2003+ Mercury Mariner 225 HP EFI 4-Stroke Service Manual, Page 328Get this manual

2003+ Mercury Mariner 225 HP EFI 4-Stroke Service Manual, Page 328

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CYLINDER HEAD
NOTE: Inspect the timing chain tensioner every 400 hours of operationa -Plunger extended limit Timing Chain Tensioner Wear limit 1.0 mm (0.004 in) from standard

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