Change to Fat Shaft

[SHADOW]

Went to the lake today and had the misfortune of breaking the small prop shaft on my Merc 280 Sportmaster and left a freshly DAH worked 29 SRX at the bottom of the lake! :mad: Guess I'll have no choice but to go to a fat shaft since small shafts are so rare. Any parts besides the prop shaft need to be changed to go to the fat shaft? Anyone have a 2.5 Sportmaster prop shaft they want to sell? Thanks.

[Varmint]

A 4 hole CLE 1 1/4 late style propshaft is easier to find with small splines. Fatshaft is same dimensions inside the carrier

[SHADOW]

A 4 hole CLE 1 1/4 late style propshaft is easier to find with small splines. Fatshaft is same dimensions inside the carrier

Wouldn't happen to know the part number would you? I'm assuming it would work in the sportmaster?

[Dave Strong]

1 1/4" small shaft has been NLA for years. All you need is the fat shaft, seal kit, retainer lock. Recommend a new retainer nut as well.

Dave

[SHADOW]

1 1/4" small shaft has been NLA for years. All you need is the fat shaft, seal kit, retainer lock. Recommend a new retainer nut as well.

Dave

Thanks Dave!

[friendbroker]

do you know if I can get a new pres-in hubs for the fat shaft for my 2 chopper props?

[Dave Strong]

do you know if I can get a new pres-in hubs for the fat shaft for my 2 chopper props?

Have to be weld in.

Dave

[PanRonnie]

maybe ?
https://www.ptpropeller.com/content-categories/cat-1356_555/mercury_mercuriser.html

[friendbroker]

Have to be weld in.

Dave
thank you
next question where can I buy a hub ? weld in hub .
I tried HMShubs they dont have anything for fatshaft .

[Dave Strong]

Most the custom prop shops have them but not sure they sell them. Some more the hub out slightly larger and do final balance when done.

Dave

[friendbroker]

Most the custom prop shops have them but not sure they sell them. Some more the hub out slightly larger and do final balance when done.

Dave
thank you for your help I think you just explained to me that I'm going to be buying a new Prop :) no one around here does custom prop work and the cost of that custom work may exceed the cost of the new prop? thanks again

[Dave Strong]

Hoss Propellers charges $250. Betting most charge around that.

Dave

Dave

[Varmint]

thank you for your help I think you just explained to me that I'm going to be buying a new Prop :) no one around here does custom prop work and the cost of that custom work may exceed the cost of the new prop? thanks again

Call billy eaves or bblades,some choppers cant be converted to fat shaft,

[MUDSHARK]

Can you use a small prop shaft out of a stock 2.5 fishing motor lower on a sportmaster?

[Dave Strong]

Can you use a small prop shaft out of a stock 2.5 fishing motor lower on a sportmaster?

No, not unless you use a smallshaft carrier.

Dave

[friendbroker]

Can you use a small prop shaft out of a stock 2.5 fishing motor lower on a sportmaster?
awesome there are a few of those around are the gear sets really any diffrent they are twice the price to buy?

[Dave Strong]

awesome there are a few of those around are the gear sets really any diffrent they are twice the price to buy?

Yes

[friendbroker]

Yes

Thank you

[MUDSHARK]

As long as you have a small shaft sportmaster carrier bearing all the stock gear case internals should work. Or are you saying you disagree?

[Dave Strong]

As long as you have a small shaft sportmaster carrier bearing all the stock gear case internals should work. Or are you saying you disagree?

Need to be big bearing fishing motor stuff, small shaft carrier from sporty is 1 1/4" shaft fishing motor 1 3/16". Also need small carrier to have a drain so you can put oil in it.

Dave

[AlaskaStreamin]

I just bought a new fat shaft for my sporty due to some pitting. Pro Marine had PN- 840451.