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  1. R

    Trim/Tilt Pump replacement - Mercuiser 140hp

    I have a 1978 Seaswirl with a 140hp mercuiser motor, 4 cyl. Appears my trim motor may be shot. I bought the boat last month knowing it needed some repair. I found they had the trim selenoid (single selenoid system) was wired wrong and the selenoid was bad. I replaced the selenoid and wired per...
  2. R

    Mercruiser 140 Trim Pump Selenoid Wiring

    I recently bought a 78 Seawirl with a Mercruiser 140 hp stern drive. Having problems with the Trim Pump. Appears the previous owner messed up the wiring and there was a dead short, not to metion the selenoid is bad. Can anyone tell me the correct wiring? I have ordered a repair manual and...
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