300HP merc Varados snapping gearboxes

Discussion in 'All Things Boats & Boating' started by Frosty, Jan 20, 2011.

  1. Frosty

    Frosty Previous Member

    Ferry 40ft,-- 4 x300 mercs Verado, open deck seats approx 40 people strapped in. 1600 liters fuel. 60 mile trip open sea.

    cruise RPM 4400 RPM limiter set 6200.

    Counter rotation gearboxes 4 now in 500 hours, warranty now out.

    Reasons for failure unkown yet eys witness says gearbox housing cracked open.

    I suggested cutting rev limiter to 4400 sychronise electric throttles and check electric gear selection.

    I cant think of much else.
     
Loading...
Forum posts represent the experience, opinion, and view of individual users. Boat Design Net does not necessarily endorse nor share the view of each individual post.
When making potentially dangerous or financial decisions, always employ and consult appropriate professionals. Your circumstances or experience may be different.