How does a Bravo 3 prop work?

How does a Bravo 3 prop work?

The Bravo 3 utilizes an aluminum casing and two stainless steel propellers. When the stainless steel props are in close proximity to the aluminum housing in water an electrical current is formed between the two metals. Galvanic corrosion occurs when the weaker metal begins to lose molecules in the water.

How much is a Bravo 3 lower unit?

$ 4,374.00$ 3,752.00. Mercruiser Sterndrive Lower Unit, BRAVO 3, 1995-2019. Price includes free shipping. -Determine your outboard’s year and horsepower and select correct option.

What is the advantage of a Bravo 3 outdrive?

Bravo 3: MerCruiser’s Bravo 3 outdrive feature counter-rotating dual propellers that improve propulsion efficiency, speed, acceleration and handling on a boat. The two props are mounted in front of one another and turn in opposite directions eliminating wasted energy from the propeller wash.

What size is a Bravo 3 prop nut?

Bravo 3 Propeller Wrench designed specifically for Mercury Bravo 3 Drives. One wrench covers both prop nuts. One end fits the 1-7/16″ outside nut; the other end fits the huge 2-3/4″ inside nut.

What is the difference between Bravo 1 and Bravo 3?

Both are the same model from the same manufacturer. Both are the same price and have the same engine. The only difference is the drive. One has a Bravo One, the other, a Bravo Three, both made by Mercury.

How much does it cost to rebuild Bravo 3?

The rebuild is proceeding on the B-3 drive. The original quote for the repair to the drive was around $2000 including the new updated clutch/gear set that is in the upper part of the drive. Add to that the cost for a new vertical shaft at $600.

Whats better Bravo 1 or Bravo 3?

If you’re looking for a boat that will break 60 mph, either as is or after you make some planned modifications, a Bravo One is the way to go. The single propeller lends itself to performance applications better than the dual propellers of the Bravo Three.

How do I tell what gear ratio my Bravo 3 has?

You should be able to determine the gear ratio by putting the drive in gear and counting the number of input turns to turn the prop one revolution.

How much does a Mercruiser Bravo 3 cost?

$ 8,820.00$ 7,860.00. Mercruiser Bravo Three Sterndrive Complete Unit, 1995-2019, New & Re-manufactured. Price includes free shipping and mount hardware kit.

How much does a Bravo 3 outdrive cost?

$7,955.00
New 2023-PY Mercury BRAVO-3 CLASSIC (Early Design) Outdrive – $7,955.00 – PRO Boats.

How do you grease a Bravo 3 gimbal bearing?

The crosses and bearings on the sterndrive U-joint will need to be lubricated through the grease fittings. Apply Quicksilver U-joint and gimbal bearing grease from a typical hand-operated grease gun until a small amount of grease begins to push out. The sterndrive unit must be removed to grease these fittings.”

How do I know if my Mercruiser gimbal bearing is bad?

It’s usually a rumbling noise that gets worse when you turn the drive off dead center while in gear. Often turning in one direction will make the noise worse than turning in the other direction. The usual cause of gimbal bearing failure is water intrusion, which will screw up other stuff in there like the U-joints.

What does gimbal bearing do?

In maritime use, they are used to support of the delicate gyro-compass and to dampen the movement of deck-mounted machinery that is also susceptible to the movement of the ship due to sea conditions.

Can you run a boat with a bad gimbal bearing?

Often turning in one direction will make the noise worse than turning in the other direction. The usual cause of gimbal bearing failure is water intrusion, which will screw up other stuff in there like the U-joints. Not good to run it in that condition.

What does a bad gimbal bearing sound like?

Sounds like marbles, particularly when the drive is turned away from straight ahead. It can sound like a growling, like a wheel bearing and sound will change tilting up-down, right-left. There is a grease fitting on the right side of the transom housing but if it is making noise you are too late!