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Old 11-08-2019, 11:28 AM   #1
Deerfeeder
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Default Help !! Trolling Motor clamp screws frozen

I have a clamp on Great White 24 volt trolling
motor that has been on my boat for a year. The two screws that hold it on are frozen. I have used WD 40 and break free lubricants to help break them loose with zero success. Threads are not rusty one bit. Any other ideas to try would be greatly appreciated.

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Old 11-08-2019, 11:31 AM   #2
BrandonA
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You might try some of that corrosion stuff you spray on battery post's
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Old 11-08-2019, 11:32 AM   #3
mpotts
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did they use Locktite??
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Old 11-08-2019, 11:52 AM   #4
Deerfeeder
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No. I did not use loctite.

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Old 11-08-2019, 12:00 PM   #5
coach2
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Try lifting the foot. It might just be in a bind. and unscrew.
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Old 11-08-2019, 12:01 PM   #6
chris1911
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can you put some heat on them?
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Old 11-08-2019, 12:12 PM   #7
Deerfeeder
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Quote:
Originally Posted by coach2 View Post
Try lifting the foot. It might just be in a bind. and unscrew.
I was able to work the whole trolling motor back and forth and got it off the mounting bracket. So it is not in any kind of bind. the two screws are just seized tight
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Old 11-08-2019, 12:14 PM   #8
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Quote:
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can you put some heat on them?
The bracket seems to be cast aluminum. Did not know if it would stand putting any heat to it.
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Old 11-08-2019, 12:14 PM   #9
Aggie PhD
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Put some PB blaster on it and let is soak. Reapply a couple times if necessary
then try to loosen
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Old 11-08-2019, 12:14 PM   #10
Rick
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bigger hammer
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Old 11-08-2019, 12:18 PM   #11
PEC
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Kroil
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Old 11-08-2019, 12:18 PM   #12
Burnadell
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Quote:
Originally Posted by chris1911 View Post
can you put some heat on them?
Quote:
Originally Posted by Deerfeeder View Post
The bracket seems to be cast aluminum. Did not know if it would stand putting any heat to it.
I don't think a little heat would hurt it. I would try this.
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Old 11-08-2019, 12:22 PM   #13
Deerfeeder
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Quote:
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bigger hammer
Afraid the Cast aluminum bracket would break. lol
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Old 11-08-2019, 12:24 PM   #14
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Quote:
Originally Posted by Burnadell View Post
I don't think a little heat would hurt it. I would try this.
I have definitely been considering trying a little heat,

Wanted to get all the feedback I could, first
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Old 11-08-2019, 12:26 PM   #15
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Quote:
Originally Posted by Deerfeeder View Post
Afraid the Cast aluminum bracket would break. lol
Be careful with that cast. If you heat it use a propane torch so it doesn't get too hot.

Personally I would put PB blaster then heat the bolt with a propane torch. I wouldn't put heat on the bracket. As it cools apply PB blaster, and let it cool

Then try to loosen.

I gave up on WD-40 it doesn't seem to break stuff loose very well
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Old 11-08-2019, 12:26 PM   #16
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Heat, PB Blaster, etc
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Old 11-08-2019, 12:35 PM   #17
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Quote:
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Kroil
2nd kroil.
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Old 11-08-2019, 12:37 PM   #18
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You can heat the bolt with propane, then let it cool completely, before trying to remove it. Also, I have used impact drivers to free screws and bolts in aluminum, but you have to be very careful or an impact driver will shear the head off. Light taps on the driver will sometimes free it. Often, conventional penetrating fluids don't work well on aluminum.
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Old 11-08-2019, 12:51 PM   #19
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It sounds like there has been some galvanic corrosion in the threads between the stainless screws and aluminum brackets. Possibly a little spray cleaner with some ammonia (like 409) will dissolve the corrosion products, after heating them up slightly. I always keep stuff sprayed with Corrosion-X or similar to prevent this.
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Old 11-08-2019, 12:54 PM   #20
youngSLY88
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Turn them the correct way
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Old 11-08-2019, 01:31 PM   #21
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Quote:
Originally Posted by Blank View Post
It sounds like there has been some galvanic corrosion in the threads between the stainless screws and aluminum brackets. Possibly a little spray cleaner with some ammonia (like 409) will dissolve the corrosion products, after heating them up slightly. I always keep stuff sprayed with Corrosion-X or similar to prevent this.
This
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Old 11-08-2019, 01:52 PM   #22
Dugie
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Quote:
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Turn them the correct way
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Old 11-08-2019, 02:19 PM   #23
Reaper87
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Heat the bolts and let the heat travel through the bracket. Sounds like the aluminum has oxidized and corroded.
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Old 11-12-2019, 10:07 AM   #24
Deerfeeder
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Some heat to the aluminum bracket was successful. Thanks all for the help.
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Old 11-12-2019, 10:18 AM   #25
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Quote:
Originally Posted by Deerfeeder View Post
Some heat to the aluminum bracket was successful. Thanks all for the help.


Good deal. I was about to say heat the bracket not the bolt because the bracket is what you want to expand to loosen the connection.

This will happen repeatedly so I run my screws in/out and lube them 2x per year.
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