Prop shaft repair

[bullet255]

I’ve got a 1.25 shaft that has the seal grove cut into it from the seal. Can anyone tell me the correct size for a Speedo sleeve to install over the groves. Or recommend a repair method that will other than the sleeve. Thanks for any advice

[Carter Powell]

There is a process called spray welding. I would check welding business' and ask about this process where it is welded and then turned back down. It has been done for many years.

Best wishes, Carter Powell

[LakeFever]

Speedy sleeve works. I dont know where my buddy got his but he had the exact same issue this summer. The sleeve was a fast effective repair he put a lot of miles on after the sleeve with no issue

[wolfgangb]

hardchroming works for propshafts and driveshafts: grind, chrome, grind again to size and polish. The cold process will not affect the grain structure of the underlying material, and is not as iffy as installing speedy sleeve.
Rgds Wolfgang (South Africa)

[David - WI]

I think now most industrial shaft repair is done using laser welding (laser cladding)... https://www.ame.com/laser-welding-services

[bullet255]

I’d really like to repair it without having to pull the shaft out. I was
hoping someone here could tell me the size sleeve it needs. This lower will be a backup unit for me.
I don’t have a way to preciously measure the shaft so that I can order a sleeve. Any help with sizing would be awesome.
Thanks for the suggestions,

[108]

your not going to be able to pull the carrier without cutting off the sleeve after installation.

[MattGreen]

There is a process called spray welding. I would check welding business' and ask about this process where it is welded and then turned back down. It has been done for many years.

Best wishes, Carter Powell

Carter is giving good advice here. Thermal spray metallizing (TSM) is a well-recognized way to repair shafts that have worn a bit off spec/seal/bearing surface damage but are structurally OK. There's a few different processes, it has been around for decades. Because you can spray "better" alloys than what the shaft was made with originally, a repair can in some ways be better than the original surface. Machine shops are the place to go as opposed to welding shops (this technically is not a welding process and would normally be done while the shaft is chucked in the lathe, and then cut to size soon after).

I think MCC in California does this for propshafts actually, although not listed on their website specifically: https://marinecrankshaftinc.com/shop

Matt

[LakeFever]

if it was mine I’d do the speedi sleeve and go. Cheap, fast, easy, works. My thinking is if the shaft is that worn I’d want to freshen the entire unit if I pulled it apart. In which case I’d probably weld the shaft or replace it. Perhaps even replace the entire lower but this circles me back to the sensibility of trying the Speedi sleeve first

[bullet255]

if it was mine I’d do the speedi sleeve and go. Cheap, fast, easy, works. My thinking is if the shaft is that worn I’d want to freshen the entire unit if I pulled it apart. In which case I’d probably weld the shaft or replace it. Perhaps even replace the entire lower but this circles me back to the sensibility of trying the Speedi sleeve first

Speedo sleeve is the repair that I am wanting to do, I just need someone who knows the size of the sleeve that I need to use. I understand that there is a more permanent solution that could be done but this lower will only be used when I have issues with my fat shaft unit. (Need a size please)

[LakeFever]

What’s the motor and lower?

[skialot2]

SKF makes Speedy Sleeve. Measure it and try to use their product selector.


SKF Product select

[bullet255]

What’s the motor and lower?

2007 250 xs opti, prop shaft measure Roughly 1.25” it’s a verado style lower not a Torquemaster. Previous owner installed it it’s not the original lower that would have came on this motor. Thanks

[LakeFever]

I don’t know the exact size or have one of those lowers to measure but hopefully someone else here can chime in with the shaft diameter