Originally Posted by
BoostedTalon00
You can. You will need to get a threaded fitting that will screw into your spark plug opening and use an air compressor w a regulator and hose to the fitting to get the cylinders under air pressure to hold the valve from falling into the cylinder. Depending on the motor you have, if its a 4G63, you will need a custom valve spring compressor and not your ordinary one from an auto parts place. I would recommend thinking about getting your hands on that first.
+1 and for the fitting get a compression tester and pull the valve out of the end and screw it into the spark plug hole and hook your compressor to that. You shouldnt need a regulator though. The compressor dosnt have enough pressure to hurt anything but, as stated you need to find the spring compressor or make one.