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Unbolt and detach the water pump housing to access the impeller
Start the engine to confirm smooth operation
Reinstall the pump housing
followed by the correct matching rubber gasket
Exhaust Elbow Gasket – Fits MerCruiser 2.5L 3.0L V8 (Replaces 27-997771, Sierra 18-2833-9) 110-220HP Unbolt and detach the waterProduct Details This Exhaust Elbow Gasket creates a reliable seal between the exhaust manifold and riser on specific MerCruiser engines. It is designed for MerCruiser 2. 5L & 3. 0L I4 models (1993current) and pre 1982 GM V8 small block models, both of which utilize wet joint exhaust systems. This part is a direct interchange for MerCruiser part numbers 27 52076, 27 99777, 27 997771, 27 997772, and 27 99777B2, as well as aftermarket equivalents like
