Senior Member
ProBoat Impulse Strut Crack
Has anyone experienced their strut crack like this? What caused it? The boat ran great last time I ran it. I did not notice this until today when I was pulling the shaft to lube it for this weekend racing. I always lube the shaft with either Prather or Grim Racer shaft lube before I run it.
IMG_0912.jpg
Senior Member
Out of balance prop maybe?? I've had a couple of strut failures due to poor Chinese castings VS machined, but none quite as severe as that. JIM
JIM MARCUM: NAMBA 777; EX? SoCal FE Racers Club; D-19; Official 2012 NAMBA FE Nationals Rescue Diver; Purple Heart Viet Nam Vet; Professional SCUBA/HOOKA Diver, KELCO, 1973-1978; BBA 1978, Magna Cum Laude; MBA 1980 w/honors; Retired DOD GS1102-12 Contract Specialist
Senior Member
I think it was just defective as the prop is balanced. The metal is actually brittle like plastic.
Senior Member
Luckily, Struts are cheap. I'd call Pro Boat first & they may send you a replacement free. JIM
JIM MARCUM: NAMBA 777; EX? SoCal FE Racers Club; D-19; Official 2012 NAMBA FE Nationals Rescue Diver; Purple Heart Viet Nam Vet; Professional SCUBA/HOOKA Diver, KELCO, 1973-1978; BBA 1978, Magna Cum Laude; MBA 1980 w/honors; Retired DOD GS1102-12 Contract Specialist
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