Seized engine

[Jags]

It either is or it ain't. If it runs - run it. The material used in crank bearings on small engines can bind on the smooth surface of the crank with lack of oil. It is possible that it kinda polished itself back off. If that is the case, you probably shortened the life of the engine, but who knows, it could run for a long time.

 

[jb6l6gc]

Gotcha. I have since run it for ten minutes at a time and not had it stop. Could I be out of the woods?

Ya could be. I'd say go with it!!

 

[brenndatomu]

Often times the rod has no bearing between it and the crank on these small engines, aluminum directly on cast iron. The only thing between the two is oil, except when it ain't. Sometimes there is a little bit of aluminum that galls to the crank, that may be what was jammin things up. Sometimes you can get in there (without complete engine disassemble) to unbolt the rod cap, get a look at things. Sometimes you can just carefully knock any aluminum transfer off the crank with a lil pressure from a screwdriver or something (don't scratch the crank). But often times you have to use muratic acid to eat the aluminum off the crank. The acid will eat the aluminum but not the iron of the crank...

 

[DodgyNomad]

You sure could be. Nothing really to lose. Could be the crank to rod area that was damaged, or rings. Either way, I'd heat cycle it a few times and run it. Can always toss a hundred dollar HF engine in it, or buy a rebuild kit from Napa. At this point, it's a science experiment, so I say run it!!

Lastly, I'd be using Rotella T6 in this motor and I'd be adding extra ZDDP and Moly in it if you're able. You'll likely need the lubrication.