nightrider &raquo;</TD></TR><TR><TD CLASS="quote">does the antiseize stuff really help to prevent this type of thing happening. </TD></TR></TABLE>

YES!

you've got the head off and STILL can't get it out?

 

Use a large easy-out.

 

what about those drill bits that are cylindrical and tapered...used to drill holes in thick *** metal (i think)....and drill it the direction to screw it out...**** dood...that sucks...

you could use something like this...and notch it in the direction you want it to go.
http://www.wordboost.com/a/Vix....html

 

I would take it to a machine shop and have them look at it. I would think they would be able to figure some thing out. The last thing you need is to strip out the threads on the head.

 

ouch

ryan def try an eays out first

it will not damage the head,
also keep in mind it will only come out one way...and thats the way it went in

good idea with a penetrating oil...
and next time around use anti seize , they made that **** for a reason

 

wow man that is damn gay
how long did you run with thse in there

 

That easy out looks like the best choice I think. But im not sure how it works so Ill have to look into it. Im not gonna try anything tonight, but tomorrow my friend is gonna come over and try to tap it and back it out somehow.

for those who asked, the plugs are relatively new, probably less than 10K on them. These heads arent cheap, and Im trying to avoid as much down time as possible.

Thanks for the help so far

edit: arent!


Modified by RTW DC2 at 11:24 PM 1/29/2004

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by RTW DC2 &raquo;</TD></TR><TR><TD CLASS="quote">That easy out looks like the best choice I think. But im not sure how it works so Ill have to look into it.</TD></TR></TABLE>

The "threads" on it are left hand thread, and are sharp so they bite into the sides of the inside of the plug. As you tighten the easyout, it bites deeper into the plug and twists it out. Real easy. Useful for removing broken bolts, screws, etc...

 

whats plugs?

And these heads are cheap? Ill take some.

 

gotta figure out what size to get. Im guessing Id have to use the easy out from the top side of the head correct? it just turns counter clockwise and tightens as it turns, and eventually should break the plug loose?

 

Is this kit a Right Hand thread or Left Hand thread extractor kit?? And for my problem, I would probably want a LEFT HAND thread kit right? So I could tighten and PULL the plug rather than go in from the combustion chamger side and PUSH the screw out from the bottom?

 

Did you spray the threads with PB Blaster?

Did you try tapping it out with a hammer and screwdriver by placing the screwdriver against the bottom of the electrode?

 

Definitely back the sparkplug back out the way it went in (from the top). If you don't any burrs will wipe out the threads

To measure the inside hole of the sparkplug try inserting the shank of a drill bit. I want to say about 3/8ths, but its a guess. The square shank of an Easy-Out is intended to be used with a tap holder, but a BIG Vise-Grip has always worked well for me (Watch your fingers!).

You might want to consider skimming the bottom of the head and/or Copper-Coating (auto supply store spray can) the head gasket to ensure a good seal.

The adventurous might suggesting milling the head .020-.025 while its off. That's up to you and /or any future plans for the motor.
Good luck!
John

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote &raquo;</TD></TR><TR><TD CLASS="quote"> Did you spray the threads with PB Blaster?
Did you try tapping it out with a hammer and screwdriver by placing the screwdriver against the bottom of the electrode?
</TD></TR></TABLE>
Its soaked with PB Blaster and you cant just tap it out, its threaded in and needs to turn to come out.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Racebrewer &raquo;</TD></TR><TR><TD CLASS="quote">Definitely back the sparkplug back out the way it went in (from the top). If you don't any burrs will wipe out the threads

To measure the inside hole of the sparkplug try inserting the shank of a drill bit. I want to say about 3/8ths, but its a guess. The square shank of an Easy-Out is intended to be used with a tap holder, but a BIG Vise-Grip has always worked well for me (Watch your fingers!).

You might want to consider skimming the bottom of the head and/or Copper-Coating (auto supply store spray can) the head gasket to ensure a good seal.

The adventurous might suggesting milling the head .020-.025 while its off. That's up to you and /or any future plans for the motor.
Good luck!
John</TD></TR></TABLE>

Im definitely going to try the extractor method, but I dont know which thread I need to use in order to back the plug out the way it went in. Left or Right threaded extractor??

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by RTW DC2 &raquo;</TD></TR><TR><TD CLASS="quote">

Its soaked with PB Blaster and you cant just tap it out, its threaded in and needs to turn to come out. </TD></TR></TABLE>

Please think about that one for a while...you're not tapping straight down...you're tapping against the electrode, which will put a moment on the whole thread and hopefully rotate it off....

 

Could try, but the plug is really in there tight. I think the electrode will either just break off, or Ill end up chipping the chamber to bits.

 

I got that little bastard. Thanks for everyones help

 

use a tap die set to chase the threads,
and use anti sieze from now on