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1 1/2 inch scale Marshall portable engine - stock code 8433

A finely made 1 1/2 inch scale Marshall portable engine, to W.J.Hughes' highly detailed design published in "Model Engineer" magazine. It's one of those engines where the longer you look the more you see - we particularly liked the minute padlock on the front safety valve and finely proportioned, taper-pinned levers in the regulator linkage.

Machining is crisp throughout, fit and finish of the motionwork excellent.

It's rare we see model portable engines - I've always liked the idea that the basic design survived for eighty years virtually unchanged, Robeys here in Lincoln still turning out new ones for export as late as 1950.

Although the engine has evidence of steaming in the past, in deference to its paintwork it's had a twice working pressure hydraulic test in the workshop and been run on air, but we haven't put a fire in it. Some fittings and a cylinder bolt leak - not unusual in an engine unused for a long time - in all other respects it appears in as-new condition.

scale 1 1/2 inch & smaller
length/inches 16
width/inches 8
height/inches 15/24 chimney up/down
valve type slide
valve gear single eccentric
lubricator type displacement
boiler number 1277
CE mark n/a - non-commercial
working pressure/psi 80
boiler type locomotive
boiler material copper
boiler construction silver soldered
hydraulic test valid to 24-Feb-2023
safety valve(s) 2
safety valve type Salter + spring
mechanical pump 1
whistle yes