There is a thread from a few yrs back, where some one used a metal tire valve stem.

removed the upper radator hose, fished a wire from the broken nipple to the rad hose connection. then connected the wire onto the valve stem and pulled it across and into the hole. then screw on the nut and washer.
slip on the expansion tank hose and upper hose and all done.

I haven`t done this, but sounds doable.

or replace the radiator.

Charlie

__________________
there were three HP ratings on the OM616...

1) Not much power
2) Even less power
3) Not nearly enough power!! 240D w/auto

Anyone that thinks a 240D is slow drives too fast.

80 240D Naturally Exasperated, 4-Spd 388k DD 150mph spedo 3:58 Diff

We are advised to NOT judge ALL Muslims by the actions of a few lunatics, but we are encouraged to judge ALL gun owners by the actions of a few lunatics. Funny how that works