A step in the "keen-sert" tool process is to put greese in the tap grooves
for the filings to stick into...

  Rich

>From: Aristotle Sagan <killer_jupiter@HOTMAIL.COM>
>Reply-To: Aristotle Sagan <killer_jupiter@HOTMAIL.COM>
>To: vanagon@GERRY.VANAGON.COM
>Subject: Re: spark plug blow out
>Date: Thu, 30 May 2002 10:05:22 -0700
>
>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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