[Purdy Swoft]

The main reason that I avoid removing the head is the risk of broken head studs

A quick and easy way to get snake oil of choice to the valves is through the vacume line with the engine running .

I disconnect the vacume line from the firewall .

I either bend the original vacume line for the procedure or make up another vacume line so I don't have to bend the original .

With the engine running .

Connect one of the vacume line to the vacume port on the intake manifold .

Stick the other end of the vacume line in the bottle of the snake oil .

The vacume of the engine will pull the snake oil right in to the valves and stems.

Sometimes valves are so tightly stuck that more drastic action is necessary.

I have in some cases removed the valve spring on the stuck open valve .

I then break out the vise grips with the round gripping area.

Sometimes I remove the manifolds so that I can spray penetrant on the valve stem above the guide through the intake or exhaust port .

I then carefully grip the mushroom end of the valve stem with the vice grips .

No need to grip the valve stem with enough pressure to scar up the mushroom . It WON'T be stuck tight enough to require that much pressure .

Move the vice grips left and right while spraying penetrant on the upper and lower valve stem .

Pretty soon the stuck valve will loosen up enough That you can remove the vice grips.

I then reach in with my hand and continue to turn and push the valve up and down until the valve moves to my satisfaction .

I then reinstall the valve spring and side cover .

If it works out , the valve will be unstuck without removing the head

There is no risk of the HORROR of a broken head stud .