According to my TR4 Workshop manual it is a 16mm x 2mm pitch thread. Size
the drill accordingly, 14mm I think is the right one for a 16mm tap. I have
one of those taps around somewhere that I'll use for a back up light switch
when I overhaul the transmission over the winter.
JVV
----- Original Message -----
From: "Dave Massey" <105671.471@compuserve.com>
To: <Tr3bob@aol.com>
Cc: <triumphs@autox.team.net>
Sent: Monday, October 27, 2003 5:39 PM
Subject: early OD...again
> Drill and tap the new one. I did that when I converted my transmission.
> trying to reweld something that was precision machined will be near
> impossible.
>
> Hint: the switches have a metric thread.
>
> Dave
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