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Thread: Change to Fat Shaft
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04-03-2018, 03:37 PM #15000 RPM
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Change to Fat Shaft
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! 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.
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04-03-2018, 04:42 PM #26000 RPM
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A 4 hole CLE 1 1/4 late style propshaft is easier to find with small splines. Fatshaft is same dimensions inside the carrier
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04-03-2018, 04:53 PM #35000 RPM
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04-04-2018, 11:37 AM #4
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.
Dave1980 Cougar 19 tunnel,90 2.4L Bridgeport EFI in middle of restoration.
1988 BAJA Sunsport 186, 96 225 Pro Max
79 12' Auminum, 95 Merc 9.9
RIP Stu
"So many idiots, so few bullets"
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04-04-2018, 04:53 PM #55000 RPM
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03-18-2019, 07:33 PM #6Junior Member
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do you know if I can get a new pres-in hubs for the fat shaft for my 2 chopper props?
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03-18-2019, 07:47 PM #7
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03-19-2019, 06:59 AM #8
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03-19-2019, 09:05 AM #9Junior Member
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03-19-2019, 10:55 AM #10
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.
Dave1980 Cougar 19 tunnel,90 2.4L Bridgeport EFI in middle of restoration.
1988 BAJA Sunsport 186, 96 225 Pro Max
79 12' Auminum, 95 Merc 9.9
RIP Stu
"So many idiots, so few bullets"
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03-19-2019, 11:13 AM #11Junior Member
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03-19-2019, 11:31 AM #12
Hoss Propellers charges $250. Betting most charge around that.
Dave
Dave1980 Cougar 19 tunnel,90 2.4L Bridgeport EFI in middle of restoration.
1988 BAJA Sunsport 186, 96 225 Pro Max
79 12' Auminum, 95 Merc 9.9
RIP Stu
"So many idiots, so few bullets"
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03-19-2019, 05:47 PM #136000 RPM
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03-27-2019, 12:43 PM #14
Can you use a small prop shaft out of a stock 2.5 fishing motor lower on a sportmaster?
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03-27-2019, 12:59 PM #15
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