Broken Spark plug
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New User
Joined: Sep 2010
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Broken Spark plug
I broke the spark plug in half !!! It left the ceramic in the
engine side Can this be drilled out or punched out with out removing the head ?? The hex is not on the plug !! I will need to use an easy out but
I am afraid of punching or drilling the ceramic .........
Any one had this problem before
engine side Can this be drilled out or punched out with out removing the head ?? The hex is not on the plug !! I will need to use an easy out but
I am afraid of punching or drilling the ceramic .........
Any one had this problem before
Senior User
Joined: May 2007
Posts: 349
Likes: 1
From: Helena,MT
If you get any debris in the combustion chamber, a thorough cleaning with a vacuum with a flexible hose that will fit into the sparkplug hole can take care of it(I've used one that was designed for cleaning computers and keyboards)
Cargo Master
Joined: Aug 2003
Posts: 3,263
Likes: 92
From: BC Canada
WELCOME to the Forum...
That is dicey, just one chip of ceramic left wedged between the wall and piston will create havoc.
If you still want to attempt the extraction, load the drill tip with heavy grease (collects debris), go slow and clean often.
Once you have the plug out, run a thread chaser (not a tap) through the hole, again, loaded with grease.
Personally I would be removing the head.... Good luck!
If you still want to attempt the extraction, load the drill tip with heavy grease (collects debris), go slow and clean often.
Once you have the plug out, run a thread chaser (not a tap) through the hole, again, loaded with grease.
Personally I would be removing the head.... Good luck!
Senior User
Joined: Jan 2002
Posts: 251
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From: Ft. Worth, Tx
There are flexible scopes that will let you look inside the cylinder though the plug’s hole. A friend has one related to checking his valves as part of his airplane’s annual inspected. Good Luck! JOW
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Joined: Jul 2005
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Removing Broken Sparkplug Threaded Tip
I had one of those broken sparkplug events this past weekend on a 3.0L V6 in a Ranger. The plug snapped off at the hex. An air nozzle blew the remaining porcelain tip out of the head. It can't fall in due to the shape and the electrode at the tip of the sparkplug. An Irwin/Hanson EX-5 was the perfect sized extractor. You first have to remove the small gasket that is located in the bore of the plug so that the easy-out will seat fully. A liberal application of "Blaster Penetrating Catalyst" is recommended. Adding some heat to the base of the plug and head helped. In order to get a good grasp on the easy-out extractor, a Craftsman 3/8" 12 point socket (short one) will fit perfectly. Be careful and be patient. I let the "Blaster" soak in for a few hours and gave it a second application before applying the heat. There is some risk in all this, with the payoff being about $10.00 worth of harware store parts vs. taking off the head. There was no drilling and no broken bits going in the engine. Take your time if get into one of these situations. LJB
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Genaraljjw
1987 - 1996 F150 & Larger F-Series Trucks
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Dec 29, 2011 04:25 PM
