2003+ Mercury Mariner 225 HP EFI 4-Stroke Service Manual, Page 338Get this manual

2003+ Mercury Mariner 225 HP EFI 4-Stroke Service Manual, Page 338

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CYLINDER HEAD
a -Previous contact width -Specified contact width 6 If the valve seat contact area is too wide and situated in the center of the valve face, use 30 cutter to cut the top edge of t