I have here a very nice vintage lawn-boy f-series 2 cycle engine for lawn-boy self propelled mowers using the capstan (drive roller) drive set up. I have taken this engine down to nothing and cleaned and overhauled it and it is now ready to be put into service once again. The piston rings, rod bearings, and crank bearings are all new. The piston was an excellent used condition piston i had on hand and has been cleaned of carbon and polished. The cylinder was was completely cleaned and de-glazed achieved by doing a light hone.
There are no grooves in this cylinder at all. The carbon build up was minimal so no damage had taken place to the cylinder walls.
This engine is ready to mount on your deck, install your models parts and go. This engine can work on both compliant and non compliant mowers. The number on this case will not come back to any particular model.
I believe this was the original number for a short block replacement. Which probably explains why the cylinder was in such good condition already.
The item “Vintage Lawn Boy Lawnboy Lawnmower OMC shortblock, 2cycle, Mower, 681430 F Engine” is in sale since Thursday, January 09, 2014. This item is in the category “Home & Garden\Yard, Garden & Outdoor Living\Lawnmowers\Walk-Behind Mowers”. The seller is “920calico” and is located in Oshkosh, Wisconsin. This item can only be shipped to United States.