Refill hydraulic oil for trim on 1989 Astro Quickfire

PeteyWheat77

Cadet
Joined
Dec 28, 2009
Messages
6
I have a 1989 Astro Quickfire with a 150 Black Max Mercury. I cannot figure how to refill the oil for the trim pump.
 

Chris1956

Supreme Mariner
Joined
Mar 25, 2004
Messages
28,073
What year is the motor?

If the PTT unit is between the transom brackets, tilt the motor all the way up to expose the fill port. Fill it to overflowing and replace the fill cap and cycle it down and up to bleed. Repeat a few times until there are no bubbles in the PTT fluid.
 

Chris1956

Supreme Mariner
Joined
Mar 25, 2004
Messages
28,073
That motor shows 3 different power trim units. If the unit is mounted in the boat, trim the motor up and find the SS fill screw on the pump in the boat and fill to overflow.

PTT units are usually filled with Dextron II ATF, but also could have 5W-30 motor oil as well, so see what you already have in it.
 
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