WORKSHOP DISPATCH – 23–27 FEBRUARY 2026

A week of challenges on the ‘Black Sea’ Sturmgeschütz III, plus an exciting visit to The Tank Museum.

BLACK SEA STURMGESCHÜTZ III

Following last week’s fuel pump investigation, we replaced the original diaphragms and tested them by starting the engine. This time, the ‘Black Sea’ StuG ran on its own fuel – a significant step forward.

However, the test revealed two new issues. First, we noticed two cylinders weren’t firing. We suspect this may be caused by two wires being crossed at the magneto, but we haven’t been able to confirm this yet.

Second, after running the engine for a short while, a puddle of water appeared underneath – the left-hand radiator is leaking.

We decided to remove the radiator to locate the leak. Without the engine deck removed, this proved to be a tight and difficult job. Once freed, we discovered the radiator wouldn’t fit through the engine hatches anyway, so the decision was made to remove the engine deck entirely.

Alex and Martin spent Friday preparing for this, and removal will take place on Monday. This will be the first time the engine deck has come off since the restoration was completed. With better access, we’ll also be able to investigate the misfiring cylinders properly.

THE WHEATCROFT COLLECTION SD.KFZ.223

While the ‘Black Sea’ StuG work progressed, Terry and Tom continued working on the windscreens, they are getting close to get them finished.

THE TANK MUSEUM VISIT

On Tuesday, the team visited The Tank Museum in Bovington to meet their workshop team. Practically the whole Foundation team attended, along with our Trustee, Guy Portelli.

It was a fascinating visit and a great opportunity for both teams to get to know each other. Some very interesting discussions were held – and while we can’t say more just yet, we look forward to sharing news of a collaboration in due course.

LOOKING AHEAD

Next week begins with removing the engine deck from the ‘Black Sea’ StuG on Monday. From there, we’ll investigate the misfiring cylinders and locate the radiator leak. There may be more to uncover once we have full access to the engine bay.

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