Answer
Jun 24, 2025 - 02:49 AM
Yes — this manual does include full step-by-step procedures for replacing the cylinder head gasket on both Yanmar 3TNM68 and 3TNM72 engines, complete with all related torque specs and tightening sequences. You'll find exploded diagrams, valve train disassembly, head bolt torque procedures, and reassembly instructions — all backed by OEM specifications.
As for compatibility with your 2012 Yanmar SC2400: yes, that model is equipped with the Yanmar 3TNM72 engine from the factory, which is one of the two engines this manual covers. So this manual is a direct match and includes everything needed to service the engine in your SC2400, including head gasket replacement and more.
