Just acquired a well used 2812523bve. Belt was shot. When I removed the black plastic cover the entire area under the cover was jamb packed with grass clippings. Around all the pullies, springs and such. Packed together so hard I had to use a screw driver to break them up. Is that normal? Hard to believe if so. Maybe I’m missing something, a diverter or the like, to prevent that? Also the blade engagement arm will not go far enough forward to correctly engage in the notch where it should lock in when pressing down the pedal that locks it there. This is the 2 part assembly with the flip handle on the top and the top flip handle hits the blade engagement pedal before the metal lower arm goes into the notch. From the look of the lower arm this was a long standing issue. The seller stated it would sometimes drop out while in use. I can see why lol. Anyway, don’t see an adjustment for this. Do I need a new blade engagement arm? Maybe an issue with the upped flip part? Thanks.