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Building a Marine Engine Belt Guard - Project Brupeg Ep. 371

1. september 2024 · 32 min · 25K visninger

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Fabricating a custom marine engine belt guard for the Cummins 855 engine on the vessel Brewpeg requires shaping 80mm by 3mm flat bar aluminum to encapsulate the harmonic balancer, fuel pump pulley, and alternator fan.0:42 The process involves bending the aluminum to match the engine's profile, using a manual bender to create precise radiuses, and butt-welding the segments on a stainless steel backing plate to manage heat.10:09 To ensure adequate ventilation for the alternator, the guard incorporates a perforated aluminum sheet secured with numerous small rivets to prevent vibration and rattling.29:57 The final assembly mounts to the engine block using custom standoffs, providing a rigid safety barrier that prevents accidental contact with moving belts while maintaining necessary clearance for alternator adjustment.23:29 A trial fit confirms the guard provides sufficient protection for cadets working near the running engine.2:15 Proper clearance and secure mounting are essential to prevent mechanical interference and vibration-induced noise in custom engine guards.

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