Another good idea to checkJim -------- Original message --------From: Josh Muckley via CnC-List <cnc-list@cnc-list.com> Date: 5/23/18 3:41 PM (GMT-05:00) To: C&C List <cnc-list@cnc-list.com> Cc: Josh Muckley <muckl...@gmail.com> Subject: Re: Stus-List Coupling bolts shearing I sounds like having the bolts loosen is the root cause. When I got my straight drive the coupler was held by carbon steel bolts with lock washers and nuts. They never came loose. When I added a vibration dampener the new bolts came with nylock nuts. They advised torqing them to the correct spec. I've never had them come loose either. Lock nuts, lock washers, locktite, and/or the proper torque are the only suggestion I can provide based on your description. Josh MuckleyS/V Sea Hawk 1989 C&C 37+Solomons, MD On Wed, May 23, 2018, 3:35 PM detroito91 via CnC-List <cnc-list@cnc-list.com> wrote: The v-drive has a coupler holding the shaft . The bolts on the coupler loosen and then shear off. Fortunately only the bolts have been the only damageJi
-------- Original message --------From: ed vanderkruk <primeinter...@gmail.com> Date: 5/23/18 3:16 PM (GMT-05:00) To: cnc-list@cnc-list.com Cc: Jim Schwartz <detroit...@aol.com> Subject: Re: Stus-List Coupling bolts shearing You have a keyway in the shaft and transmission coupling? Ed On Wed, May 23, 2018, 3:14 PM ed vanderkruk, <primeinter...@gmail.com> wrote: When you say coupling bolts ... the bolts mounting the transmission to the bell housing? Anyone check the transmission? Ed Prime Interest 1982 LF38Toronto On Wed, May 23, 2018, 2:49 PM detroito91 via CnC-List, <cnc-list@cnc-list.com> wrote: The boat in question is an 81 landfall 38.The v-drive coupling bolts have sheared off 3 times and caused loss of power.Have been very careful to pause when changing gears.The westerbeak engine runs great throughout all this. The shaft removed and checked after the second time. The 2 bladed max prop sent back and rebuilt. New motor mounts installed by po when replacing engine. About 4 years ago (<200 hours on engine) coupling. Allignment done each time and found okay.I am looking for advice, suggestions, similar situations and corrections. HELPLosing confidence in boat.ThanksJim schwartz SEA YA I 38 LF Washington nc _______________________________________________ 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
_______________________________________________ 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
