you need to compress the spring with a valve spring compressor tool, and then remove the valve keepers, and retainer.
It's actually a type of clamp used to install or remove valve springs in auto engines .
A valve spring compressor is used to remove collets in a car. The tool compresses the valve springs in the cylinder head of the car allowing the collets to be removed.
Yes.. The combustion chambers are different
No. The valve springs can remain on the head when removing the head.
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.
Remove cylinder head, Remove valve side cover, Remove valve springs to free valves, Measure gap between end of valve and cam follower, while pushing valve onto seat with finger, To make gap larger, pull valve out and grind some metal from end with bench grinder, (carefull here), When gap is correct and valve seats without turning under finger, Reassemble.
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.
A valve spring compressor
Answer to my own ?. Once the valve springs have been removed. pull out the valve seals with pliers. These will need to be replaced with new ones. The bottom valve spring seat will now slide out off the valve guide.
The camshaft opens the valve via its Lobes, against the valve spring, to open. The valve springs closes the valve back.
to do this ,( if i understand your question), the oil valve seals are located on each valve inside the valve springs. To get to them you must remove the head and use a spring compression tool to release the valve springs to get to them.They have to be replaced ,there is no " repair ".Yo can also pressurize each spark plug hole with compressed air to keep the valves up so you can replace the seals, this will save you from removing the head as long as the valve does not drop into the piston chamber.Hope this helps.
Valve springs keep valves firmly seated in the socket.