| Re: Replacing valve stem seals |
Subject: Re: Replacing valve stem seals by toptechx6 on 2008/6/25 8:59:51 Sounds like you have a good concept of the process already and depending on the type of compression tester you were using, you may already have the tool for holding the valves up. The compression gauge adapter hose that screws into the spark plug hole is commonly used to put air in each cylinder. Remove the spark plug and rocker arms from the first cylinder to be repaired, next remove the schrader valve from the end of the adapter hose and screw it into the cylinder to be worked on. Before the next step be certain there is nothing near the pulleys and belts on the front of the engine because the engine may rotate a partial revolution once air is applied. Finally attach your shop air hose quick disconnect to the test adapter hose instead of the compression gauge. You will hear some minor leakage past he rings but should not hear air rushing out of the cylinder, STOP if you do until you figure out why, the valves will NOT stay up if there is severe leakage! The valves should now be held closed so you can use a spring compressor to remove the keepers and retainers. See the link for different types of compressors that work without removing the head. http://www.mytoolstore.com/kd/kdengi1 ... KGZuKSVj5QCFQyenAodGVjphQ Either the lever type (912)or screw type (2078) should work, sometimes handle clearance can be a problem using the lever types however. When you finish replacing the seals on the first cylinder's valves reinstall the springs retainers and keepers, disconnect the air hose and move on the the next. Feel free to ask if that isn't clear, good luck. |
