How do I remove this screw?

Busy putting my proportioning valve apart for a good cleaning and install a new kit. Not a luxury after 50 years

While one side went out with no problem, the other is something else.
There is a screw, it doesn't feel like there is any thread there, so while it turns, it doesn't get out.
So question is: how do I remove this "screw"? tried air, but it goes out via other holes or do I need close one to generate pressure?

From the kit I see 2 small o-rings, as they do not fit the other side, they must be around beneath it

Any tips welcome!

There are instructions here

Don C said:

There are instructions here

Click to expand...

https://www.musclecarresearch.com/valve-rebuild-kh

The link didnt work for me so I hope this fixed it.

@Don C thx Don. I doesn't really tell how. but its clear I need pull it out somehow.

I need buy thinner and longer needle-nose pliers than I have.. may be why it's still in there as I've tried...

Or, like you said, plug the holes and blow it out, please point it away from you , so it doesn't bounce back off a wall  :whistling:

Don C said:

plug the holes and blow it out

Click to expand...

Well, I tried at first and it did't work. And went to plan B instead right away



I've modified with a file the thickness of one of my pliers, so it could go around the screw (which turns not to be one) while being into the bore.
Took a while to have the right grip to be able to rotate and pull at same time.

But eventually got it!



All back together in matter of minutes after that baby was out.
ready for another 50 years of service