Cummins 4BT & Diesel Conversions Forums banner

deutz valve seal break-in

  1. Deutz & Other Aircooled Diesels
    I bought a BF12L413F from a salvage yard some time ago. The engine was seized. After I got it un-stuck I ran it and it seemed to run ok. I revved it up and suddenly one cylinder started crashing and clanging. I could feel pulsing from the intake. So I took that cylinder apart and found a broken...