Re: broke the coolant drain on 400

Posted by Janicholson on February 06, 2006 at 06:22:51 from (199.17.6.175):

In Reply to: broke the coolant drain on 400 posted by Steven D. Esser on February 05, 2006 at 20:25:58:

Easiest would be to tap it for Tapered pipe threads.
3/8 npt would be the size (I think) to deal with the existing hole in the original plug. The biggest if is whether the drilled hole is in the middle of the plug, (or like sometimes happens) it is eccentric.

I think heating will be potentially destructive if heat travels to any soldered seam.

Using a hacksaw to cut into the plug from inside toward threads in two places leaving about 1/8" material between saw cuts (and stopping short of threads ((Careful)), can allow a 1/8" pin punch, which has been ground at a slight angle, to be used to peel the 1/8" piece out of the plug, freeing the remainder to turn.
Best of luck,
JimN

Replies:

• Re: broke the coolant drain on 400 Steven D. Esser 08:05:48 02/06/06 (0)

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