Part # HA5471-2

The Cylinder Alignment Valve will allow for the periodic required realignment of two outboard motors or rudders that are not linked together with a mechanical tie bar. A standard helm and SeaStar hoses may be used on vessels not exceeding speeds of 55 mph. For vessels exceeding speeds of 55 mph a SeaStar Pro helm and Pro hoses must be used.

Side mount cylinders, such as SeaStar cylinder HC5370 can only be used with the valve by reorienting the port engine tilt tube, to allow for mounting cylinder on the port (left) side of the port engine. Cylinder rods must face each other.

The use of a standard helm under high speed (55 mph +) and a high load, ie: full throttle forward/reverse, may cause a vacuum in the liquid tie bar and cause engine/rudders to misalign, resulting in momentary loss of steering control. This will be less likely to occur if a SeaStar pro Helm Pump is used.

Referencing the cylinder alignment valve installation schematic.

• Fill helm with oil and attach filler device / container to helm
• Open valve
• Open bleed fitting no. 1 and pull cylinder shaft all the way out on fitting no. 1 side of cylinder
• Turn steering wheel clockwise until an air free stream of oil comes forth from bleed fitting no. 1

Do not open bleed screw with engines/ boat running. Loss of steering will result.

Do not allow shaft to move back into cylinder. Do not use a wrench to hold shaft.

• Close bleed fitting no. 1
• Open bleed fitting no. 2 and pull cylinder shaft all the way out on fitting no. 2 side of cylinder
• Turn steering wheel counter-clockwise until an air free stream of oil comes forth from bleed fitting no. 2, then close bleed fitting no. 2
• Open bleed fitting no. 3 and pull cylinder shaft all the way out on fitting no. 3 side of cylinder
• Turn steering wheel counter-clockwise until an air free stream of oil comes forth from bleed fitting no. 3, then close bleed fitting no. 3
• Open bleed fitting no. 4 and pull cylinder shaft all the way out on fitting no. 4 side of cylinder
• Turn steering wheel counter-clockwise until an air free stream of oil comes forth from bleed fitting no. 4, then close bleed fitting no. 4
• Turn steering wheel back and forth from hardover to hardover a couple of times. Align cylinders by pulling cylinder rod all the way out
  on the same side of each cylinder and close valve

Engines toed outwards: Props too far apart

Front Mount Cylinder

Side Mount Cylinder

1. Turn the wheel hard over to Starboard. (Both cylinders move; cylinder B reaches hard over first)
2. Open the valve
3. Continue to turn the wheel hard over to Starboard. (Only cylinder A moves and reaches hard over)
4. Close the valve

Front Mount Cylinder

Side Mount Cylinder

1. Turn the wheel hard over to Port. (Both cylinders move; cylinder B reaches hard over first)
2. Open the valve
3. Continue to turn the wheel hard over to Port. (Only cylinder A moves and reaches hard over)
4. Close the valve