Rounded off drain plug

[kenlip]

My guess is that most tractor owners in the US change oil when it's hot and the hotter the better.

What shape plugs do most tractors have - tapered or straight?

 

[countrybumpkin]

Most modern tractors are straight thread with o ring or washers of some sort to seal. Some still have a few tapered plugs here and there. Most gear boxes still use taper threads, and as you said , just need to know how tight is tight when servicing them, no need to have them gorilla tight. I usually drain my oils when the unit has set a while and oil has drained down and settled, just my preference.

 

[stuckmotor]

I drain mine when it's cold. My tractor is a '97 model.

 

[radios1]

this is the only thing that should be used on a square drive drain plug. Cheap 1/4", 3/8", and 1/2" Square Box Wrenches using vise grips, pliers, or pipe wrenches, or even open ended wrenches will eventually round off the square nut..

 

[countrybumpkin]

They also have socket sets for square plugs.

 

[sixdogs]

They also have socket sets for square plugs.

What brand are they or where did you get them?

 

[countrybumpkin]

Here is a set, of 3/8 drive.

Grey Pneumatic 1211P 11-Piece 3-8 in. Drive Pipe Plug Standard Socket Set

 

[countrybumpkin]

I also have several 8 point sockets for square plugs too. Most tool brands have them.

 

[radios1]

I also have several 8 point sockets for square plugs too. Most tool brands have them.

I would not recommend 8 point sockets for square plugs, as they would have less contact points, and could strip the plug if a lot of pressure is needed to remove it.. Thanks for the link to the four point sockets though, they are very difficult to find at a decent price!..

 

[stuckmotor]

I've learned something today. If I ever ran across a square drive plug, I think a 3/8, 1/2, or 3/4 inch drive extension fit and I hoped they were all like that.