The monovalve insert on my '83 300D is supposed to have three washers (A small thin one, a wavy sping steel one in the middle, and a larger diameter thicker one on top). Somewhere along the line I managed to lose the small thin washer and, since I'm in the process of replacing the monovalve insert for the third time in less than 10 years, I'm wondering if the absence of this other washer causes undue stress on the neoprene diaphragm and thus premature failures? So if anyone out there may have an extra one of these small washers, it would be greatly apprecaited as I haven't been able to locate this at a specialized fastener place I frequent. TIA. G. M. Brown Rochester, NY
