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Author Topic:   trailer
Dick E posted 07-04-2000 04:20 PM ET (US)   Profile for Dick E   Send Email to Dick E  
My 98 Montauk trailer has center keel rollers and side bunks.
According to BW the keel rollers are supposed to take all the weight. The bunks just giving lateral stability
Looking at my boat the bunks are supporting the boat and the boat is a 1/4" above the center rollers. To corect this do I just change the angle of the bunks? If so do I make the angle more vertical or less?
lhg posted 07-05-2000 02:27 PM ET (US)     Profile for lhg    
Dick: You need to drop the bunks down. First launch your boat and then drop the bunks down so they won't even touch the boat. Then retreive the boat, winching it all the way up on the keel rollers. (incidentally, to adjust the keel rollers, sight the length of the straight section of your hull, then stretch a string over those rollers to make sure they all line up - the rollers where the hull starts to curve up to the bow are harder to adjust properly and involve some guess work!)
It will rock or lean over a little, but don't worry about it. You may have to re-adjust your winch stand and bow stop at this time also. (See Jim's picture on this subject). Then, snug your bunks up to the underside of the hull, as far out as possible, leveling the boat on the trailer, and tighten them to resistance, but not locking the bunks in place. Then, using a hammer, pound the supports on one side up REALLY snug against the hull and fully tighten the bolts. Then, put someone in the boat standing over the bunk you just tightened, and crank down the transom strap on that side also, and do the same on the other side. This will give you a really tight, rock-free installation, but all the weight will still be on the keel rollers.
After a while, as the boat settles on to the bunks and compresses the carpeting, you will have to re-adjust the bunks again, using same method. This method works very well with any size Whaler, and you will be assured all the weight is on the keel.
chad posted 07-06-2000 08:12 AM ET (US)     Profile for chad  Send Email to chad     
Great how-to advice. I recently purchased an 1984 Montauk with a 90hp Yamaha and trailer from the same year. The motor has been checked out and serviced, the hull has had her dings repaired, now its time for the trailer. It has rear bunks, and four rollers (no keel rollers). I want to add keel rollers and remove the wobble rollers. Can I add keel rollers with only two cross bars? Would two in-line rollers per cross bar be necessary?
Clark Roberts posted 07-06-2000 08:24 AM ET (US)     Profile for Clark Roberts  Send Email to Clark Roberts     
Chad, get rid of those "wobble rollers" as fast as you can... they can actually "roll" the outter hull skin away from the foam, thus destroying the bond and making room for water intrusion... and ruining the hull!!! Don't waste any time... use double rollers (polly) on both cross members.. more would be better but if two cross members are all you have then that's it.... use the bunks to steady the hull, not carry the weight... good luck..Happy Whalin'... Clark

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