This 930 350cp is making me crazy! Ran well a couple of times so Eve I made adjustments as below: 1. J-tube overheated 2. Replaced J-tube with...
Thank you Nils! It is older than I thought!
Found this Optimus 200 recently. Pretty good condition. Between a collector friend and myself we have determined it to be around 1950’s? It has...
Hi all. I have tightened the jet, it had a small amount of play to fully tight. I also adjusted the air gap between J-tube and jet to 14mm, as...
Thank you! Let me give it a try. On a Optimus 930 with similar problems I replaced the J-tube with a new one and the problem was gone. These...
I have an earlier Petromax 821 in great condition. When I light it, it starts off brilliantly white on a Peerless mantle. It does get hotter over...
Thank you all, appreciate the info! The valve wheel is a metal one.
URP is what I assumed the correct abbreviation is of "Unleaded Regular Petrol", thank you for the confirmation. I have successfully started the...
I found this Primus No 890 soldering iron at an auction. Cannot find any information on it like date of manufacture. It has the Primus stamped...
I found this great looking PM 821 at an auction. Should clean up well. Only missing a jet and new needle. The collar/frame rest holes are...
So I took the advice of replacing the J-tube on this problematic 350cp Optimus 930. As you can see from the pictures, the replacement supplied by...
OK, so a gap of 15mm makes no difference. Back to square 1.
I measured the gap between jet and airtube intake at 13.5mm. I changed this to 11.5mm. The J-tube got red hot even quicker. Next attempt is to...
Tried running it without the ventilator on, no issues! J-tube does not get red hot. I suspect that these lanterns are made to run very hot,...
Bunch of clever people on this Forum! Grateful for the advice. I'll give it a go and report back.
Can you please confirm your gap between the jet and airtube on your lantern?
It does not over flame at all (makes no flames outside of mantle). The mantle just gradually glows less bright. I have cleaned the fount and the...
Thank you. Now to find a J-tube!
My Optimus 930 350cp model is in overall great condition. I have taken it apart and cleaned. Vaporiser has been de-carbonised with a mixture of...
Recently acquired this Petromax model 821 (250cp). Was used as decor at the coast so the nickel is pretty much pitted. Internals are pretty good...
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