20 hp briggs valve fail

[freakboy]

I just bought a lawnmower from my brother and he couldnt get it to run he said it needed a new coil but i though something else was up so i pulled the head and turns out intake valve is always open so i tried moving the flywheel and nothing happend. I also lightly taped into place and then turned the flywheel and it was really hard and it pushed it back out but it didnt go back in. how would i go about fixing this? I can get pictures up if someone needs them and its only this one cylinder thats doing it.

 

[jr dragster T]

 

[freakboy]

here you go the top one is the one stuck open

here is the head

the mower its from(well part of the mower)

the engine

 

[Affair_driven]

Chances are valve stem and valve guide are jammed up with crud.
Worst case...valve stem is bent.
Disassemble valve train and clean parts with a denture brush and kerosene.

 

[freakboy]

Ok thanks and before my brother bought this mower it was sitting out in the rain for a few years. so it might be rusty on the inside but the cylinder for the piston looks good its just that one valve the others are just a little dirty.

 

[freakboy]

I Finaly got the engine in my basement so i can work on it is parcialy dissasembled what is the easyest way to get the valves out????