Kenyon Boom Question

[Nereussailor]

I have a Kenyon 3550 boom on my 1983 H30. It hasn't been rigged yet by me. I need to know how the in boom, dual line reefing is supposed to be rigged up. There is a sheave on each side of the boom end with cams for locking the line. Other than that I can't tell you much. I've tried to reach someone at Rig Rite but they are so busy, they can't even answer their own phones. I'm also looking for the propper way to rig the in boom outhaul. The Kenyon parts list says that there is a 40' line needed to bring the outhaul back to the cockpit. That seems kind of long. also, How much of the wire for the outhaul should be sticking out of the end of the boom . that should determine how much line is in the 4:1 purchase inside the boom.

 

[Seattle Scott]

Outhaul is a mystery but reefing is known

Mines an '85 37c, but boom sounds the same. On the reefing, Bitter end of each reef line starts with a tight loop around the boom, just aft from where each leach reef cringle would lie on the boom. Then thread the line through the cringle and back to the boom end. Then take the tack end sheaves off the boom ( two thru bolts?)and run a fish tape aft thru to the boom end to grab the reef line and pull thru and out the other end of boom and thread line thru the sheaves. One upgrade I did was to hang a couple of turning blocks on the vang bale at the mast foot. Then I could run the reef line from the gooseneck down to the block then up to the mast mounted halyard winch and cinch up on the clew reef, lock off and then use the winch to raise the main tight again. On the outhaul, there is some sort of 2:1 system in the boom, which I haave never really seen.

 

[Jim Legere]

Kenyon Boom Outhaul

Scott has it exactly right on the reefing lines. I added a couple of stainless steel eyes or loops, screwed to opposite sides of the boom where the reef cringles end up, to sort of hold the reefing line bitter ends in the right spot. But, definitely tie a loop right around the boom to secure the bitter end of each reefing line (lots of force on these lines).As to the internal outhaul (sounds funny?) there should be a bolt through the boom near the gooseneck end. The gooseneck itself is held to the boom by about three screws, If the screws have been there a while, they will be difficult to remove - try using a hand held impact driver type screwdriver (available at autoparts stores etc.) Once you get the gooseneck end of the boom off, remove the bolt holding the captive end block of the outhaul purchase. You should now be able to remove the whole purchase from the other end (clew end) of the boom. The wire will probably stay captive in the turning sheave at the clew end fitting, unless you choose to disassemble this as well. With the purchase outside of the boom, it is easy to figure out how much line you will need to reeve through the blocks. On the Hunter 37C its a triple purchase, starting at the fiddle on travelling block, passing through the stationary block (the one held by the bolt near the gooseneck) and turning once around the travelling block before exiting at the gooseneck fitting. From the gooseneck, its round the sheave and back to a cleat on the underside of the boom or anywhere else you choose to rig it. Reinstall the captive block, the bolt and the gooseneck fitting (use 3 new screws!) and you are back in business. If this is totally incomprehensible, send me your fax number and I will fax you a sketch. (you can email me through this site - owners' directory)Good luck!Jim Legere

 

[Nereussailor]

reefing

Is one of the reefing lines for the first reef and the other for the second reef? If so what do you do with the clew end? I've always had to reef by hand.As for the outhaul, thanks for the info. I'm going to run the line to a stand up block at the base of the mast, through a deck organizer and then back to the cockpit through a clutch.

 

[Mike Daus]

As shown in Jim B's post

I too have some additional paper work on rigging the boom that says the reef line should be tied to the cringle, wrapped around the boom, back up to the cringle and down to the sheave at the boom end to give additional purchase.Also, disassembled my boom a couple years ago and cleaned it all out (20 years of bird nests, etc. inside). Found that the end of the outhaul line was secured to the inside of the forging at the front of the boom with only a half-hitch knot. Suspect it was that way from day-one. Seems it could have easily given way with increased pressure on the outhaul. I'ld suggest boats with this arrangement should check this attachment point (pain in neck to get to).When rerigging the outhaul wire/rope/block, one needs to be careful how the line is fed. The three bails for the mainsheet that are bolted through the width of the boom can interfere with the internal block at the end of the wire outhaul. Can't remember how exactly it is supposed to go.

 

[Nereussailor]

Tack end

Does the tack end just get hooked on the reefing hook on the mast end of the boom or is there a better way to set that end up?

 

[Jim Boernge]

don't understand the question

Tack end of the outhaul, the reefing line, the sail?