Changing valve springs on car

As far as a fitting for the air compressor, you can use a compression tester hose. My Mac Tools has the quick disconnect already attached. Some of the cheaper compression testers have a scrhder va. you might have to remove, but should still work. The cotton/nylon rope trick works good also.

There are 2 different tools available that will work. One is a flat bar arrangement that you hook under the rocker arm shaft and push down. The other, more common one is a jaw type that works on engines that don't have rocker arm shafts.

Also, be sure to take a deep socket that is just a little smaller then the va. spring retainer. Prior to trying to remove the va. springs place the socket on the top of the retainer and give it a couple of good wacks with a hammer. This will allow the keepers to semi-release from the valve and make their removal much easier.

Use a little white grease on the va. groves upon reassembly will aid as a bonding agent to hole the keepers in place prior to getting the retainers back in place.
Mac