[AJD] Drilling and Tapping

[Steve W.]

Cast is not hard to deal with when your just opening up a hole. I would
suggest getting a Heli-Coil kit and using that. That way the hole will
still accept the original cap screw. Now old heat cycled cast (like the
exhaust manifold could be REAL hard to drill).

Steve Williams


----- Original Message ----- 
From: "wb5cys" <wb5cys at sbcglobal.net>
To: "Antique John Deere mailing list"
<antique-johndeere at lists.antique-tractor.com>
Sent: Tuesday, December 21, 2004 5:42 PM
Subject: [AJD] Drilling and Tapping


> There is a small sheet metal plate that bolts underneath my tractor to
cover
> an opening which provides access to the flywheel.  The plate is bolted
to
> cast iron with two 1/2" cap screws.  One of the holes is stripped and
the
> bolt twisted off in the other.
>
> How hard is it to drill and tap 50 year old cast iron?  I have no
experience
> with drilling and tapping, does it require special tools?
>
> Thanks!
>
> Cal B.
> Nacogdoches, Texas
>
> _______________________________________________
> Antique-johndeere mailing list
> http://www.antique-tractor.com/mailman/listinfo/antique-johndeere
>