You need to join the free Yahoo Tomahawk group. They had a discussion on
this very topic recently. Here's the URL for the group:

http://groups.yahoo.com/group/piperpa38tomahawkclub/

The discussion started with message number 8415 which, after you've joined
the group, is available on that site's URL I just gave you. You can write in
and ask questions and the guys there will be happy to help you out. Good
luck with your repairs!
Scott Wilson