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Old 25-09-2017, 12:44   #1
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How to get out JP3 rudder bearing

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This top flange looks like it's threaded into the body. I've removed the set screws, soaked with PB blaster and took a chisel and hammer to try and get it to spin....no luck. It's real close to fiberglass, so I don't want to heat it with a torch. Any ideas?
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Old 25-09-2017, 14:28   #2
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Re: How to get out JP3 rudder bearing

Some of the roller rudder bearings are epoxied into place. Check with the manufacturer for installation/removal procedure.
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Old 25-09-2017, 14:59   #3
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Re: How to get out JP3 rudder bearing

Sawzall
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Old 25-09-2017, 15:14   #4
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Re: How to get out JP3 rudder bearing

Pipe wrench on the edge of that flange. If the flange is important, the trusty sawzall will ruin it.
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Old 25-09-2017, 15:16   #5
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Re: How to get out JP3 rudder bearing

Quote:
Originally Posted by mrybas View Post
Attachment 156663

This top flange looks like it's threaded into the body. I've removed the set screws, soaked with PB blaster and took a chisel and hammer to try and get it to spin....no luck. It's real close to fiberglass, so I don't want to heat it with a torch. Any ideas?
Maybe hot air gun...
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Old 25-09-2017, 15:43   #6
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Re: How to get out JP3 rudder bearing

those two holes in the top of the flange look like they are meant for a pin wrench, and that kinda implies that it is screwed into the hull.

Jim
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Old 25-09-2017, 15:48   #7
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Re: How to get out JP3 rudder bearing

Typically these bearings have holes in their flanges for mounting and adjusting a compression-type rudder shaft seal.
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Old 26-09-2017, 05:00   #8
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Re: How to get out JP3 rudder bearing

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Originally Posted by Jim Cate View Post
those two holes in the top of the flange look like they are meant for a pin wrench, and that kinda implies that it is screwed into the hull.

Jim
The holes in the top of the flange had set screws in them, which I removed. I tired using a an adjustable style pin wrench used for removing fuel/water caps, but it was going to break before the flange budged.
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Old 26-09-2017, 09:08   #9
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Re: How to get out JP3 rudder bearing

Quote:
Originally Posted by mrybas View Post
Attachment 156663

This top flange looks like it's threaded into the body. I've removed the set screws, soaked with PB blaster and took a chisel and hammer to try and get it to spin....no luck. It's real close to fiberglass, so I don't want to heat it with a torch. Any ideas?
A blast of CO2 on the inside or pack it with ice inside.
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Old 26-09-2017, 13:01   #10
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Re: How to get out JP3 rudder bearing

Do a search on the JP3 website for drawings of the bearing. I have a different model which uses a self aligning plastic bearing. It was secured from the exterior by a plate with set screws etc. The top is glued in from memory and not removeable. My bearing was so stuck i had to drill/destroy the cover plate and drill/destroy the plastic bearing to remove and then wait 4 weeks for them to manufacture a new bearing. I dont know what grade of aluminium they use but it was almost as hard as stainless steel!

Good luck with that.

Andrew
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Old 06-10-2017, 03:48   #11
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Re: How to get out JP3 rudder bearing

Saws-all prevails again. Time to find some new rudder bearings!
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Old 06-10-2017, 14:36   #12
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Re: How to get out JP3 rudder bearing

Sawzall can be such a useful tool when delicate work is needed.
Check the removable, composite Jeffa bearings. No metal plus they are easy to inspect and clean.
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