As discussion of your problem evolves it continues to baffle me. I have a similar garhauer block with cam cleat. I've simply never had a problem with mine. Then again my cleat is at the end of a 12:1. I think you're on to it with the shock loading. Typically cam cleats are only supposed to be capable of hand loading (50ish pounds). If there is any slack or play during a gybe the shock load could probably be what is causing the problem. I have a cam cleat on my headsail furler and in heavy winds (when the headsail is furled) it can come loose. As I recall this typically occurs during the brief period of time when the sail is luffing during a tack.
So there it is. During the gybes I typically pull the mainsheet in as tight as possible and tend it to snub the impact as it comes over. Barring that, try a higher ratio purchase system to lessen the load felt on the cam cleat. Josh Muckley S/V Sea Hawk 1989 C&C 37+ Solomons, MD On Mon, Jun 4, 2018, 9:30 AM David Knecht via CnC-List < cnc-list@cnc-list.com> wrote: > I had a problem for the last two seasons with my main sheet handling > system. I have a double ended system, with a 5:1 on the traveler with a > Garhauet triple block with cam cleat then led forward to the mast and back > to a winch on the cabin roof. The advantage is that I can quickly adjust > in lighter airs with the traveller system and winch the main in heavy airs > at the other end. It works fine except I had a problem that many times > (not always) when I jibe, the main sheet pulled out of the cleat on the > triple and the line ran out until it hit the stop knot. It happens so fast > that I really could not see why this was causing this. It would happen > even when the traveller car was stopped on both sides and there was loss of > tension on the sheet prior to the jibe. The only thing I could see that > might be an issue is that the block has the cam cleat on the underside so > perhaps it was “falling out” of the cam during the jibe. We tried to make > sure the sheet was not dangling down into the cabin, but it still seemed to > happen. As a last resort, I ordered a triple from Garhauer with the cam on > the upper side and installed it recently. I was in a race yesterday in > heavy air, and it happened again with the new version of the block and > cleat. Does anyone have any insights on what is causing this and how to > stop it? Thanks- Dave > > Aries > 1990 C&C 34+ > New London, CT > > > _______________________________________________ > > Thanks everyone for supporting this list with your contributions. Each > and every one is greatly appreciated. If you want to support the list - > use PayPal to send contribution -- https://www.paypal.me/stumurray > >
_______________________________________________ Thanks everyone for supporting this list with your contributions. Each and every one is greatly appreciated. If you want to support the list - use PayPal to send contribution -- https://www.paypal.me/stumurray
