250 ET Decompressor valve working?

[rvdave@live.com]

I recently picked up an 80 250 ET, notice the decompressor wasnt working pulled cover and the center pin goes in and out with the piston stroke. I would think it should be either in or out. Help please, any insight is apreciated

 

[Maim]

never really needed the decompressor on the 79 my dad had. he welded a plug into the end of it after it blew apart and toasted a brand new piston just after it was broken in.

 

[rvdave@live.com]

I believe I will plug it. simpler the better, thanks