MST MST Steering & Control Systems

Question 1

What is the primary cause of excessive steering wheel play in a rack-and-pinion hydraulic steering system?

Accepted Answer

Worn or damaged steering cable or low hydraulic fluid level

Answer

Too much engine tilt angle

Answer

Corroded trim tabs

Answer

A seized throttle cable

Question 2

When bleeding a hydraulic steering system, what is the correct procedure?

Accepted Answer

Turn the helm lock-to-lock multiple times while adding fluid at the reservoir until no air bubbles appear

Answer

Run the engine at full throttle to build pressure

Answer

Remove the cylinder bleeder screw and fill from the cylinder

Answer

Add fluid only when the engine is running at idle

Question 3

What type of cable is used in most mechanical single-station outboard steering systems?

Accepted Answer

Push-pull rotary steering cable

Answer

Stainless wire rope

Answer

Bowden cable

Answer

Rigid rod linkage

Question 4

What ABYC standard covers steering system installations on recreational boats?

Accepted Answer

ABYC P-17

Answer

ABYC H-24

Answer

ABYC E-11

Answer

ABYC A-3

Question 5

A twin-engine boat with hydraulic steering pulls strongly to one side at rest but steers normally under power. The most likely cause is:

Accepted Answer

Unequal engine trim angle between the two engines

Answer

Low hydraulic fluid in the port side cylinder

Answer

A seized port engine throttle cable

Answer

Worn steering wheel hub

Question 6

What is the purpose of the tilt tube on an outboard engine steering system?

Accepted Answer

To provide a pivot point for the steering cable attachment to the outboard's swivel bracket

Answer

To allow the engine to tilt up for shallow water

Answer

To house the trim motor wiring

Answer

To attach the engine to the transom