16 SVT Society

16 SVT Society 40118 is based at The Battlefield Railway in Shackerstone. Built by RSH in Darlington and being restored to her former glory by members of the 16 SVT Society.

The Yorkshire team had another few hours on grill box number 6. The work is just a repetition of the previous grill boxe...
23/07/2026

The Yorkshire team had another few hours on grill box number 6. The work is just a repetition of the previous grill boxes, so not really worth photographing. However, we did have to spend some time ( same as all the others) to modify the top slat. This is a half slat, so a full width slat has to be cut lengthways. The slat is marked up using an Odd Legged Calliper. This was pre set when we did the first slat, and has remained so, so all the top slats are the same. Those of you with eagle eyes will note that we have set the Calliper backwards. This is so that we could prevent it from moving during use. The scribe pin prevents the calliper from closing up during scribing. The photos show the marking up, and after cutting alongside the straight edge during the truing up. An extract of the drawing is included so you can see where the slat goes.

Class 40's were built with vacuum brakes only, and were retrofitted with air brakes later in their life. To do this lots...
18/07/2026

Class 40's were built with vacuum brakes only, and were retrofitted with air brakes later in their life. To do this lots of new equipment needed to be shoehorned into an already full locomotive.

The best/worst example of this was the need for a large main air reservoir. There was simply no room for a single tank, so smaller (approximately 1m) tanks were fitted all along the underside of the loco.

We have, today, started the task of cleaning the air tanks prior to them being internally "sand blasted" prior to inspection and certification.

Obviously this is a big and cumbersome job as the tanks need two people to move around!

But it's a satisfying start.

Another roasting hot day, but guaranteed to be dry. So it was an early start to beat the worst of the mid day and aftern...
11/07/2026

Another roasting hot day, but guaranteed to be dry. So it was an early start to beat the worst of the mid day and afternoon sun and an early finish. We have completed the fitting of all the B side cylinder head fuel pipes and injector trays. The photos show the kit of parts for one cylinder head and also the state of the rubber bushes that came off 118 for the injector pipes compared with the new ones that we have purchased.

The Yorkshire team have made a start on grill box number 6. On a day when we are trying to melt (weld) steel, the climat...
08/07/2026

The Yorkshire team have made a start on grill box number 6. On a day when we are trying to melt (weld) steel, the climate is trying to melt us. We got the side cheeks all trued up and ready for the next bit of assembly. Although the photo looks very similar to the last grill box, it was genuinely taken today.

We’ve had a good weekend. The engine team were available, and as everyone will know, it was guaranteed no rain, so we co...
28/06/2026

We’ve had a good weekend. The engine team were available, and as everyone will know, it was guaranteed no rain, so we could have the hatches open. It was still ridiculously hot in the engine room though. We have made a start on fitting the injector pipes, the trays that they sit in and all the associated parts. The pipes sit in rubber bushes in a clamp inside the tray. The bushes that came off 118 were so old and brittle that they disintegrated when being removed from the pipes. New bushes have been purchased, made to the original design and spec. The injector spill pipes are made from a nylon material that is clipped to the push rod guides with Terry Clips. Most of the Terry Clips that came off 118 just snapped, and the nylon pipes were also so brittle that they too were not fit for re-use. Central Birmingham Springs made us a batch of Terry Clips again to the original design, and the nylon pipes have been replaced with genuine english electric items that were old stock sat on the shelf at Everllence, (ex MAN, ex Ruston) at Stockport. New nitrile rubber hoses have been purchased that connect the injector trays to the cylinder head intermediate covers. The only bit that we haven’t had to source this time round are the jubilee clips that hold the hoses in place. We have boxes in stock from the early 1990’s ex Stratford Works. These have been sat in the store waiting, for just a few years. The timing chain tension was rechecked at fixed intervals to ensure that there was no localised stretching as recommended to us previously. Fortunately, although the timing chain is at its limit of the permissible wear and stretch, it is still within tolerance and there is no localised stretching. Thanks to Stuart Hurst for the advice. Good progress has also been made with restoring 3 phase power to our workshop, although the completion of this bit of the project is still a few weeks away. The photos show the progress at various stages of the work.

There has been plenty going on over the last few weeks, but nothing really worth photographing, or talking about. Howeve...
21/06/2026

There has been plenty going on over the last few weeks, but nothing really worth photographing, or talking about. However, another step forward was made today by the Yorkshire team, who completed the fabrication work on grill box number 5. The same photos as the previous grill boxes show that it all aligns nicely with the grill box that we are using as a pattern along with the drawings.

No matter how closely you follow the overhaul schedule, there are certain jobs that can only be done when it's almost to...
16/05/2026

No matter how closely you follow the overhaul schedule, there are certain jobs that can only be done when it's almost to difficult to do them! One such job is checking the power unit timing chain. This links the crankshaft to the two camshafts and keeps them synchronised allowing the power unit to run properly.

Getting to the chain to check it's deflection (it's allowed a small amount of slack) is a job not for the faint hearted as it needs arms the length of a gorilla.

However, we have today been able to get at the various inspection hatches and check the timing chain. Which was within the design specification.

An important milestone and something that we were generally relieved about!

After grill boxes 3 and 4 got sprayed last weekend in anti corrosive primer, the Yorkshire team were back on with anothe...
02/05/2026

After grill boxes 3 and 4 got sprayed last weekend in anti corrosive primer, the Yorkshire team were back on with another day of fabrication of grill box number 5. Plenty of other bits and bobs going on with good progress made but unfortunately not many photos.

We are making a new set of roof side grill boxes, which are being made by a member in Yorkshire and once delivered to Sh...
25/04/2026

We are making a new set of roof side grill boxes, which are being made by a member in Yorkshire and once delivered to Shackerstone are prepared for painting.

Today the weather meant we could spray two of the ten into green primer.

Busy day today with lots of bits and pieces being progressed.We have refitted all 16 Decompression Valves, with new copp...
18/04/2026

Busy day today with lots of bits and pieces being progressed.

We have refitted all 16 Decompression Valves, with new copper caps, and new tab washers. We then refitted all the power unit inspection doors which had been loose fitted for some time.

Next we started to get in a position to check the timing of the power unit, which will involve checking and potentially adjusting the timing chain tension.

We also cleaned and checked the injector feed and overspill pipes ready for refitting (all 32 of them).

Then after a cup of tea, we moved onto prepping the next two grill boxes for painting. Today's work was giving them a deep clean and emery clothing and then tank swilling the drain tanks with an xylene based waterproofing paint.

Address

The Battlefield Railway
Shackerstone
CV136NW

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