Yes, there is a handheld tool that will compress the valve spring so you can get the "keepers" out to remove the spring and seal. You will need to have the piston at top dead center, and compressed air bleed into the cylinder from the spark plug hole or a piece of rope stuffed in the cylinder to keep the valve from falling into the cylinder while you work on it. Remember to remove any burrs or "mushrooming" on the end of the valve stem to not tear up your new seals. The tool grabs the lower part of the valve spring, has a hand wheel you turn to compress the spring and will keep it compressed while you remove it. You must be sure the piston is exactly at top dead center, or the compressed air will push it down, you do not need a lot of P. S. I. of air, just keep the valve from falling. (65 Imperial). (afterthought, if the valve rockers are off, and the whole side would be, you do not need the piston at t. d. c. it will not matter, just watch the fan, if the air moves the piston, and turns it quickly to the bottom.)
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