Re: johnson tilt and trim problem
The PTT unit is self bleeding... do not be concerned about that unless an air lock is encountered (electric motor works... nothing happens).
The PTT unit must be in the upright posiiton, such as it would be when the engine is underway. It will not function properly in any other position.
The PTT fluid refill procedure is: Both the tilt cylinder rod and the trim rams must be fully extended. Fill the reservoir to overflowing. Operate the PTT unit up/down a few times. Repeat the fill procedure until no more fluid can be added. Reinstall the reservoir fill screw plug after each fill procedure, otherwise the fluid will escape when the PTT unit is engaged.
When the unit is installed on the engine:
In the UP mode, the Trim Rams are engaged first via hydraulic pressure until the engine is moved back/up a full 15 degrees, after which hydraulic pressure is applied to the bottom of the Tilt Cylinder.
In the DOWN mode, The Tilt Cylinder rod moves first BUT NOT via hydraulic pressure. Rather it lowers due to the weight of the engine forcing it down via geavity. Should the steer tube nuts be too tight OR corrosion exists at the steering tube which would cause a binding effect on the swivel/steering bracket... the Trim rams would pull in first, then hydraulic pressure would force the Tilt cylinder rod to lower.
When the unit is off the engine, sitting on the work bench:
In either mode, UP or DOWN, which moves first, the Tilt Cylinder Rod or the Trim Rams, is a toss up UNLESS you hold downward pressure on the Tilt Rod.