Originally Posted by
blakebecker37130
Hello,
I had the same issue with my 1889 2wd. I pulled the vacuumhoses and other misc. stuff on top of the valve cover, the valve cover, rocker,the push rods, valve retainers/springs and then was able to get at the stemseals. I got my seals from the local auto parts store, forgot p/n. This jobtook me some time being my first attempt.
Be very careful not to drop the valves down into thecylinder head while doing this job. I did do that on one, but the cylinder wasup high enough that the stem did not fall all of the way down. I was able toinsert a bicycle spoke into the spark plug hole and get it under the valve andgently lift it back up. I was using a Harbor freight compression tester thathooks up to an air compressor to keep the valves pushed against their seats andbumped one causing the pressure to release and the stem to fall. I also heardof some people using a rubber band around the valve stem to keep them fromfalling.
I had a hard time compressing the springs to release theretainers on top of the valve stems as well, due to not having the correct SST.I made a spring compressor out of a pair of vise grips with a sheet metalduckbill fork spot welded to it. It was still a challenge for me, but solvedthe burning black smoke from the tailpipe issue. The van passed emissions in TNwithout issue.
FYI: This was my first ever valve stem seal replacement jobon any vehicle. If you have general automotive knowledge, patience, and canfollow instructions, the job should be no problem to complete.
Regards,
Blake