Mercury Mariner Service Manual 6, 8, 9.9 210CC Sailpower, Page 106Get this manual
10Remove plate (a)gasket (b)"0Ring (c)bolt and washer (d)11 Replace plate if grooved 15Remove cl ip (a) and shift cam (b) from shift shaftReplace shift cam if worn
16Pull shift shaft (a) out of water pump base17Remove screw (b); pull water tube (c) from base