Unimog 421 Restoration (Part 11): OM616 Cylinder Head overhaul, but will it run? @Classicworkingvehicles
Unimog 421 Restoration (Part 11): OM616 Cylinder Head overhaul, but will it run?  @Classicworkingvehicles
Uploaded March 2026 | Updated September 2026, 3 hours ago
This is part 11 of a series looking at the full restoration of a Unimog 421. The engine has been a non-runner for many years, so in this episode we look at the removal and overhaul of the cylinder head to try and bring this little Mog back to life!

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
Part 10: youtu.be/85XI7VV1bJU
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Unimog 421 Restoration (Part 11): OM616 Cylinder Head overhaul, but will it run?

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