Originally Posted by James ingham
Problem is i launch the boat every time i use it .....
Me too. Here's what I do and I've been doing it for many years and I'm still using the original shoes after 11 years though they are now at the end of their life.
I grease everything, the back plate, the shoes, inside the reverse shoe mechanism the cable attachment - the lot. I use a grease designed for external usage on heavy stuff, steel hawsers, steel sliders, slow moving bearings etc. There are various greases for this type of use and all the major lubricant suppliers have a version. I use a Fuchs product, one of the Renolit series of greases. It's very heavy in consistency and a kind of dry skin forms on its surface so it's not drippy or runny. I did try it for wheel bearings but it's not designed for that use and it wasn't as good as a general purpose water resistant grease for that application.
I've had no problem with the grease melting and seriously contaminating the shoes and the small amount that occasionally gets to them appears to burn off very quickly with no noticeable effect on the braking.
For the cable problem; I removed them from the outers and use them as bare cables. In my case I use rods for most of the brake system and only terminate the rods with cables but it would be easy enough to run the inners around pulleys to guide them. The cables are greased up in the same way as the brakes and this is the first year I've needed to replace them because of corrosion. I've replaced them with stainless steel so, hopefully, that's a final solution.