Topic: Engine sleeve question....

[Tom Fox]

How do engine shops resleeve a small air cooled engine like we use???

[Hitch]

We bore the block to .005 undersize from what the sleeve is & heat the block up to temp & drop it in,then bore sleeve to fit piston.We leave a 1/8 in. lip at the bottom so theres no way it can move.We can sleeve any of the small engines out there as long as they make a sleeve for it. 

[SeanStanley]

Thats how i used to do it
not since the one time i did it, sleeve got stuck, went to pull it out. The block began to move,
grabbed it with the other hand  talk about pain

[George Herrin]

If its bored true and ya got no burs and its eveny heated (takes experiance to do so) it drops right in every time.

[Tom Fox]

This is all just curiosisty questions that got initiated talking to a kart racer whom I just met. He wanted to know if I knew anyone who could put a new sleeve in his engine and that also made me wonder how that process works..

Now if an engine already has a sleeve....it has been bored out to the max...how does the old sleeve get removed for the installation of a new one??? Do you bore it till it's gone??

[George Herrin]

Yup you bore the old sleeve out. Any good engine man always leeves enough room to resleeve. Carroll my boss they been doing these 5 hp motors since he was a kid. EC Bert the founder of the company started with motocycles years before that, even had there own works bike at one time. Histroy and experiance runs deep with them two.

[Tom Fox]

Thanks George!!!!

After looking thru the new EC site, reading the history of the company, the people whom work there....makes me want to head down south and apply for a job with EC!!!

[Don Gienger]

Yeah it definitly takes a guy knowing what he is doing to do the job.
The guy that does the boring and sleeving and crank grinding for me is a guy I have known all my life. He is much like me and has done everything under the sun too.
Since we live in Farm country up here and the Rail Road is near by too it is funny to see my Briggs blocks and cranks sit along side cylinder heads of a 12 cylinder Diesel rail road engine and along side the old JD motors.
Also this is Sled country in the winter so John has plenty of Jet Ski to Snowmobile motors to work on too.
John has done karting in his life and builds all sorts of motors. I have yet to come up with a combo we can't knock out.
Most days when I stop by to drop off or pick up it takes me an hour or so since he is like me too and will talk your ear off!!!