Help Please 1976 johnson 4 hp

[rtpogo11]

hi guys i have a johnson 4 hp runs great but the motor runs super hot the motor is pumping water and that water is boiling any ideas?

 

[oldcatamount]

Chances are good that the impelller has broken apart and the pieces are clogging the water jacket.

 

[rtpogo11]

ok going to check that out if not any other ideas