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-   -   Cast crank destruction (https://www.offshoreonly.com/forums/general-boating-discussion/333665-cast-crank-destruction.html)

sutphen 30 01-12-2016 06:47 PM


Originally Posted by Wally (Post 4392992)
You mean something like this? :D Buddy found this in his street cruiser....not sure the exact cause but he speculates the front cap was not torqed down 100% said it broke loose like he could have taken it off with his fingers... :(

some jb weld and its good as new.:D

mike tkach 01-12-2016 07:09 PM

when i went out for the test ride in my 38 fountain the port motor broke the lunati forged 4.5 stroke crank,it took the main cap with it.needless to say that was a bargaining chip for me.i planned on going through the engines anyway.

payuppsucker 01-13-2016 08:14 PM

Never used up a GM cast but I killed a couple of GM forged units.

airjunky 01-14-2016 09:40 PM

Have seen a few cast cranks in the std peanut port app snap , really kind of a bizzare failure.
Have seen them come out of the womb with different sized bearings too ,to get them out in the market.
Think the guy running the cast bbc crank division at the general must of been somebodys relative..

class6 01-15-2016 05:52 AM

Things go up,come down. Build things, they blow up! its the fun factor of life and powerboating. Its keeps you with all the latest parts!


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