B&S 675 Series Camshaft Problems? Overheat? What did I do?

[ILENGINE]

it looks like from briggs the 126T02-0521-B1 gets replaced with the 126L02-1005 but you have to transfer the flywheel from the original engine to the new engine and remove the 691921 rope starter and 694849 crankshaft from the replacement engine and install the 392259 rope starter and 694478 crankshaft. But it appears that the 126L02-1005 has been replace with the 104M02-0182-F1 So I don't know what the conversion would be for that engine

 

[l008com]

Well then fingers crossed I really don't need a new engine! I suppose the best option if I did would be to buy the harbor freight engine and bring it to a machine shop and see if they could mill the shaft somehow to make it fit

 

[l008com]

Update:

I fired the machine up today and it started pretty easily and seemed to run well. I let it run for about 15 minutes. It was very cold out today, about 32°. I had sprayed fogging oil in the cylinder so there was a normal big cloud of smoke at first, but that went away after a couple of minutes.

The machine seemed to run great, no problems. HOWEVER when I shut it off, it was smoking. Not from the exhaust, the thing was just oozing smoke. Like it was running hot. Is this normal? The only thermal control is the spinning flywheel and I'm 100% sure theres no crap jammed up there at this point. So on a cold day like this, the thing should be running ice cold.

What do you make of that? I don't recall ever seeing my lawnmower smoking like that after warming up

 

[slomo]

Do the video again, without the jet plane overhead. I can't hear the music.