merc 302 v8 i/o shake,rattle, but no go.. need help!
symptoms: when starting out from idle upon opening throttle, boat
vibrates and rattles but fails to produce adequate thrust. Prop turns but only generates minimal movement through the water. Engine revs at high rpms but fails to accelerate through the water. Attempted Fixes: rebuilt carberator, flushed the fuel, replaced fuel filter, replaced the batteries, replaced the starter, replaced 12v coil, replaced the ring gear on fly wheel, replaced the coupler, even replaced the spark plugs. Note: when replacing the gear on the fly wheel, engine was pulled and replaced, without removing the stern drive Note: Boat was purchased roughly 1 month ago with rebuilt engine and currently has 62 hours on it. Possible Diagnosis: could be ignition could be drive unit slippage prop cavitation / ventilation Still searching for an answer. Any help that could be provided would be greately appreciated. |
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