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Update - 28th July 2012

posted 28 Jul 2012, 14:47 by Derek Pattenson   [ updated 28 Jul 2012, 14:54 ]
Lots has happened this month, even though at first glance it might not look that way.
First, the great news is that a replacement clutch has been successfully sourced and is now safely held by the Swanage Railway. It has not been used since it was completely refurbished some years ago and should last a very long time to come. There remain elements of the drive train that are missing, but the hope is these should be relatively easily replaced compared to the complex clutch mechanism.

Next, work has started on dismantling the six-cylinder Maclaren diesel engine.
Engine compartment showing radiator fan

Ancillary components such as compressor and fuel injector have been removed for off-site restoration, whilst on the loco inlet and exhaust manifolds are removed, cylinder heads and valve mechanisms being disassembled etc. It's starting to look like a big meccano kit and fingers crossed we'll remember how it all goes back together! It's apparent that quite a few "minor" components will need replacing - all the wiring, piping, gaskets and various other bits and pieces. In the meantime the engine block is covered in a big "plastic bag" to keep rust, paint, bugs and weather out of the engine.


Externally, a fresh supply of paint has allowed the lower 2/3rds of the cab rear to go into primer. (Accessing the upper third is tricky whilst May is marshalled next to crane, as there's insufficient space to get the ladder up high enough...)  The remaining stubborn bolt has been "dealt with" on the bonnet casing, and all 32 machine screws at the lower bonnet edge have been drilled out, as have the screws holding the bonnet "nose" in place. These components are now just resting in place pending removal for repair / replacement, and also potentially to allow much better access to the engine compartment. The Fowler design does not lend itself to rapid disassembly; the bonnet is in three sections, but these are held together by the handrail. The handrail can't be unbolted whilst the fuel tank is in place. The fuel tank can't be removed whilst the bonnet is in place. The screws to undo the bonnet can't be undone whilst the chimney is in place, but the water-filled exhaust can't be removed whilst the bonnet is in place (too close to turn the last nut!). You can't take off the rear brake hangers whilst the sandpipe is in position, and you can't unbolt the supports for the air brake control rod with the bonnet in place. Goodness knows how they assembled it all in the first place! 
Air receiver cylinders between frames

Further work parties in August should see stripping of paint on the cab front and potentially putting the entire left-hand chassis (frames, brake gear, underside of footplate, rear of buffer beams etc) into the next stage of painting, grey undercoat. 
Special thanks again go to Fraser for allowing us access to power and tools, and for the kind donation of spanners, pliers, screwdrivers and a tool box that were surplus to the crane department's requirements. 
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Derek Pattenson,
28 Jul 2012, 14:47
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Derek Pattenson,
28 Jul 2012, 14:47
ą
Derek Pattenson,
28 Jul 2012, 14:47
ą
Derek Pattenson,
28 Jul 2012, 14:47
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