300hp Cummins 6bta rebuild
Posted: Sun Aug 09, 2026 12:29 pm
So I get bored easily and whilst looking for a suitable boat decided to see if I could build up a pair of decent motors. A chance browse of flea-bay threw up a chap selling two cummins in bits, that he had hoped to rebuild, before running out of time, money and mojo. The thing that sealed it for me was that they came with all the marinising gear, which looked ok. I farmed out the testing of the marinising gear and the overhaul of the fuel metering units to professionals. but the rest of the rebuild was my work. Both seem to run nicely - now for a boat to put them in!
https://www.youtube.com/shorts/JI8GpV3gZDI
https://www.youtube.com/shorts/JI8GpV3gZDI