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noj

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Posts: 19
Reply with quote  #1 
Tried to Mount my new rogue prop today. Should be a 5 min operation.

It was NOT. The old alu prop is completely stuck.
Tried several things like caramba, heat, light knocking, and other stuff.

Ended up making a puller. See picture.

Well the puller worked. Something moved.
It was the propeller but NOT the hub. That was still stuck on the shaft.

I stopped and pressed back the prop in place.

What do i do now ?

Pull of the prop without hub.
Try to pull of the hub afterwards ? Which puller do i need for that ?

The motor was serviced last autum. Is it NOT part of a service to take the prop of and inspect the shaft and regrease ?
NOT to blame anyone. I should have done that myself every year. I did NOT .

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steelhead

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Reply with quote  #2 
Have you tried sealing the prop exhaust holes with rags, soak the rags and end of hub and shaft with PB Blaster overnight.

Pull the prop off and cut the hub off with a metal cutting blade on a reciprocating saw, angle grinder or oscillating multi tool.
Leave 1/16>1/32" metal, do not cut into prop shaft.  Split/fracture with a cold chisel and 3lb sledge, support shaft from underneath with heavy block of hardwood.

Or, if you're handy with a welder etc DIYer>
olypopper

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Reply with quote  #3 
I have to cut the hubs off frequently.  Customers that don't remove the prop at least annually and grease the splines or have never applied grease at all will find out the hard way about saltwater corrosion.  I recommend a die grinder and a good sharp cold chisel.  Grind a groove parallel to the propshaft and use the chisel to break the hub open.  It's not fun but that is the easiest way I've found to removed corroded on prop hubs.  
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noj

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Reply with quote  #4 
Created a new puller.

Am I on the right path here ... with the hub cutting?
Do I need to cut the whole hub length or only the outer 5-7 cm where it’s fixed to the shaft ?

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neo (https://www.etecownersgroup.com/profile/1513164)

steelhead

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Reply with quote  #5 
Sometimes they release with only cutting partial length.
That one is bronze, creates lots of that green/blue copper swollen corrosion, worse than super glue.

Forgot my favorite penetrant that works when the others don't.

Tilt motor to max.
Spray hub to prop shaft gap, wrap with cotton rag, soak rag.
Soak overnight.
If you peel all the rubber off, then can heat bronze with propane or MAPP torch.  Repeat soak

http://www.kanolabs.com/penLub.html
seahorse

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Reply with quote  #6 
Use a heavy duty air hammer with a chisel bit. You normally do not have to split the hub but  hold the chisel at a shallow angle to push the hub off the splines. Tilting the motor up and soaking with penetrating oil overnight is a helpful hint.
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noj

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Reply with quote  #7 
Im still working on it.

I thought it was an aluminum hub since it’s very blank when I cut it. Maybe it’s aluminum bronze. It’s very easy to cut with my fein multicutter.

However it’s very stuck,

Thought about applying some controlled amount of acid in the cuts, to dissolve the hub corrosion. The shaft should be immune due to the reactive series, and stainless steel placing here relative to alu and hydrogen.

Anyone tried that ?

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fishrride

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Reply with quote  #8 
After reading this thread I got to thinking about mine and when was the last time I greased it. When I checked it everything was fine and it still had some grease on it but I added some more. Behind the washer was some fishing line though. I'm glad I read this because if I hadn't checked it, it could have cause a lot of problems later.
noj

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Reply with quote  #9 
Finally it came off. A lot of cutting. Some knocking. And patience...

Now I seem to mis some fittings for mounting the rogue. I will start another thread.

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Tee2Sea

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Reply with quote  #10 
Saw your other post, your not done yet.  The thrust washer is clearly shown on image 2 & 3.  Hopefully that come off easy.
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115 HO  mfg 2018
A115SHLAFL    05530167
2003 Hydra Sports 180CC  TP13.25 17 Mach4
noj

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Reply with quote  #11 
I see, so that one goes off, and put a new one on...
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