It is junk please please send it to me!
Assuming it is a single cylinder Briggs Intek and only the rod is damaged: The problem with these engines is that the head gasket fails. The $10 head gasket is not all that difficult to change but generally people keep using them and bust the rod. That makes it a bad engine.
The big end of the rod seized to the crank and has left aluminum deposits on the crank. These can be removed with muriatic acid. Be sure to get all the aluminum off or it will seize again.
Get a new rod. Tear down and clean the engine top to bottom, and put it all back together. If the cylinder wall is in good shape there is no need to hone because the rings are already seated.
While you have the engine apart mark the flywheel with the piston 1/4" past TDC. This will make setting the valves easier.
I have seen a new procedure for torquing the head that is supposed to fix the problem with the gasket. Not sure where, maybe here. I have asked Briggs for a link to their service bulletin as my info is 2nd hand.
New head torque, 250 inch lbs in 3 steps.
Pattern, original order is black, new order is red.
Assuming it is a single cylinder Briggs Intek and only the rod is damaged: The problem with these engines is that the head gasket fails. The $10 head gasket is not all that difficult to change but generally people keep using them and bust the rod. That makes it a bad engine.
The big end of the rod seized to the crank and has left aluminum deposits on the crank. These can be removed with muriatic acid. Be sure to get all the aluminum off or it will seize again.
Get a new rod. Tear down and clean the engine top to bottom, and put it all back together. If the cylinder wall is in good shape there is no need to hone because the rings are already seated.
While you have the engine apart mark the flywheel with the piston 1/4" past TDC. This will make setting the valves easier.
I have seen a new procedure for torquing the head that is supposed to fix the problem with the gasket. Not sure where, maybe here. I have asked Briggs for a link to their service bulletin as my info is 2nd hand.
New head torque, 250 inch lbs in 3 steps.
Pattern, original order is black, new order is red.
