If the head is still on the engine, you can purchase a kit at most auto parts stores that includes: an air fitting to keep the cylinder filled with compressed air to prevent the valve from dropping into the cylinder, and a special wrench to attach to the rocker stud and press down on the spring retainer while you remove the locks.
If the head is off the engine, you will need a valve spring compressor, which is a large c-shaped tool that pushes on the valve's head on one end and the valve spring retainer on the other end.
Also you can buy/rent a valve spring compressor that you can use while the head is still on the engine but you will still need to blow air into the cylinder through the spark plug hole to keep the valve up.
you need to compress the spring with a valve spring compressor tool, and then remove the valve keepers, and retainer.
You dont compress a piston with a C clamp, you use a piston ring compressor to compress the rings and tap the top with a hammer to sit it back in to the cylinder bore. The C clamp is used for compressing valve springs. *AArOn*
You can do it on the car by pumping compressed air in to the cylinder (must be at TDC). The compressed air will keep the valves pushed up while you remove the valve springs. The downside to this that you will have to have a special tool to compress the valve springs to remove the keepers and you can only do 1 cylinder at a time because each piston must be at top dead center.
Yes.. The combustion chambers are different
Assuming you mean the exhaust and/or intake valves. # Remove the heads # Borrow, rent or buy a valve spring compressor # Use the spring compressor to compress the springs (one at a time of course) # Remove the valve stem "keepers" # Push the valve out through the head.
No. The valve springs can remain on the head when removing the head.
A valve spring compressor
The camshaft opens the valve via its Lobes, against the valve spring, to open. The valve springs closes the valve back.
Valve springs keep valves firmly seated in the socket.
Valve springs
The valve springs.
Valve springs are not torqued they have no bolts on them at all, they are held in place by keepers that fit into the notches on the end of the valves.