Board index Flathead Power-Technical Questions, Answers, and Suggestions Knuckles 1947 Gas Tank (help needed)

1947 Gas Tank (help needed)

Moderators: Curt!, Pa

Post Tue Oct 21, 2008 9:54 am

Posts: 38
Location: Stockholm Sweden

I need to find the right tap to chase the thread in the gas valve hole.
I thought it was 3/8 X 18" NPT but that tap was too small...

Anyone ?

Post Tue Oct 21, 2008 11:16 am

Posts: 2687
Location: Los Angeles, CA
Locate an old gas valve. File or mill slits in the side of the threads and use it as a thread chaser.

Post Wed Oct 22, 2008 2:22 pm

Posts: 184
Location: Naples, Florida
Nicke, if chris's method doesn't work cause threads are really boogered up, the tap you need is a 3/4-18 NS. Mine was a special order.

Post Sun Oct 26, 2008 5:38 am

Posts: 38
Location: Stockholm Sweden
Thanx for the help guys!

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