Jake,

Remember to put some heavy duty axle grease on the thread chaser also.
The grease will capture the shavings to keep them from going into the
cylinder.  Turn in about a half-turn, then back out about a 1/4 turn to
clear the shavings, and just keep going slowly.  Pretty easy really.

Keith Hughes

>------------------------------
>
>Date:    Thu, 19 Jan 2006 11:58:05 -0600
>From:    Raceingcajun <raceingcajun47@BELLSOUTH.NET>
>Subject: Re: burred spark plug threads
>
>Jake,
>
>    There is 14 MM and older Fo*ds used 18 MM size threads. You have 14 MM.
>Any good "Flaps" should have a thread chaser, use that instead of a tap. Go
>very slow, by hand until you get it started.
>    Good luck.
>
>