I wouldn't try replacing mast head sheaves unless the mast was out and placed somewhere I could work on it safely. The mast head sheaves on my Offshore Spars mast ride on SS axles and they are captive inside the welded mast. I had the mast pulled and did the following:
Step 1: remove the halyards and rig pull strings. (You will later need pull strings or halyards to hold the new sheave in position to insert the axle) Step 2: remove two screws holding on a SS plate that blocks the exit hole for the sheave axle on one side Step 3: use a small 3# sledge hammer and a 1/4" punch that fits into the little hole on the other side and drive out the axle Step 4: catch the sheave as it drops through the halyard exit slot when the axle is part way out. Install new sheaves following steps in reverse order. In my case the main halyard sheave rides alone on a 1/2" axle and two spinnaker sheaves ride on an axle and the jib halyard rides on it's own axle. I can share pictures. Chuck Scheaffer Resolute 1989 C&C 34R > On 01/30/2021 5:30 PM Adam Hayden via CnC-List <cnc-list@cnc-list.com> > wrote: > > > This is a timely post. How do you access the sheaves at the top of the > mast? My masthead is welded completely. I have seen other masts where the > top plate is bolted on. > > Adam > C&C 36 > Pictou NS > Thanks to all of the subscribers that contributed to the list to help > with the costs involved. If you want to show your support to the list - use > PayPal to send contribution -- https://www.paypal.me/stumurray Thanks - Stu >
Thanks to all of the subscribers that contributed to the list to help with the costs involved. If you want to show your support to the list - use PayPal to send contribution -- https://www.paypal.me/stumurray Thanks - Stu
