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Old 04-20-2006, 04:45 PM
NORTHERN LIGHTS's Avatar
NORTHERN LIGHTS NORTHERN LIGHTS is offline
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Boat lift question

I just bought a new lift for my ps 197. The bunks on my trailer are 48' apart and the boat sits snug on the strakes. The another set of bunks start about halfway up the trailer to cradle the rest of the boat.
The bunks on the lift are 14' long. Should the bunks be placed at the 48" like the trailer or moved in on the flat part of the hull? If i move the bunks in it looks like much more of the bunks will be cradeling the bottom of the boat. Make sense? Any help would be great!!!
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Old 04-20-2006, 04:59 PM
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Evan Jones Evan Jones is offline
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I think mine were about 38" apart in the back on the '97 205 trailer. I made the lift bunks the same. The trailer has 1 piece bunks all the way to the front. So I guess I'd move them in. I have mine so they are just outside one of the strakes so as I slide the boat on the bunks in kind of self-centers.
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Old 04-20-2006, 05:01 PM
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NORTHERN LIGHTS NORTHERN LIGHTS is offline
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Quote:
Originally Posted by Evan Jones
I think mine were about 38" apart in the back on the '97 205 trailer. I made the lift bunks the same. The trailer has 1 piece bunks all the way to the front. So I guess I'd move them in. I have mine so they are just outside one of the strakes so as I slide the boat on the bunks in kind of self-centers.
Looks like identical lift hewitt --high lift
how deep do you keep your lift in comparison to the bunks
I.e. 6-8 inches above the cross bar?
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Last edited by NORTHERN LIGHTS; 04-20-2006 at 05:03 PM.
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Old 04-20-2006, 05:02 PM
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east tx skier east tx skier is offline
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I have an older boat/trailer, so my trailer only has two bunks. My bunks (and our lift) has a twist in it to conform to the hull. Our cradle/lift bunks are about 14' as well. I know the 197 trailer is different. But that sounds difficult to do on a lift. In the owners manual, there are some specifics about lifting and what surface area (250 sq inches IIRC). Also, bunks have to be continuous for a certain length IIRC. Check it out in the DL section.

The slightly twisted bunks work great for us. But there could be a reason they went to four on the newer boats of which I'm not aware.
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Old 04-20-2006, 05:05 PM
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NORTHERN LIGHTS NORTHERN LIGHTS is offline
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it just seems to me that i will have to move the bunks in to the flat part of the hull to grab the most surface area I can. I'll check out my owners manual, I didn't know they had lifting specs in there. Thanks!
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Old 04-20-2006, 05:08 PM
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Quote:
Originally Posted by NORTHERN LIGHTS
it just seems to me that i will have to move the bunks in to the flat part of the hull to grab the most surface area I can. I'll check out my owners manual, I didn't know they had lifting specs in there. Thanks!
I'd always heard to keep the bunks under the stringers. But we just told the guy who designed the cradle to model it after the trailer.
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Old 04-20-2006, 05:08 PM
NORTHERN LIGHTS's Avatar
NORTHERN LIGHTS NORTHERN LIGHTS is offline
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Quote:
Originally Posted by east tx skier
I have an older boat/trailer, so my trailer only has two bunks. My bunks (and our lift) has a twist in it to conform to the hull. Our cradle/lift bunks are about 14' as well. I know the 197 trailer is different. But that sounds difficult to do on a lift. In the owners manual, there are some specifics about lifting and what surface area (250 sq inches IIRC). Also, bunks have to be continuous for a certain length IIRC. Check it out in the DL section.

The slightly twisted bunks work great for us. But there could be a reason they went to four on the newer boats of which I'm not aware.
that pic is the exact reason I bought a lift--- '93 and beautifully clean!!!
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Old 04-20-2006, 05:11 PM
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NORTHERN LIGHTS NORTHERN LIGHTS is offline
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well thats what threw me off when i looked at the trailer. The dual bunks really hug the boat so i'm a little confused as to what to do with the lift. I also have heard to keep the bunks under the stringers, which would make me believe I should pull them in a little.
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Old 04-20-2006, 05:33 PM
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east tx skier east tx skier is offline
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Thanks! When it comes to following the trailer design versus putting them under the stringers, I'd say go with the trailer design based on the statements in the manual. I'm no expert to be sure, but MC designed these trailers to properly support the boat, so it would reason that they are perfect templates for lifts cradles.

If you see how the bunk supports are angled in the front and straight up and down in the back, that's also providing for some twist as well. The lift cradle has two bunks stacked for extra rigidity since there is no center bracket like the trailer has.
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To me, this forum is about love of inboard boats. It is about the sharing of information and, on a good day, some humor. It is not about post count, brand of boat, or any other superfluous labels that lend themselves to a false sense of superiority. Please, respect one another, try to pass on accurate information, and keep your eye on the ball.
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  #10  
Old 04-20-2006, 05:37 PM
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Granite_33 Granite_33 is offline
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Personally, I think the closer in, the better.

Though the hull is incredibly stiff, the wider out the bunks, the more inward stress there will be on the hull, IMO. I don't notice this on my X-9, but my old Maristar 210 I noticed that the windshield pinched in about .5" when the boat was on the lift.

I have my bunks just outside of the inside set of strakes. That way, when I lift the boat, I can center it at the same time because the strakes snug inside the bunks and can't move. Keeps the boat nice and centered on the lift.

Cheers.
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