Uploaded February 2026 | Updated September 2026, 5 hours ago

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This is part 10 of the series looking at the full restoration of a customer’s Unimog 421 originally manufactured in 1972. In this instalment the Unimog is back on its wheels, the injector pump and clutch are fitted and the engine goes back in - but there are problems to solve before it can run...

Previous episodes of this restoration series can be found here:
Part 1: youtu.be/bfAGj-QTScQ?si=OHR0OSEzSLcYLQMn
Part 2: youtu.be/i_htsOGOC5Y?si=IHKTNP1EL17v0tVG
Part 3: youtu.be/2_J_5WlybBc?si=-dUJNYEFVr4uxYqG
Part 4: youtu.be/3wtc4PapeUY?si=PNklPOsTbORPmio0
Part 5: youtube.com/watch?v=OeL9kv4iu9o
Part 6: youtu.be/ysqgH7mijpw
Part 7: youtu.be/iySGoYyXBmc
Part 8: youtu.be/dHxkVbAKPwc
Part 9: youtu.be/bBU1fb_wQmw

For further details about Atkinson Vos and their diesel injector workshop follow this link:
unimogs.co.uk/servicing/diesel-injection-workshop

Previous videos explaining the dual plate clutch replacement on a Unimog 421 can be found here:

Part 1: youtu.be/rXig04stJ2c
Part 2: youtu.be/jMUtjBi6qPA
Part 3: youtu.be/71GS6cDATTU