My Dad bought me a 3,000 psi pressure washer at an auction for $25.00 however the engine seemed to be stuck. Today after pulling the pump off, the head, and the engine block side, I found that this motor must have been sitting awhile with water trapped in it on top of the piston. After soaking the cylinder and piston with Marvel Mystery Oil for two weeks, I finally got the piston to break loose. However, due to the rust ring, I can only get the piston to travel about 3/4 of it's full travel. My question is, can I just remove the rust ring and hope that I can get full travel in the piston without any issues, or will removing the rust ring eventually cause damage to the piston rings and cause possible internal damage down the road?
If the rust can be safely removed, what are the recommendations that I should use in removing it? The rust ring build up is thick enough to actually stop the top of the piston, not just the rings. So keep that in mind when giving your thoughts or ideas.
I appreciate the help. Here are some pictures if it will help in determining how bad or how minimal the rust ring is:
The Valve Springs and Rockers:
The Head and Valve Tops:
Edited by johndeereelfman, May 14, 2017 - 06:34 PM.