1987-1993 Mercury Mariner Outboards 70/75/80/90/100/115HP 3 and 4-cylinder Factory Service Manual, Page 148Get this manual

1987-1993 Mercury Mariner Outboards 70/75/80/90/100/115HP 3 and 4-cylinder Factory Service Manual, Page 148

Quality of the image is intentionally reduced!

3 Push check valve out of carrierIf nylon ball within check valve is stuck or carrier is charred, replace check valve andor carrier as requiredIMPORTANT: SINGLE HOLE side of check valve MUST FACE CRAN