Mumf
Aluminum
- Joined
- Apr 11, 2009
- Location
- ontario canada
My knee was moving approx 6 thou when i went from raising it to lowering it. I read many posts and tried to adjust the gibb. I could not get it below 3 thou when it started sticking and thus bumping on the way down. I removed the gibb. One side is clear metal but the side to the machine casting has what looks like a rubber coating. It is pretty flexible and soft like rubber. It also looks like it has been scraped. i do not want to rebuild the main body casting, so i am thinking of just putting it back. Anyone familiar with this type of coating?