Crank shaft journal

C

cfish

Member
The rod that is connected to the crank shaft broke melted some aluminum to it the mower is.a Murray ridding mower with 15.5 hp engine

How do I remove the aluminum without destroying the crank shaft
 
Best way I have found is to soak it is muriatic acid. Must be done in a very well vented area (outside is best), rubber gloves, safety glasses, nose out of the way. Muriatic acid is technical hydrochloric acid, so you must be very careful when working with it. The acid will eat away the aluminum and leave the steel.
 
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