Hi Björn,
My Petromax is nowadays still functioning very well, in fact it operates like a Buick, you now the famous American car that is allways going strong!
But I have looked at those double hole Petromax mantles and the two hole mantle holder.
Please, advice me, are these twin hole mantles much better than the standard ones? Is it only a question of durability or will this two hole mantle also give an even brighter light?
Best regards,
Kenneth from Finland
Hi Björn,
I compared the Petromax light luminosity with the original ceramic nozzle and the new stainless nozzle using an old DDR Weimar-Lux meter (belichtungsmesser) and a Gossen Sixtomat meter. I also adjusted the air-screw in the mixing tube in both cases for best luminance.
According to these meters the light output from the two different nozzles where exactly the same, as you already told!
So, I reverted to the ceramic nozzle. This, because I have understood that it will cause minor troubles.
Best Regards,
Kenneth M.
Thank you Björn very much for your advices!
I think I will not any more use the glass with the heater. I used it only because the engine looks better with the glass!
Tomorrow I shall adjust the needle to 0,5mm or below.
Concerning the stainless nozzle, I bought it only because Pelam states on this site that it will increase the lantern light with about 10 - 20%. Perhaps it would be better to return to the ceramic nozzle?
Best Regards,
Kenneth
Hi Björn,
Now the heater is functioning!
I removed the glass and side reflector but used still a mantle inside the radiator and now I got only a very tiny burning in the hood. Then I lifted the mixing tube a little over the "500CP" position mark using the supplied gauge. Now the burning in the hood wanished competelly and the heater is functioning very well!
When the valve is closed the needle is coming out of the generator nozzle about 1,5-2,0mm. Do you think that I should still lower the needle by adjusting the length of the generator rod? Perhaps I then could use even the glass with the radiator?
Best regards and thank you for your help,
Kenneth
Ps. I forgot to tell, that I am using a stainless steel nozzle. I have read elsewhere in this forum that this also can make some problems!
I will soon try to use it without glass but with mantle inside the radiator. Oh, I forgot to tell, that I have also used the side reflector. Perhaps it would be best te also remove this reflector?
BR. Kentsu
Hello Björn,
Yes, I have used the heater with glass and a new unbroken mantle inside the radiator. From the "Tips and Information" section I understood that this shuold be possible (http://www.pelam.de/articles.php?tPath=22_38)?
But, this allways result in strong burning in the hood and the mixing tube glowing red. I also had to renew the mixing tube because the little air-screw fitted to the tube melted!
Best Regards, Kenneth
Hello Björn
I dont think that the burning in the hood-area is due to loosen jet. I have secured these.
The problem is that when I use the Radiator around the mantle, then I get a very strong burning in the hood and after a while, the mixing tube will be glowing very red!
BR.
Kenneth, Finland
Hi,
I have two Petromax HK500 (829 with rapid burner) lamps. I have tried to install to these the Radiator part "PR-5-P" with the protection plate "126-chrom".
But the problem is, that when I ignition the lamps with these radiators I allways get a verý strong upper burning in the hood!
Could you please inform me where is the problem? My Petromax lamps burns very nicely if I not use these heating radiators!
Thanks for the advice. But what kind of oil should be enough fat for the pump leather, perhaps engine oil SAE 40-50?
I shall also try to loose the washer a little bit and then it perhaps will expand the leather sleeve.
BR. Kenneth M.
Hi
I got as a christmas present a very fine Petromax HK500 powerlamp and it is now working fine when I finally realized the quite complicated startup procedure and that it must be preheated very long before ignition!
But, I still have some problem with the pressure pump. The pump has an leather sleeve which I have oiled with a tiny sewing machine oil. But when I am pumping pressure in the ignition phase the pump very often fails and hits empty.
Could you please tell me if I can get a better functioning pump if I replace the leather sleeve with the O-ring attachement? Is this possible and where I can order such a sparepart? My Petromax was bought from Kaasuvalo in Helsinki but they dont have separate spareparts, only the set of Sealing Devices, but this set does not include O-ring attachement for the pump.
BR. Kenneth Magnusson, Helsinki
