31cc ryobe engine

[Russ2251]

Broken rings can sometimes occur if ring gap aligns with exhaust port. End of ring can snag and snap. This is why some 2 cycle manufactures will pin rings to prevent them from turning in cylinder bore. Would be a good idea to put a small champher on ring end gap for rings that are not pinned.

 

[Kenny_McCormic]

Oh and BTW, sandboxes do not float with people in them.

 

[ed1380]

thanks for the heads up

 

[oscaryu1]

It will wear in, we're talking about abusing beater engines, not making good quality runners.

And that's where we differ

 

[Kenny_McCormic]

I can build a quality engine, just chose not to in the leafblowers case.

 

[oscaryu1]

Well I like to put every engine to use, so usually I try to make them as good as possible. But hey, to each his own.

 

[sayre315]

this is why i sanded the top of the piston

http://s276.photobucket.com/albums/kk10/sayre315_bucket/?action=view&current=sayrepic035.flv

 

[ed1380]

sanding the top of the piston is totally ok

i usually take the wire brush on the bench grinder to it

 

[jr dragster T]

I dont see whats wrong with sanding it as long as you dont mess up the edge of the piston. Im with ed. But I wouldnt use a wire brush in bench grinder though.

 

[sayre315]

thx for the help tyler and Ed

 

[Russ2251]

I can just imagine the look on my face when a mechanic tells me he sanded my pistons.
Sorry guys, but this is just plain dumb.
Where does it say that it's ok to sand any piston?
Let the flaming begin!!!

 

[jr dragster T]

I know I would hate it if somone said that to me but he's already done it. I wouldnt do it to my engines I just use alcohol or somthing else to clean my pistons.

 

[sayre315]

i didnt sand past the top of the machining rings

and didnt have any alcohol

 

[Russ2251]

So called "machining rings" are actually wear indicators.

 

[sayre315]

that to

 

[oscaryu1]

You sound quite young Good! Always good startin off early.

Anyhow, a dremel and wire brush could've done quite some good.

 

[sayre315]

i'l be 13 in august

 

[oscaryu1]

Great to see there's guys like me out there

 

[gocartkid]

Great to see there's guys like me out there

Uh....is that good or bad?

 

[jr dragster T]

Its a good thing. I've been stripping down engines and pretty much anything with a engine on it since I was 8.