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post #1 of Old 07-16-2007 Thread Starter
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Hi-Low Reefer/Rigid Boom Vang

I have recently purchased a 30' sailboat with a Hi-Low Reefer (in boom mainsail furling) and rigid boom vang all by John Mast. I have tried to contact the John Mast company via website email as well as any of their english speaking distributors (no state side distributors) but received no response.
I am having trouble with the furling system jambing when lowering the main and have to limp back to the slip and wrestle it into the boom. It seems to bunch up and jamb at the base of the mast. I have been told by fellow sailors that the boom must be at 87 degrees to the mast (3 degrees above horizontal) for it to furl properly. The rigid boom vang will not hold it that high and actually allows it to drop to about 5-10 degrees below horizontal. I find no adjustments on the boom vang and it is sealed with revits.
Does anyone have experience with this system, know of a stateside or english speaking distributor, or have knowledge of how to get this system working properly. Someone has suggested I drill out the rivets and remove and stretch the spring (I don't want to tear it up). Alternatively I could reposition the vang on the boom closer to the mast, but will it eventually sag and the spring need to be stretched anyway.
I would appreciate any help/input on this matter. I am mechanical and can fix it myself if I just have some proper understanding/input/instructions (If anyone out there has the installation/instruction manuals for this system I could probably figure it out).
Thanks - Capn Santiago
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