Connecting rod snaps off 1979 merc crank still ran

[paul tracy]

ok so if you read my other forums you,ll see that i am sure having problems one after the other, with my tower of power so after blowing my piston for the second time i open it up to find the connecting rod snapped off crank this time around and melted it to **** and still made it to the dock with only 5 working STRANGE like i said it was running fine all the way up the river and back and almost back am ready to give up on it this is the third time this summer this has happend and this is the worst yet PLEASE GIVE ME SOME ADVICE

 

[latin monkey]

Re: Connecting rod snaps off 1979 merc crank still ran

seems like its running too lean if you are burning pistons and now a broken rod

 

[latin monkey]

Re: Connecting rod snaps off 1979 merc crank still ran

you might have lost some bearings in that rod also, if you have it apart i would replace all bearings and rod bolts, rebuild/clean carbs and adjust mixtures

 

[Chris1956]

Re: Connecting rod snaps off 1979 merc crank still ran

You had best inspect the block and crankcase cover for holes. Broken rods create them easily.

Did you have nuts and bolts on that rod or was it capscrews w/o nuts? The bolts and nuts are reuseable, the capscrews are not, and will result in the bearing cap seperating from the rod, during use.

You need to mic up the cylinders and see which ones are out of spec. Bore OS and replace the pistons. Inspect bearings and other moving parts for damage.

Clean and rebuild carbs and fuel pump and link an synch motor.