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[pipercub1772]

Hi just getting one of my steam launch ready for sailing cant just remember what the best psi for running the pb2 at ,Think 40 psi if i remember ? thanks for any replies,regards Allan

[SteamboatPhil]

Start with 30 psi to be sure all is as it should be, of course do not over pressure, but you will know....

[rhavrane]

Bonjour Allan,

Personally I operate all my steam machines between 30 - 40 PSI (2 -2,5 Bar) as I save autonomy and keep a wet steam lubricant so I would kindly suggest you to keep 40 PSI as a good idea.

I always test my steam machines, large or small, alone at first on air then on steam and a well settled one starts operating at about 200 g / 5 PSI 

Did you make such a test ?

For fun, a large compound on a breath of air : https://youtu.be/jElze4zpbnQ then on steam : https://youtu.be/UnDiM2Vw6HQ

[pipercub1772]

Thanks for the replies it is in a MHB  Topaz yes i have given it a run at between 30 and 50 psi notist the water guage not going down so descalled the boilerand all seems ok , i cleaned the gas jet not seen one like it before very small thread with a  filter i cant determin the size not like the usual jets anyone with a Topaz may be able to help with that so hoping to get out for a trial run later this week if warm enough ,regards Allan