First off..
What a vicious, nasty post Terry. You ought to be ashamed.

Second. Helicoils will work. But they have limited lifetimes. I know my head
is on borrowed time as the original helicoil, put in by an unknown previous
motor owner, blew out on the highway one day. Seems the helicoil creates a
hot zone that gradually eats away the aluminum.
Well, I JB welded that sucker back in, that lasted about 9 months. Ii re-JB
Welded it back in and I am going on over a year now.
I do suspect someday to running down the road and hearing that musical
little BLAT. BLAT. BLAT.

Best bet is to remove the head, but it can be done with the head in place.
The issue I have with that is where do the aluminum filings go?

tim in san  jose

>
>Snap on has a thread chaser, renewer, that may save the day----
>
>If this doesn't work, a heli coil will be your only savior---
>
>If done carefully, and depending on which plug hole it is-- it could be
>done without yanking the head---
>
>Later,
>
>
>Terry
>
>
>
>E-mail message
>
>
>My spark plug blew out yesterday, I tried to thread it back in and it
>wont go. I think I need a helicoil or a new sleeve? Can the cylinder
>head be removed with the engine in the bus? anyone ever done this. I
>need the bus fixed for Natural bus so I'm running out of time.

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