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Maxitrak Aveling steam tractor - stock code 5045

We first bought this engine in 2007, it had been built from a kit in 2002. Last sold in 2011, it's recently arrived back in part exchange for a 7 1/4 inch gauge locomotive.

Still steams and runs well, however safety valves accumulate and there is a slow drip from the rear of the foundation ring when cold. Pictures opposite and words below are from the last time it was here, there's a clip of it running in our yard yesterday here.

I've had this engine in a couple of times now - this time it's come back in part exchange from a man responsible for the rather good 3 1/2 inch gauge Britannia I've got in at the moment. Something of an Inspector Meticulous, he done a variety of small jobs, including retouching the paintwork and adding a mechanical pump - the engine is in fine order cosmetically and mechanically, it would make an ideal beginner's engine for the coming season.

We don't get many of these Aveling tractors in - they go very well and their owners, obviously a satisfied group of individuals, rarely seem to sell them.

Built from a fully-machined kit supplied by Maxitrak in 2002, this engine is in fine fettle, pretty much the ideal beginner's rally outfit with a well thought out driving/passenger trolley containing a stainless steel water tank, coal box and set of batteries for powering the electric steam-raising blower.

Overall dimensions are similar to a 6nhp Burrell in the same scale. It has a copper silver-soldered boiler fed by mechanical pump and injector, working pressure 90psi. Single cylinder with slide valve actuated by Stephenson's valve gear with pole reverser on footplate. Mechanical lubricator and rod-operated drain cocks.

One of the freeest-steaming traction engines I've driven and without doubt the fastest - it has a very long high gear which, once under way, gives very leggy performance on the road. Combined with the rubber-tyred wheels it gives a quick, quiet ride - you can see Ashley terrorising the estate in the clip here.

scale 3 inch
length/inches 42 + 57
height/inches 30
weight/kg est 120
cylinder material cast iron
valve type slide
valve gear Stephensons
lubricator type mechanical
boiler material copper
boiler construction silver soldered
safety valve(s) 2
safety valve type spring