What’s wrong with #193 in my CP500 ?

csturla · 30. August 2009

I’m getting crazy with this problem…

I can use my CP500 with the rapid preheater but as I try to switch it off leaving the pressure, it works 2 or 3 times and, after that, petrol starts coming out from the nipple event if I close the wheel.

Anytime I had the problem, I uncounted the carburetor group and found that the plastic ring washer fitting into the valve washer #193 was partially out of its place. I put it inside (or even change entire #193 and the associated spring and #90)) I mounted it back and the lamp worked correctly back 2 or 3 times and I have the same problem again and again….

What’s wrong? Why closing the wheel when the lamp is hot generate move thering washer out of its place???

Of course I can still light the lamp with alcohol but I really would like understanding…

BTW: I use kerosene (“Petrole” in French)

Any idea?

Thanks,
Carlo

Frei's Petrollampen (✝) · 30. August 2009

Hello Carlo

The problem with the spare part........, PX193 is well-known.

There there is a good solution: http://www.prela.ch/Fundgrueb/vergaserfussventilgross01.jpg

These valves are made of Viton compound and close without problems!

If you further questions have write me please a E-Mail.

With respectful greeting, Ernst

csturla · 30. August 2009

Thankis Ernst, I just sent you a mail

Frei's Petrollampen (✝) · 30. August 2009

Hello Carlo

You have also a E-Mail!

With respectful greeting, Ernst

csturla · 12. September 2009

Hello, just for general information, I ifnally used the valve and punp washer from http://www.prela.ch/shop/ and all problems are over

I really suggest these two spares:
http://www.prela.ch/Fundgrueb/Spreiz02gross.jpg
and
http://www.prela.ch/Fundgrueb/vergaserfussventilgross01.jpg

they are a great solution for most commun problems with petromax lanterns!

Thanks,
Carlo