Custom made socket for radiator coolant drain plug

[TedC]

Twice this year I needed to drain the engine coolant. First time was reducing coolant level so I could replace intake manifold gaskets and then soon after for a coolant flush. The FSM makes no mention of the right tool to use. Most of us use pliers, usually with a tilted head. You run the risk of snapping the plug and it is very difficult to know if you applied too much or not enough torque. Here is my solution. Cut two slots into a spare 1/2" socket (1/4" drive) using a dremel. The slot is just wide enough to fit onto the drain plug slot. My drain plug needed to be tightened another 90 degrees vs. the results using a pliers.

 

[John Robinson]

I am getting ready to change the bottom hose on my 93. I am sitting here with a spare 1/2" 1/4" drive socket and am wondering how wide you made the slots.

 

[TedC]

John,
Just a hair wider than 1/8". So the drain plug slot must be 1/8" thick. Ground slot using a thin grinding wheel using trial and error until the socket fit perfectly with no play.

 

[John Robinson]

John,
Just a hair wider than 1/8". So the drain plug slot must be 1/8" thick. Ground slot using a thin grinding wheel using trial and error until the socket fit perfectly with no play.

Now I know were to start Thanks

 

[LT4man]

How cool.

I betcha this would also fit my 93 Grand Prix. That gosh darn plug is a son of a gun to get to!

Many thanks!

After draining my coolant, I will be sure to SAVE the WAVE!

 

[LLC5]

Twice this year I needed to drain the engine coolant. First time was reducing coolant level so I could replace intake manifold gaskets and then soon after for a coolant flush. The FSM makes no mention of the right tool to use. Most of us use pliers, usually with a tilted head. You run the risk of snapping the plug and it is very difficult to know if you applied too much or not enough torque. Here is my solution. Cut two slots into a spare 1/2" socket (1/4" drive) using a dremel. The slot is just wide enough to fit onto the drain plug slot. My drain plug needed to be tightened another 90 degrees vs. the results using a pliers.


View attachment 4484

Good idea. I guess there is a use for craftsman sockets.

 

[John Robinson]

I used a 1/8 drill as a gauge. Now I am ready to go to work. But not today heat index 110. I may be silly at times but I am not stupid. I think

 

[Dad]

I may be silly at times but I am not stupid. I think

If you're not sure just ask, someone will fill you in. :L