Fuel taps.

[duTch]

 I think the ones on my RR screwed in, ie; the 'shaft with a head' that goes through the cork, screws into the knurled plunger bit with the notch for the grub screw...??

[diggerjones]

The brass plunger is punched out of the knurled part using a suitable pin punch. You can then push a new cork onto the brass plunger, push it back into the knurled part, and re rivet using a small ball pein hammer. This can usually be done 3 or 4 times until the brass piece gets too short to re rivet effectively.

Hope this helps

Arthur

Thanks. That makes sense.
 And thanks for everybody's input.

[trevinoz]

Some of them have threaded plungers which makes life a little bit easier.
I make new threaded plungers for the rivetted type and tap the knob to suit.

[diggerjones]

Not put my taps back yet. But was wondering why I get fuel in the engine, the fuel has to run through float chamber, shouldn't the fuel be stopped when float chamber is full???

[trevinoz]

Depends on how good your needle and seat are.

[morris]

Not put my taps back yet. But was wondering why I get fuel in the engine, the fuel has to run through float chamber, shouldn't the fuel be stopped when float chamber is full???

Lots of things can go wrong there. The float can be punctured thus not holding up the needle in the seat. The needle seat can be oxidized or dirty or the needle worn.
Does your carb's float chamber have a Stay up float and a Viton tipped needle? They are much more effective than the old type float and flimsy plastic needle

[diggerjones]

Thanks for the replies,  so we are saying when new this would not happen.