We have a rototiller engine mounted to a go cart. It is spewing oil, the pvc valve is bad, how can we fix it?

We washed it out with gas and it seems clean, but once the engine is under preasure the oil leaks out.We have a rototiller engine mounted to a go cart. It is spewing oil, the pvc valve is bad, how can we fix it?
I never heard of a small engine with a PVC valve, what kind of engine is it? Are you sure it's not blowing oil out of the oil breather hose? If it is, either it is overfilled with oil or the piston rings are worn out or cracked.We have a rototiller engine mounted to a go cart. It is spewing oil, the pvc valve is bad, how can we fix it?
Good chance that you have a gasket leaking. You might be better off getting a new engine. (I should say, used engine from a mower shop.)
Get the engine model and serial number off the engine, it is usually stamped on the metal engine shroud. Go to ';outdoordistributors.com'; and look up your engine model. You can than order the part you need. Also, make sure that you are not overfilling the engine with oil. I have a mower that has the wrong dipstick and it is easy to put too much oil in it. Assuming it is about a 5hp engine, it should only take about 3/4 of a quart. It could also be that there is so much blowby that you are pressurizing the crankcase. In that case new a new piston and rings might help it.