1999 Mercruiser HI-Performance GM 377 EFI Engine Service Manual, Page 72Get this manual

1999 Mercruiser HI-Performance GM 377 EFI Engine Service Manual, Page 72

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TROUBLESHOOTING
Cause Loose hose connections Damaged hose Oil leaking from top of pump Cylinder piston rod seal Faulty seals in valve Cracked or porous metal parts Special Information Tighten fi