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1978 Mercury Black Max 150 tilt and trim conversion

Bowhunter3303

New member
i have a 1978 mercury black max 150 that had a 12 pin connection with a tilt and trump pump with a reverse lock solenoid. I have converted the 12 pin to a 8 pin. I got a new 3 wire tilt trim pump so i would be able to use trim with this newer boat i have the motor on. I've hooked both hoses up from motor to pump. The 3 wires were blue green and red. I only needed blue and green for the trim to activate.
With all that said i cannot get the trim to work. Up or down pump makes noise like its working but nothing happens. Ive tried just about everything i can think of for purging air out. But still no movement. Please help. Thank you

This is the pump i purchased off ebay

New Tilt Trim Motor Mercruiser w/ Reservoir, Solenoid, Pump, Side Hull Mount
 
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