[SPAM] RE: headbolt thread q

[fahrvegnugen at cox.net (David Utley)]

When I did this, I just took some carb cleaner, used the straw and sprayed down full blast with a rag around the hole.  Once I finished that, I sprayed pressurized air in to dry it out.  I don't know if you have a compressor, but if not, it should dry out on its own in an hour max...  You could then use the bolt to check and see how dirty it is later.  No extra expense then...  :-)

HTH

David
> 
> From: "Rick Kellner" <rfkellner@snet.net>
> Date: 2004/10/11 Mon AM 09:53:09 EDT
> To: <scirocco-l@scirocco.org>
> Subject: [SPAM] RE: headbolt thread q
> 
> Koabi, I have heard that the preferred method of cleaning the threads in
> the head is to use a 'thread chaser' and not a tap.  The thread chaser
> is not a cutting tool, as in the case of a tap, it is a cleaning tool.
> If your factory threads are damaged then that is another situation.
> 	The next problem is to find a chaser with the correct size and
> pitch.  After searching the web for a while, the best I could do is
> locate a set of chasers.  Unfortunately, the sets of chasers were quite
> expensive (~$100).
> 	A fellow lister suggested making a chaser from an old head bolt.
> He suggested cutting a grove parallel to the bolt shaft (and basically
> perpendicular to the threads).  The grove did not extend the length of
> the bolt, only at the base and approximately 1/4 of the way up. Next,
> the threads on the bolt are cleaned with a file to remove any burrs.
> This grove acts as a trash collector as the threads are cleaned by
> running the bolt through the block. 
> Rick. 
> 
> -----Original Message-----
> From: scirocco-l-bounces@scirocco.org
> [mailto:scirocco-l-bounces@scirocco.org] On Behalf Of koabi
> Sent: Sunday, October 10, 2004 1:54 PM
> To: scirocco-l@scirocco.org
> Subject: headbolt thread q
> 
> It looks to be 1.5 pitch but it's bigger than M10 and smaller than M12 -
> I am trying to get a tap to clean out the threads and it's not going
> well.  What size is it?!
> 
> TIA!
> koabi
> 
> 
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