Re: Now I've gone and done it!!

Posted by Bob on June 16, 2007 at 21:14:46 from (69.178.229.154):

In Reply to: Now I've gone and done it!! posted by Keith-OR on June 16, 2007 at 18:30:19:

Here's a method that works every time, with a minimal chance of getting metal filings in the cylinder. (Copied from a post I made on the "N" Board. Your's is an OHV engine, but the same procedure WILL work.

Read and HEED the "CAUTION, though!

!!!!CAUTION!!!! If you try the procedure below, there's a possibilty of an explosion in the cylinder (IF there's any remaining gas vapor in there), that will blow carbon and rust out the sparkplug hole, into your face. Keep your face (and other body parts) out of the "line of fire", on the odd chance this DOES happen, and wear eye, face, and ear protection. (DON'T ask me how I know this!)

The easiest way I know to remove broken spark plugs is to pull the hood/gas tank, set it safely out of the way, then heat the remains of the broken-off spark plug red hot with an oxy-accetylene torch. Allow it to cool to ambient temperature, then remove what's left of the spark plug with a screw extractor. If it doesn't come loose easily, remove the extractor and repeat the heating/cooling process, and try again.

This SHOULD make the remains of the plug come out easily, minizing any metal filings being chewed off by the extractor, and dropping in the cylinder.

(Heating makes the remains expand, and, since they can expand in the threads, they elongate, then shrink, and break free of the threads in the head, as it cools.)

Replies:

• Re: Now I've gone and done it!! Keith-OR 22:39:00 06/16/07 (0)

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