B/S 17.0 OHV flywheel wont turn

[ILENGINE]

If you still have the spark plug in that 1/2 revolution would be the compression stroke, and will be quite difficult to turn by hand if everything is working properly. Removing the plug will make it easier to turn through that area. If the plug is out when doing this sounds like there could still be something hanging up.

 

[Basstracker94]

One thing I though about is that i drained all the oil out of the engine. Would that make a difference in how easy it is to turn?

 

[bertsmobile1]

Not untill you start the engine.
'Actually oil add viscious drag at low speeds.
The only things to resist the rotation is the compressing of the vaalve springs and compression in the engine itself.
Pull off the rocker cover and watch the valves if the "hard" bits co-incide with a valve moving then what you are feeling is normal.