111 pump problem

Hi fellow stovies.

I have just acquired an old kero 111. It has a white plastic adjustment knob and I expect it is a fairly old one - it has "Optimus 111" stamped into the lid - but has no dents. After a bit of a clean up I am sure it will be fine.

I replace the hard cap washer and noticed the pump leather was pretty dry and hard. After a few pumps, it seemed to pressure the thing up slighty but leaked kero from around the pump handle - it really sqirted out. Is this due to a tired pump washer or is this a blocked non-return valve?

If it is the valve, how can I sort it without pulling the thing to bits? I tried squirting some CRC down the pump tube but this didn't help.

Any help most appreciated.

 

can be removed with the multi tool that comes with 111T and 111C. Or, you can fashion a T-wrench with a clot milled away at one end of a metal tube. Eyeball the thickness of the flat sides, and put a slot accordingly. Some other stovies on this site might be able to supply you with the correct demensions.

The NRV is exactly the same as other NRVs found in other brass stoves. There is a small rubber plug that is under a spring tension. Chances are it is hardened. That needs to be replaced. The material you need is thick nitrile rubber (about 5mm). Punch out a few samples, and fit the best-looking one in the NRV, and you are in business.

bark2much

 

Thanks, I have a 111C so I will try that tool.

 

You were right bark2much! Many thanks. The rubber bit had shrivelled up. I cut up a seal to fit from a bit of new fuel hose and it pressures up nicely. The thing goes like a charm now. Now to clean it up a bit to its former glory.

 

If that adjustment wrench is the black one a Allen wench 10 mm well fit makes it easer to got more torque to turn it

 

Oops would you send me a picture of that avaitor your using seems to me ive seen one of those about but as of late i can't remember where because i can't id the unit.

lance

 

Don't forget to show the world the beauty of your fettlerhood (is that a word?) by listing the pictures of the stove here.

bark2much

 

before the rubber-caps they used cork. I does not shrivel, it just keeps on working.

 

It's a Rippingilles oven with two wickie burners. Next fall, Robert's going to cook his Thanksgiving turkey in it with all the trimmings...