rebuild sheave support

[Mike Johnson]

My 71 e-32 has tiller & wheel steering. The strbrd side sheave support has broken. It is a 1/4" 6 x 10 " piece of steel that was bonded to the hull. Before it broke there was a lot of flex. My plan is to go in thru the strbrd lazzeret, cut a access hole , and then epoxy some plywood to the hull and bulkhead and mount the sheave . Has anyone else had this project come up?? Thanks for any advice.....MJ

 

[Art Mullinax]

Try Starboard instead

Rather than using plywood, try to find a source for the Starboard material. It wont rot away or delaminate like plywood...It's also good for backing plates for your thru hull valves...
Art M

 

[Mike Johnson]

old sheave - steel??

Art , thanks for the idea . The problem I see is that the old support was 1/4" steel ?? that was bonded /glassed to the hull only on the bottem, and therefore was NOT stiff or stable at all. I thought I would use 3/4" marine ply and epoxy it to a nearby bulkhead and also put another backing brace behind it. Is there any reason why that support should move at all ??? MJ

 

[Art Mullinax]

Flexing Sheave

I'm not sure about your particular issue with the sheave flexing but I would check for an alignment problem. The quadrant arm on the rudder post may not be aligned with the sheave and this could cause a flexing problem.
Art M.
71/E29