ISO masthead for 1992 Catalina 28 or exploded parts view of pin and sheaves

Feb 15, 2023
1
Catalina 28 Brick
Hello to all.
My delrin sheaves at the masthead for the main halyard and the topping lift disintegrated and I need to install new ones. Before stepping the mast I would like to see how the pin and sheaves are supported/mounted under the masthead. If anyone knows where I could purchase this part it would be much appreciated.
I keep searching the web but am having no luck finding one.
Many thanks...Charles
 

jssailem

SBO Weather and Forecasting Forum Jim & John
Oct 22, 2014
24,892
CAL 35 Cruiser #21 moored EVERETT WA
I would check Catalina Direct and the shop here on SBO.

Documents and ideas might be available at the Catalina 28 Association. They have compiled a treasure chest of information and supporting documents on the boat.
 
  • Like
Likes: Richard19068
Jun 11, 2004
1,948
Oday 31 Redondo Beach
Do you know the maker of the mast?

 
Jan 11, 2014
14,263
Sabre 362 113 Fair Haven, NY
The sheaves are probably pretty generic, Garhauer, Schaeffer, and Harken make sheaves all you need is three measurements, the rope diameter, axle diameter, and sheave diameter. Zephyrwerks will custom make sheaves to your dimensions. High quality and quick turnaround.

 
Jan 11, 2014
14,263
Sabre 362 113 Fair Haven, NY
Hello to all.
My delrin sheaves at the masthead for the main halyard and the topping lift disintegrated and I need to install new ones. Before stepping the mast I would like to see how the pin and sheaves are supported/mounted under the masthead. If anyone knows where I could purchase this part it would be much appreciated.
I keep searching the web but am having no luck finding one.
Many thanks...Charles

His subject line states. ISO Masthead.
:facepalm: