Originally Posted by I-RV
Well, that is not it. I loosened the two bolts attaching the piston end to the slide body. Lowered the piston about 3/16". The timing shaft now does not contact the piston and there is clearance between the coupler and floor.
Slide still rumbles on the way out; about half way
I had heard that the piston can interfere with the timing shaft and bend one or the other if they don't have any clearance. I need to crawl under mine and look. It may be useful to have the DW run the slide in an out a bit whist I look it over?
On mine, besides the rumbling, I also hear noises like metal on metal scraping.