ocilator help

[stem fan1]

currently i am building an ocilator for school and first time i ran it, it ran beautifuly after i pulled it apart to put the base on it i reconnected it and it barely ran at 25psi anyone sugest something

[RBrandes]

Look for friction and air leaks.
Regards, Ray in FLA

[probinson]

We will need a bit more specific information to offer any real help. A picture would be extremely helpful. I am sure some here can help you out but we need some more details but here are some basic troubleshooting steps.

First thing to do is to make sure everything spins or slides freely. If nothing is binding then move on to leak and valve timing tests.

To do this just apply some air pressure and slowly turn the crank by hand.You can simply blow in the pressure tank for this because all you want to do is see if it is see if it leaks too badly or tries to change directions while you turn the crank. You should feel it pushing in the power stroke (the air pressure should be helping you turn the crank) and it should turn freely during the valve changeover. If it fights you at any time then your valve is out of sequence.

Hope that helps.

[bogstandard]

Seeing that you have already had it running well, the only real thing that can be the problem is the spring tension. Just apply continuous pressure (not too high), and then starting with the spring fairly tight start to back it off half a turn at a time while turning the crank, eventually the engine should start to turn. The point of balance is to set it up so that it runs but doesn't leak anything out of the port faces, many people have the spring too tight.

John