What size is a Mercruiser prop nut?

Asked by: Andrea Lewis

1-7/16″1-7/16″ fits Mercruiser Bravo II sterndrives.

What size nut is on Mercury prop?

1 1/16″

Compatible with any outboard or outdrive that uses a 1 1/16″ prop nut.

What size is the prop nut on Alpha One?

Alpha One & Bravo One Propeller Nut with Aluminum Anode (809664A1)

What size is a prop shaft nut?

Shaft Size: 0.875″ | Full & Jam Nut Thread Size: 5/8″ – 11 | Keystock 3/16″ | Cot..

How do you remove a boat prop nut?

Get this use the needle nose pliers. And straighten in one end and then the next of the cotter pin. And then take the head of it and pull it right out.

How do I remove a Mercruiser prop?

And from here you can try your thin flat head screwdriver. And this little locking ring here has several tabs or teeth on them. And they lock in or bend into little slots on the internal.

How tight should the propeller nut be?

Proper installation begins by installing the half nut first and tightening it just snug enough to “preload” the half nut onto the shaft against the prop hub. Tight but not with all your weight on it.

Is prop nut left hand thread?

Prop nuts are basically M5 nylon nuts. In hardware stores, they are refereed to as right handed and left handed thread as opposed to CW and CCW.

Are prop Nuts reverse thread?

Most all prop nuts in the US are RH thread and go on righty tighty, and come off lefty loosey..

How do I remove an inboard prop?

So this is the c-clamp prop puller. So it actually takes the prop that's currently on the boat off you can buy this separately. If you don't want or need the weekend saver the tools that are included.

How do you remove a prop without a prop puller?

So gonna take your punch. And you're gonna put it on the back end of the prop like that and hit it with a hammer be careful to not hit the actual blade of the prop as that could possibly ruin.

Are propellers screws?

A propeller (colloquially often called a screw if on a ship or an airscrew if on an aircraft), is a device with a rotating hub and radiating blades that are set at a pitch to form a helical spiral which, when rotated, exerts linear thrust upon a working fluid such as water or air.

How do you remove a prop shaft?

Once you get all the bolts. Out you want to separate the couplers. This is a double tapered drive shaft so there's a retaining nut inside the coupler holding it to the drive shaft.

How do you remove a mercury prop shaft?

This requires a 1/2 inch ratchet. However the nut was only hand tight on the classroom case utilizing a bearing or gear puller the bearing carrier is removed from the gear.

How hard is it to change a prop shaft?

Changing a drive shaft is actually a simple task that a home mechanic can undertake without too much trepidation. It’s just a case of being thorough, being safe, and of course having your trusty Haynes Manual to hand.

How do you remove a propeller shaft coupling?

Okay you're going to use two wrenches. Once the puller is installed. The first to hold the pores of steady. The other to turn the press bolt in pushing the prop shaft out.

How do you remove the prop shaft on a Mercury outboard motor?

So we can drop the pinion gear down. And slide the drive shaft. Up. You can get a spanner on to that pinion gear.

How do I remove a tapered shaft coupling?

If you have a socket set, you can put a small socket between the coupling on the shaft and the one on the transmission, then squeeze them together with 2 of the coupling bolts. Then repeat the process with a longer socket. This should push the shaft out of the coupling.

How do you remove a motor coupling?

Use a slot screwdriver to release the metal mounting clips that secure the drain pump to the front of the drive motor. Pull the drain pump forward and release it from the drive motor shaft.

How do you remove a stuck coupled coupling?

Re: Removing a Stuck Coupling



If you can get the shaft out put it into a hydraulic press and push it out. Heat and cooling will all help too. You could mount the shaft vertically between two large wooden blocks and hammer it out with a sledge hammer protected by hardwood or copper dolly.

How do you remove a coupling hub?

thoroughly cleaned, spread a thin layer of mechanic’s blue on the shaft and push the hub snugly. While applying a light axial pressure, slightly rotate the coupling hub, and back up to the original position. Carefully remove the hub and check the bore for contact, by the amount of colored area.

What is motor coupling?

Coupling is a component used to connect a drive shaft and a driven part, for example, a motor shaft and a ball screw for the purpose of transmitting the torque. Also, Coupling introduces mechanical flexibility providing misalignment for the shafts.

What does a coupling look like?

Another kind of coupling is the steel grit coupling. It's two halves are connected with a continuous grid of flexible steel which locks around the center of the coupling.

What does a propshaft coupling do?

A coupling is a component which joins two shafts and transfers torque from a driven shaft (driving force) to a driven shaft component. An example of this is a propeller – the motor shaft drives a coupling, which is then attached to the propeller blades – and thus the motor can turn the blades.