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Setting up ezloader trailer for 17' mod-v tinny

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Setting up ezloader trailer for 17' mod-v tinny

Old 03-23-2019, 11:39 AM
  #1  
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Default Setting up ezloader trailer for 17' mod-v tinny

Boat is a new Alweld 1756 Marsh-VV cc, with 50 hp Yamaha, and it came on an Ezloader "adjustable" 1650 trailer.

It is a simple single-axle trailer with 2 bunks, one keel roller, and a bow roller/winch. One bunk is twisted inward because it isn't lined up with strakes perfectly (this boat has strakes on the hull that a 2x4 just fits between width-wise), and also the boat hits the bow roller a little to the right (starboard). The keel roller has too much weight on it as the rubber is distorted and the keel has some rude marks already.

I replaced the black rollers with new Stoltz rollers, and attempted to line up the bunks. I used a floor jack and blocks under the transom to lift the boat off the bunks. Also used a jack and block in the front to get the weight off the keel and bow rollers to adjust them. Now I can wrench on the brackets, and I've done so twice but it still isn't quite right.

The dealer (180 miles away) did a poor job setting up the trailer, and I need to fix it. Not going back there because I don't have confidence in them any more. I have a boat ramp 15 minutes away for adjusting and testing.


What are the steps, in order, for properly fitting this trailer to my boat? Can someone walk me thru the process and the proper order of adjustment?

I presume the process is:

1. adjust the bunks first so they fall in between two strakes, and when the boat is on them, they sit flat between the strakes, and centered on the trailer. Adjust front-to-back so they go all the way under transom.

2. Set up the bow roller/winch assembly (u-bolts) front-to-back, and up/down, so bow of boat fits to bow roller when cranked up.

3. Adjust keel roller so it just touches or has a little pressure when the bow is cranked up? How much weight is supposed to be on the keel roller when the boat is cranked up to the bow roller? I thought this roller is only supposed to touch the keel when launching, when the transom is floating?


Sound about right? I'm getting frustrated getting these 2x4 bunks to line up between the strakes so one doesn't twist. I had to take a break because I was about to start throwing stuff. LOL


I HAVE searched many many threads in this forum with "bunk" in the title the past couple days, but have not found the knowledge I seek.

TIA and glad to be here.
jawjatek is offline  
Old 03-23-2019, 02:32 PM
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Go the other way, you want the weight on the rollers first then lift the bunks up till they touch to stop it rocking. Keel is strongest part of the hull whereas the hull under the bunks can flex if overloaded. Its amazing how badly dealers do these adjustments and really satisfying when you get it right and the trailer just works. Good luck with it.
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Old 03-23-2019, 04:38 PM
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There are no rollers except the single keel stop roller up front. You can't put the weight on the rollers.
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Old 03-24-2019, 03:59 AM
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Sorry my bad, your OP mentioned a keel roller and a bow stop? Maybe some photos if possible?
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Old 03-24-2019, 04:43 AM
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Post a few photos, you will get a better response.
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