Re: [DMCForum] Heli-coil how-to

["Andrei Cular" <acular@xxxxxxxxxxxxxxx>]

The heli coil kits come with instructions and the slightly more expensive
kits even come with the correct size drill bit.  And you MUST use the
correct size or you will pull the insert out or break the tap.  It is very
easy, drill, tap, put in the insert, put in the bolt.  I use threadlock
just
to make sure the insert doesnt backout.




Andrei



----- Original Message ----- 
From: "cruznmd" <racuti1@xxxxxxxxxxxx>
To: <DMCForum@xxxxxxxxxxxxxxx>
Sent: Thursday, July 03, 2003 8:22 AM
Subject: [DMCForum] Heli-coil how-to


> Ok. I worked on my other valve head until 11:30 last night. I have
> the timing cover cleaned up, new crank seal installed. Valve cover
> cleaned up.
>
> The head went badly. As with the other head, someone long ago,
> snapped off one exhaust stud. I had to dremel off one bolt. The
> others snapped off. I did manage to extract all the studs but the old
> broken off one. One stud welded itself to the exhaust manifold badly.
> When I pried the manifold off the head, I thought the stud was
> staying fixed in the block and the manifold was slipping off of it,
> but what really happened, was the stud remained in the manifold and I
> ripped the threads out of the head.
>
> Now I don't care about the manifold. It's toast and I have a like-new
> set. I want to install a heli-coil in the head because I don't think
> there's enough metal left to tap it out.
>
> Anyone know how to do this?
>
> Rich
> # 5335
>
>
>
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