The sheaves in the reef outhaul cheek blocks on my N26C were almost completely worn out. Rather than buy and retrofit new blocks as Meriman is out of business, I did a jury rig.
Drilled out the centre pins, and replaced the worn out sheaves with a Schaefer 62-219 1 3/4" x 1/2" with the centre hole bored out to 13mm (17/32). See pics.
Dave DeWolfe
NS26C #150
Marriotts Cove NS
I forgot to say that the drilled out pin was replaced with a flathead bolt and locknut.
Did you use a long bolt with an unthreaded portion on which the sheave rides and then cut off the extra threaded length?
Ward Woodruff
N33 #8 Margery
Niantic Bay, CT
The sheave rides on a 1/2" sleeve. The new bolt goes through the sleeve so the presence of threads do not matter.
Perfect.
Ward Woodruff
I thought more about the bolt. If you have the threaded portion under a shear load, because of the reduced diameter in the root of the threads, that area is not as strong in shear as the unthreaded portion. More of a difference with a course thread as opposed to a fine thread.
Ward Woodruff
