F14CRAZY
Ensign
- Joined
- Aug 12, 2008
- Messages
- 945
What are typical sterndrive trim cylinders made of? I'm under the impression that they're aluminum with stainless rods.
While this project is far from being under progress I've been brainstorming ideas on fabricating a hydraulic swim platform for my Coho to carry my 6x6 AATV as a dinghy. I'll figure out reinforcing the transom but I figure the out wouldn't care much about the weight (I figure the AATV weighs less than 400 lbs).
To launch and retrieve the Amphicat AATV I would like to engineer a platform just a bit bigger than its current, pretty typical teak platform. Using off the shelf marine components I figure that something like a Mercruiser or OMC Cobra trim pump could run a couple hydraulic cylinders to raise and lower the platform. Switches could be added to the transom. I'd imagine the pump could deal with a few hundred pounds considering it can adjust the trim on a sterndrive powered by a big block under way.
With the idea I have in my head, sterndrive trim cylinders do not have enough stroke for this. I could get a couple industrial/agricultural cylinders with like a 24'' stroke and I think it would work but these cylinders would be mounted under water. The boat will be kept in a slip seasonally.
I take it that these cylinders are cast iron with chromed steel rods. I can keep at least the cast iron parts painted and attach anodes but I'm concerned about the chrome part of the rod rusting.
Think this would all work?
While this project is far from being under progress I've been brainstorming ideas on fabricating a hydraulic swim platform for my Coho to carry my 6x6 AATV as a dinghy. I'll figure out reinforcing the transom but I figure the out wouldn't care much about the weight (I figure the AATV weighs less than 400 lbs).
To launch and retrieve the Amphicat AATV I would like to engineer a platform just a bit bigger than its current, pretty typical teak platform. Using off the shelf marine components I figure that something like a Mercruiser or OMC Cobra trim pump could run a couple hydraulic cylinders to raise and lower the platform. Switches could be added to the transom. I'd imagine the pump could deal with a few hundred pounds considering it can adjust the trim on a sterndrive powered by a big block under way.
With the idea I have in my head, sterndrive trim cylinders do not have enough stroke for this. I could get a couple industrial/agricultural cylinders with like a 24'' stroke and I think it would work but these cylinders would be mounted under water. The boat will be kept in a slip seasonally.
I take it that these cylinders are cast iron with chromed steel rods. I can keep at least the cast iron parts painted and attach anodes but I'm concerned about the chrome part of the rod rusting.
Think this would all work?
