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Old 12-10-2019, 08:56 AM   #1
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Propeller and puller needed

Can anyone recommend a prop puller that can be used under water? I have a 1-1/2" shaft with a 3 blade 20" prop.

Does anyone have a 20 LH 12 pitch for sale? Hard to find little buggers!
I have a bronze Columbia but would entertain others.
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Old 12-10-2019, 10:19 AM   #2
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I don't know anything special for under water use. Some prop shops will lend pullers if you buy props from them.

Divers can often change props and have their own tools.
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Old 12-10-2019, 10:56 AM   #3
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Harbor Freight sells a large hydraulic three leg gear puller that I modified (for extra reach). Worked well for pulling the two 24" props on 2" shafts on our OA. The rudders on our boat are offset just enough to fit the barrels of the hydraulic cylinder along side. The boat was on the hard, so I added a little heat to the hubs. Kept the nuts about one turn from the hub for when they popped loose with a loud "ping". You might check if that unit would fit without dropping the rudders. Very inexpensive. Added cost was having a machine shop drill extra holes in the hook arms so they'd reach the forward edge of the hubs. Worked for me....
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Old 12-10-2019, 10:57 AM   #4
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Iím not an expert, but I have removed our larger props easily with this.
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Old 12-10-2019, 11:02 AM   #5
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Any prop puller will work underwater. Wash, dry and spray Boeshield on it when done.
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Old 12-10-2019, 11:20 AM   #6
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Quote:
Originally Posted by cdsailor View Post
Iím not an expert, but I have removed our larger props easily with this.
Attachment 97415
Do you have any idea who makes this puller or were I buy one?
I just found a line on a similar one out of Europe. May just have to bite the bullet and spend the money. Shipping is ridiculous!
Thanks
Tom
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Old 12-10-2019, 11:32 AM   #7
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Originally Posted by cdsailor View Post
Iím not an expert, but I have removed our larger props easily with this.
Attachment 97415
Yeah, this one is nice. Along the Algonic style, where you don't need a separate wrench to operate.
I'm usually upside down on this type of job, with scuba, feet on the hull. The more interesting part is dealing with tight prop nuts...
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Old 12-10-2019, 12:19 PM   #8
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A tip from my yard, leave the prop nut loosely on the shaft when you pull the prop so it doesn't pop right off the end of the shaft and drop into the deep. When it lets go of the taper on the shaft, it can jump quite a ways back, so be prepared for it.
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Old 12-10-2019, 12:40 PM   #9
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Iím also no YouTube sensation, but I did record our prop removal. You know, because everyoneís an expert.

Hereís the puller in action:

https://youtu.be/U5Nf0-knQH4
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Old 12-10-2019, 12:50 PM   #10
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Originally Posted by cdsailor View Post
Iím not an expert, but I have removed our larger props easily with this.
Attachment 97415
That puller looks like it fits between the strut bearing housing and the prop hub. If so, it pushes the prop off the shaft versus pulling it. Very high loads would be transmitted to the transmission thrust bearing and housing, as well as the strut bracket (if applicable). Very bad idea (if it is indeed a spreader arrangement). Forces should be between the prop hub and the end of the shaft...a puller. not a pusher.
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Old 12-10-2019, 12:52 PM   #11
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Originally Posted by Rufus View Post
That puller looks like it fits between the strut bearing housing and the prop hub. If so, it pushes the prop off the shaft versus pulling it. Very high loads would be transmitted to the transmission thrust bearing and housing, as well as the strut bracket (if applicable). Very bad idea (if it is indeed a spreader arrangement). Forces should be between the prop hub and the end of the shaft...a puller. not a pusher.


You are mistaken. Forces with this puller are between the prop hub and the shaft.
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Old 12-10-2019, 12:53 PM   #12
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You are mistaken. Forces with this puller are between the prop hub and the shaft.


And it provides tremendous leverage. Its a great puller.
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Old 12-10-2019, 12:57 PM   #13
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Yes, you were posting your video while I was typing. When I saw your video. I attempted to delete my post, but you posted before I could hit the button.

That said, I have seen a yard use a hydraulic jaw type spreader between the prop hub and the strut....very bad news as it put a huge load on the strut before the lip on the jaws slipped off the prop hub and left a big gash in the bronze casting. The "service crew" subsequently went to Carver and borrowed a proper puller that spreads the load around most of the radius of the prop hub. It looks like this puller concentrates the load on a very small area on the hub....not good. I also doubt it would have had the leverage to budge the props on our boat without serious application of heat. The big concern I'd have for a larger prop is what appears to be a small contact surface on the hub radius.
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Old 12-10-2019, 01:04 PM   #14
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These guys sell some good pullers. Not cheap...

https://www.deepblueyachtsupply.com/

https://www.deepblueyachtsupply.com/boat-prop-pullers
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Old 12-10-2019, 01:20 PM   #15
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Exceeded 3 blades can make the puller choice difficult. Due to blade overlap at the hub. Need to watch that one when selecting.
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Old 12-10-2019, 01:43 PM   #16
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We have 4 blade props. I made a puller that works great. 2 plates and 4 bolts.
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Old 12-10-2019, 01:58 PM   #17
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Quote:
Originally Posted by cdsailor View Post
Iím not an expert, but I have removed our larger props easily with this.
Attachment 97415
This is the type puller we used at a major boat dealership on all sized boats up to 54'ers.


Literally hundreds of props every season with good results and no damage to the props.


It was the go to puller because it was fast. It didn't work all the time and occasionally a threaded rod or hydraulic puller was needed.
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Old 12-10-2019, 02:20 PM   #18
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I made a prop puller almost identical to Comodave. I did put a set screw right in the middle of the outside plate. This fit into the dimple on the end of the shaft and kept the plate centered. It was easy and cheap to make and worked really well.

Probably have to make a triangular one for a three blade prop.
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Old 12-10-2019, 02:30 PM   #19
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We have 4 blade props. I made a puller that works great. 2 plates and 4 bolts.
...that's a proper puller...can't cost all that much for a shop to fabricate.
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Old 12-10-2019, 03:00 PM   #20
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Everybody wants to know where to buy things in a store.

Nice to see there are some independent guys here.
I didn’t make the whole thing like some admirable guys did. But I didn’t go to the store either. I modified two pullers I had so it worked on the boat. I used the main screw that centers the shaft from another puller. As I recall there was a length problem w the other one. Had to take off the swiveling end grind a point.
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