Oil Plug Drain McD #7

[Tyler Sage]

Wondering if anyone knows the size of the square hole in the oil plug drain on a McCormick Deering #7. Any quick tips to getting it out? Anything quicker than buying square stock and grinding it until it fits the hole would be a help……

• This topic was modified 7 years, 4 months ago by Tyler Sage.

[Rivendell Farm]

You might see if a three eighths or half inch drive socket handle will fit. Bob

[JaredWoodcock]

I am not familiar with the plug you are talking about but for non standard squares that are bigger than 1/2 inch, I have had some success by taking my 1/2 inch breaker bar and shimming two sides of it to fit with flat stock steel.

[Donn Hewes]

Yes, the socket wrench fits fine. I am pretty sure that is 1/2″ drive. Gobs of paint would be about the only thing that could mess that up.

[Jay]

I have found that sometimes the bottom gets bunged up by running over stones, etc. I have found a 3/8 socket fits. A Dremmel will grind out the corners if needed.

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