Parts for old mower engine

[lavatan]

Hello,

The B&S engine on my Swisher Big Mow seized last year. I would like to get the engine rebuilt as the mower has sentimental value to me. I can find most parts except for the most important ones. I can't find the crankshaft, counterweight or cylinder assembly. I will list the model and part numbers below. If someone has any idea how to get these parts NOS or otherwise I would be extremely grateful. I have tried two different online sources and both times I've received notices that these parts were not available from their warehouse or their supply chain.

Engine Model:
195707-0431-E1
Parts:
Crankshaft 495629
Counterweight 690619
Cylinder Assy 495726

Thanks in advance.

Edit: The date code on the engine says its from 1996: 961015YD

 

[Craftsman Garage]

Why do you need a new cylinder, counterweight, and crankshaft? Unless they are damaged or out of spec, you should reuse these parts. No reason to replace them.

 

[Craftsman Garage]

Is the con rod welded to the crank?

 

[lavatan]

There is so much gouging and galling in the cylinder walls, crank journal and connection rod that it's not feasible to reuse the parts.

 

[lavatan]

I should also say that the con rod and counterweight shattered when the engine seized.

 

[Rivets]

Do you have any small engine boneyards with 100 miles? If you do you may find a few scav engines which you can frankenbuild into one good unit. If not what about shops in your area who take trade ins or allow people to dispose of used equipment. When I was teaching my students, who were short on $$$ would scavenge these sites and most times found what they wanted. I was lucky and had a boneyard 80 miles away and have become friends with the owner to when I’m allow free access to the property. Just a thought.

 

[lavatan]

Do you have any small engine boneyards with 100 miles? If you do you may find a few scav engines which you can frankenbuild into one good unit. If not what about shops in your area who take trade ins or allow people to dispose of used equipment. When I was teaching my students, who were short on $$$ would scavenge these sites and most times found what they wanted. I was lucky and had a boneyard 80 miles away and have become friends with the owner to when I’m allow free access to the property. Just a thought.

I will definitely take this into consideration and send out some feelers. I'm not aware of any small engine salvage yards near me but I've never really looked either. Thanks for the suggestion.

 

[Tiger Small Engine]

I will definitely take this into consideration and send out some feelers. I'm not aware of any small engine salvage yards near me but I've never really looked either. Thanks for the suggestion.

Did the engine run low, or out of oil? If the piston, rings, cylinder, crankshaft, and cam are all heavily scored, most likely this engine is not able to be rebuilt.