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Old 06-19-2017, 03:52 PM   #1
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Default Problem with centering

Hey guys. First let me start off by saying that I have a 18ft century cc bay boat.

When I bought this boat it came with a single axle trailer. But I was in the market for a tandom axle because of the long hauls I make to go fishing..

i called around asking for prices, and came across a company that said they had what I was looking for.

Well the trailer ended up being made for a 21-22 ft boat. But the winch was moveable and could hold my boat. This trailer only has two 7 1/2ft bunks

But I'm having a problem when loading my boat..
Whenever I go to load on the trailer.. the little "ribs" on the hull of my boat catch the bunks on the trailer and will throw it off center every time no matter the depth of the trailer.

I was thinking about adding two bunks further inside the other two that will catch the lowest part of the hull and keep it centered. But I'm worried that those "ribs" will still catch the outer two bunks.

Then I started thinking about adding another cross member and adding two bunks inside the other two but further up on the trailer.. only problem with that is spending money when there could be another way..

My last though was moving the crossmember on the trailer back about 2 ft and cutting the originally two bunks down shorter. And adding two guide poles to keep me centered


Any ideas on how I can fix my centering issue? Besides the 3 options I have listed.

Thanks
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Old 06-19-2017, 03:59 PM   #2
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You should be able to slide,the bunks slightly together or further apart to catch the hull just right. They should be bracketed to the frame of the trailer somewhere to allow you to move them.
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Old 06-19-2017, 05:45 PM   #3
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I have a 22' Pathfinder on an Anerarrail trailer with two bunks forward and two main bunks aft.

It loads like a dream.
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Old 06-19-2017, 05:52 PM   #4
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X2 offset the bunks (if bolts not heavily rusted and frozen) or add either a keel roller, v step or add a rail to existing bunk to help (PT 2x4 w/ carpet)
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Old 06-19-2017, 05:58 PM   #5
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Quote:
Originally Posted by Thunderyacht View Post
You should be able to slide,the bunks slightly together or further apart to catch the hull just right. They should be bracketed to the frame of the trailer somewhere to allow you to move them.
I have adjusted together once already.. can't go to much further because of the bend in the cross member
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Old 06-19-2017, 06:25 PM   #6
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Photo?

Don't sink any more than fenders and try powering on.

Bunk design should self center unless there's something wrong.
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Old 06-19-2017, 06:31 PM   #7
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Photo?

Don't sink any more than fenders and try powering on.

Bunk design should self center unless there's something wrong.

I'll have to get pictures tomorrow. I think the bunks are to long for my boat. And the "ribs" on the front on the hull are catching the part of the bunks not submerged and throwing it off
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Old 06-19-2017, 06:32 PM   #8
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I have close to 2 ft of bunk space that has no contact with the hull of my boat
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Old 06-19-2017, 06:36 PM   #9
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Quote:
Originally Posted by pvt townley View Post
I'll have to get pictures tomorrow. I think the bunks are to long for my boat. And the "ribs" on the front on the hull are catching the part of the bunks not submerged and throwing it off
The bunks should catch the mid and back planing surface only.

That said the front should not be causing any ill effect.

Pertinent thread.

http://www.thehulltruth.com/trucks-t...ler-bunks.html
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Old 06-19-2017, 06:40 PM   #10
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Quote:
Originally Posted by trimnyc View Post
The bunks should catch the mid and back planing surface only.

That said the front should not be causing any ill effect.

Pertinent thread.

http://www.thehulltruth.com/trucks-t...ler-bunks.html
I'll take pictures tomorrow. And post them here.
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Old 06-19-2017, 07:53 PM   #11
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How much bunk is showing when you load your boat?
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Old 06-20-2017, 02:19 AM   #12
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I had the same issue with my boat. The original two bunks work OK but any sort of cross wind/current and I had a devil of a time getting it lined up with the winch post. I added two short bunks to catch the keel as I was loading and guide it towards the bow roller. It works great and while probably not needed does provide some additional support for the boat.
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Old 06-20-2017, 03:00 AM   #13
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Quote:
Originally Posted by joebuck2 View Post
I had the same issue with my boat. The original two bunks work OK but any sort of cross wind/current and I had a devil of a time getting it lined up with the winch post. I added two short bunks to catch the keel as I was loading and guide it towards the bow roller. It works great and while probably not needed does provide some additional support for the boat.
Good advice right there. 👍
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Old 06-20-2017, 07:05 AM   #14
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Quote:
Originally Posted by Brezinup View Post
How much bunk is showing when you load your boat?
Roughly about 2 ft. But no matter how deep of shallow I have it will not center
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Old 06-20-2017, 07:07 AM   #15
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Quote:
Originally Posted by joebuck2 View Post
I had the same issue with my boat. The original two bunks work OK but any sort of cross wind/current and I had a devil of a time getting it lined up with the winch post. I added two short bunks to catch the keel as I was loading and guide it towards the bow roller. It works great and while probably not needed does provide some additional support for the boat.
I thought about doing this. The only problem is I will have to order another cross member unless I was to attach the bunks to one of my axles
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Old 06-20-2017, 02:20 PM   #16
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Just looked and studied my trailer for a bit, and I still have some room for adjustment.. I'm going to adjust the bunks about 2 more inches in and it SHOULD work out
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