Shortly after being withdrawn from service for overhaul, 60007 at Grosmont with both the cods mouth doors and the smoke box door open whilst being disposed from the final weekend running. The blast pipe is covered up to prevent rain getting in now the locomotive out of traffic
Photograph: Nigel Rayner.

Front view of Sir Nigel Gresley in the workshop at the National Railway Museum, York, viewed from the public viewing gallery on 23 November 2015.
Photograph: David Stapleton.

Front view of Sir Nigel Gresley in the workshop at the National Railway Museum, York, viewed from the public viewing gallery on 23 November 2015.
Photograph: David Stapleton.

The Engineering Team removing the superheater elements.
Photograph: Darrin Crone.

The superheater header inside the smokebox with the superheater elements.
Photograph: Darrin Crone.

The first sections of streamline casing removed, looking from the front of the loco.
Photograph: Darrin Crone.

The removed cab resting behind the loco.
Photograph: Richard Swales.

All the streamline boiler casing removed.
Photograph: Richard Swales.

A view showing the crinoline framework still attached to the loco, 26th January 2016. Crinoline framework.
Photograph: Darrin Crone.

Mike Page die-nutting the boiler bands. This repairs the thread on the end of the band allowing the fastening nut to be replaced, 26th January 2016.
Photograph: Darrin Crone.

The reverser stand removed from the loco. It is normally positioned in front of the driver and allows adjustment of the engine valve travel for efficient working, 27th January 2016.
Photograph: Darrin Crone.

Andy Barwick releasing the crinoline in preparation for removal, 28th January 2016.
Photograph: Darrin Crone.

The first section of crinoline is removed, 28th January 2016.
Photograph: Darrin Crone.

The insulation removal team ready for action on 2 February 2016.
Photograph: Darrin Crone.

The insulation removal team after the action. L to R: John Furness, Mike Page, Darrin Crone, Peter Brackstone, Andy Barwick, 2 February 2016.
Photograph: Darrin Crone.

Work proceeding at the firebox end.
Photograph: Robin Patrick.

Work in progress at the smokebox end and on the left side of the boiler.
Photograph: Robin Patrick.

Dave Lee and the first flue tube partially removed, 3 February 2016.
Photograph: Darrin Crone.

The top row of flue tubes removed, 5 February 2016.
Photograph: Darrin Crone.

In the foreground is Flying Scotsman, while Mike Page and Malcolm Bateman supervise the removal of one of the flue tubes on 12 February 2016.
Photograph: Darrin Crone.

Andy Barwick steers a flue tube away from Flying Scotsman during tube removal on 12 February 2016.
Photograph: Darrin Crone.

The front tubeplate, 13 February 2016. Top three rows of flue tubes with surrounding small smoke tubes removed.
Photograph: Darrin Crone.

Right hand cylinder cladding removed on 20 February 2016.
Photograph: Darrin Crone.

A view looking forward in the boiler toward Flying Scotsman, 20 February 2016.
Photograph: Darrin Crone.

Bob Shearman drives forward the last of the flue tubes while Darrin Crone holds the drift on 23 February 2016.
Photograph: Darrin Crone.

All flue tubes now removed and stored outside ready for disposal, except one kept for inspection by the boiler insurance inspector.
Photograph: Darrin Crone.

David Riley and Peter Brackstone removed the streamlining behind the left hand buffer on 24 February 2016.
Photograph: Darrin Crone.

Sand emptied from 2 out of the 4 sandboxes, in the pit under the loco on 25 February 2016.
Photograph: Mike Page.

The regulator valve body emerges from its 10 years in the boiler on 27 February 2016.
Photograph: Richard de Sadeleer.

Dave Lee was the first inside the boiler to cut out the small tubes.
Photograph: Malcolm Bateman.

The removed loco brake gear.
Photograph: Malcolm Bateman.

Bob Shearman inside the boiler cutting the small tubes at the smokebox tubeplate. Bob assisted in the removal of the bottom rows of tubes.
Photograph: Malcolm Bateman.

Peter Brackstone with one of the brake hangers prior to removal.
Photograph: Malcolm Bateman.

Inside the boiler with all the bottom small tubes removed.
Photograph: Darrin Crone.

Right hand valve gear removal. The inside cover of the expansion link still in position.
Photograph: Darrin Crone.

The smokebox tubelate free of all tubes.
Photograph: Darrin Crone.

General view of 60007 in the workshop.
Photograph: Darrin Crone.

The right hand valve gear an connecting rods removed.
Photograph: Darrin Crone.

Removed valve gear components on the cleaning bench.
Photograph: Darrin Crone.

All the streamlined casing has been removed.
Photograph: Darrin Crone.

Part of the drain cock mechanism. A view inside the frames looking over the top of the RH trailing bogie wheel axlebox. The pulley is moved by operating a lever on the fireman's side of the cab connected by a steel cable. The pulley shaft operates a lever and rod to the centre cylinder cocks and is linked to another shaft that operates the outside cylinder cocks.
Photograph: Darrin Crone.

The empty firebox tube plate from inside the firebox (1).
Photograph: Darrin Crone.

The empty firebox tube plate from inside the firebox (2).
Photograph: Darrin Crone.

The empty firebox tube plate from inside the firebox (3).
Photograph: Darrin Crone.

The smokebox saddle with concrete removed.
Photograph: Darrin Crone.

The boiler is lifted clear of the frames at the National Railway Museums North Yard.
Photograph: Trevor Camp/SNGLT.

The boiler being placed away from the rail to allow the frames to be shunted clear and the boiler wagon to be put in position.
Photograph: Trevor Camp/SNGLT.

The boiler being manoevered away from the chassis.
Photograph: Trevor Camp/SNGLT.

The boiler being lowered on to the wagon.
Photograph: Trevor Camp/SNGLT.

The boiler safely positioned on the wagon.
Photograph: Trevor Camp/SNGLT.

The ashpan being lifted, supervised by Tom Emsley.
Photograph: Trevor Camp/SNGLT.

A view of the frames looking forward with 92220 Evening Star beyond, 1 April 2016.
Photograph: Darrin Crone.

Bob Shearman cleaning between the frames on 1 April 2016. The white paint applied 10 years shows through.
Photograph: Darrin Crone.

Bob Shearman working his way down cleaning between the frames on 1 April 2016.
Photograph: Darrin Crone.

A view of the frames looking toward the rear, 1 April 2016.
Photograph: Darrin Crone.

Will Morgan cleaning between the frames around the hornstays on 1 April 2016.
Photograph: Darrin Crone.

George Colclough, Mike Page and Andy Barwick moving superheater elements stored next to the wheeldrop into the yard for collection by the scrap man.
Photograph: Darrin Crone.

A start has been made in the removal of the air brake system piping. The photograph shows joints disconnected looking forward from under the Cartazzi.
Photograph: Darrin Crone.

The driving springs in the pit beneath the loco. The pit floor is covered in sand to soak up all the oil and grease dropped during the cleaning of the frames.
Photograph: Darrin Crone.

The right hand trailing axlebox showing how clean the volunteers have got the frames just using elbow grease. The view shows the horizontal hornstay bolt nuts de-pinned. The lubrication pipe was drained last week and is on just finger tight. The axle dust shield screws are also now finger tight.
Photograph: Darrin Crone.

Peter Brackstone dismantling the air pump exhaust where it passes over the sandbox and enters the silencer box.
Photograph: Darrin Crone.

The removed air pump steadied by Peter Brackstone.
Photograph: Darrin Crone.

A view between the frames showing how little piping remains to be removed. The clutch vacuum pipe (601) and lubrication pipes are all that remains on the left side frame.
Photograph: Darrin Crone.

The engineering team, Bob Shearman, Peter Brackstone, Alan Pitt, Darrin Crone and Mike Page with "Gresley Bear".
Photograph: Darrin Crone.

Dave Lee removing the front brake cylinders seen from over the frame stretcher that supports the front bogie.

Before blasting the RHS outer firebox plate.
Photograph: Darrin Crone.

After blasting the RHS outer firebox plate.
Photograph: Darrin Crone.

Jono Taylor guiding the cab as it just lifts off the ground during refitting.
Photograph: Darrin Crone.

Jon Gray and Tom Crone fastening the cab down on to the frames while supported by the crane.
Photograph: Darrin Crone.

The outside of the boiler blasted and primed on 25th April 2016.
Photograph: Darrin Crone.

Mike page in the frames removing the lubrication pipe to the trailing left hand axlebox, 28th April 2016.
Photograph: Darrin Crone.

Boiler shortly before sheeting over on 5th May 2016.
Photograph: Malc Bateman.

The assembled racking in the GUV on 5th May 2016.
Photograph: Malc Bateman.

Bob Shearman and Alan Pitt making the last racking shelf on 10th May 2016.
Photograph: Darrin Crone.

A general view inside the GUV before moving our parts in, 10th May 2016.
Photograph: Darrin Crone.

Bob Shearman the GUV project leader opens the Storage Facility, 10th May 2016.
Photograph: Darrin Crone.

A view of the loco in the workshop from the GUV on 11th May 2016.

Photograph: Darrin Crone.

The main steam pipe at the top of the boiler with the regulator clamp removed, 13th May 2016.

Photograph: Darrin Crone.Photograph: Malc Bateman.

Steve Bradley cleaning the lubrication system parts he removed on his first day as a volunteer with the Engineering Team.
Photograph: Darrin Crone.

Malcolm Hutton after spending three days cleaning the inner firebox plates so that they can receive a detailed inspection.
Photograph: Darrin Crone.

The inner firebox gleaming after cleaning.
Photograph: Darrin Crone.

The bogie is lowered and held for inspection, by NRM's Danny Holmes and SNG Engineering Team's Andy Barwick and Darrin Crone.
Photograph: Malcolm Bateman.

Sir Nigel Gresley overhanging the wheeldrop with the bogie removed.
Photograph: Darrin Crone.

The bogie at the bottom of the wheeldrop slung ready to be lifted by Richard Swales, Andy Barwick and Peter Brackstone.
Photograph: Trevor Camp/SNGLT.

The loco front resets on the NRM accomodation bogie.
Photograph: Richard Swales.

The leading coupled wheelset lowered.
Photograph: Trevor Camp/SNGLT.

The bogie and leading coupled wheelset successfully removed.
Photograph: Trevor Camp/SNGLT.

The driving wheelset being lowered on to the rail after removal.
Photograph: Trevor Camp/SNGLT.

The trailing and last coupled wheelset to be removed at the bottom of the wheeldrop pit.
Photograph: Darrin Crone.

All removed safely, and showing the considerable amount of space they now take up in the workshop.
Photograph: Darrin Crone.

Loco with coupled wheelsets and bogie removed.
Photograph: Malcolm Bateman.

The loco back in position with the driving wheelset moved to the wheeldrop to allow the other wheelsets to be positioned under the crane for the axleboxes to be lifted off.
Photograph: Richard Swales.

The leading left suspension components. The cylinder below the spring contains rubber discs that under years of compression had stuck tight to the hanger bolt that passes through it. One (to the right in the photo) has been removed and the coil spring with it.
Photograph: Darrin Crone.

The bogie frame on the wheeldrop with bogie wheelsets rolled out either end.
Photograph: Darrin Crone.

Malcolm Hutton and Bob Shearman pondering on how to get those rubber springs off.
Photograph: Darrin Crone.

The bogie axleboxes.
Photograph: Darrin Crone.

The Engineering Team Volunteers at the cleaning bench.
Photograph: Darrin Crone.

An example of the historical markings on the wheelsets revealed after removing the paint.
Photograph: Darrin Crone.

Malcolm Bateman and Malcolm Hutton removing paint from the leading coupled wheelset.
Photograph: Darrin Crone.

Looking from the rear of the bogie showing one of the bogie side control springs in the centre. Bob Shearman is removing components to enable the side control springs to be removed. The bogie pivot hole in the top can clearly be seen.
Photograph: Darrin Crone.

The tender was shunted this week and was left next to our bogie frames and wheelsets.
Photograph: Darrin Crone.

The bogie side control centre pivot block during removal.
Photograph: Darrin Crone.

The NDT contractors during their examination of the boiler in the North Yard of the NRM.
Photograph: Darrin Crone.

The cylinder relief valve has been removed from the hole at the bottom of the outside right hand cylinder cover.
Photograph: Darrin Crone.

The cylinder relief valve still in place on the rear of the outside right hand cylinder.
Photograph: Darrin Crone.

Some of the historical stamping on the inside big end crank webs. The crank pin is protected with tape which has now been removed so that the pin can be examined.
Photograph: Darrin Crone.

A general view of the remaining gravity sands mechanism showing the pivot bracket fastened to the back of the saddle casting and the top of the middle steam chest beneath.
Photograph: Darrin Crone.

George Colclough removing the gravity sands bowden cable quadrant.
Photograph: Darrin Crone.

The left hand cylinder cover nuts being removed by Malcolm Bateman.
Photograph: Darrin Crone.

The bogie frames require thorough cleaning then all the paint removing for the frame material to be examined in detail. Alan Pitt is assisted by Philip Wilson.
Photograph: Darrin Crone.

Bob Shearman removing the paint from the bogie axlebox suspension beams.
Photograph: Darrin Crone.

The leading and trailing coupled wheelsets after testing by contractors.
Photograph: Darrin Crone.