MAMOD STEAM ENGINE SOLDERING KIT
Mamod Steam Engines: How To Solder Quick Start Instructions:
Soft Soldering of copper to brass.
Attention:
Silver solder is not required when soldering Mamod, engines unless they are specifically described as higher pressure boilers running above 12 psi. Mamod double acting piston engines run at around 32 psi. and are silver soldered.
Silver soldering requires a much higher temperature and if you try that on a soft soldered engine it may well melt other good original joints.