3/8 NPT I think. Some hardware stores (McLendon's) carry plugs for that
thread.
Gunter
-----Original Message-----
From: Simon Whitworth
Sent: Saturday, June 18, 2011 9:25 AM
To: Miatapower Miata Power
Subject: Thread for the FM turbo oil pan return
I'm planning on de-turboing my 97 FM-II and need to plug the hole in
the oil pan. Anyone know what that tread size is and have any
suggestions on a suitable plug ?
Thanks,
Simon.
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