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As noted in previous post, had a minor configuration problem that turned out to be an ambiguous wiring drawing issue. System has passed the operational portion of the check out. The decision has been made to install a dedicated electrical raw water cooling pump for the oil cooler. Almost...

Zig- It's a standard zinc.. you can get it at any marina ships store or West Marine... take your zinc head with you when you go to get them and they can size them up for you. FYI... you want the overall length to be 3 inches.... when I went to get my last batch, all they had was the 4...

Jim- There is another one on the raw water pump intake... see below I personally don't like teflon tape... I use Leak Lock for most all pipe fittings whether it's on the fuel side, fresh or raw water side... Amazon.com: Highside Chemicals 10004 Leak Lock 4 Ounce Brush-Top Plastic Jar ...

There was some discussion on the wood block mounting in previous posts. As discussed, there seems to be different methods for supporting the actuator/fin assembly. As I was reviewing the NIAID manual last night, ran across a drawing that provides some insight as to the different support...

Zig- The "hex bolt" is definitely the zinc for the raw water side of the heat exchanger. You can easily remove that zinc while you're on the hook. That is the raw water side and as long as the engine is not running, there is no pressure or flow through that pipe and flange. Think you have...

Here's the Pilot House "cable spread room" small DC-DC converter..

2-25-22 Update - All the wiring was completed yesterday. Both controllers (Pilot House and Flybridge) were wired and interfaced. The NIAID control box was also interfaced with my Garmin Pilot House MFD so the GPS speed could be used for automatic centering of the fins below 3 kts. They also...

Sky- Here is what they are using on my system... 1 (warrenoil.com)

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Here's s few more pics of the hydraulic pump installed, oil cooler/reservoir piped, plumbed and wired and actuators plumbed and wired...

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Well.... sometimes you just have to trust your gut and go for it....

I originally posted this up in December 2021....got no responses. Now I'm diving into it. I've removed all the mounting screws from inside flange. My first thought and attempt as to see if I could simply pry the old portlight and frame out of the opening. I should have thought better. I'm...

Interesting view of the engine room.... looking up into engine room from outside boat through hole drilled for actuator assembly...

1/20/22 Update - The support block fairing and shaping is complete. The support blocks haven been temporarily affixed to the hull. The actuators have been lifted onto the boat and staged in the engine room. Interesting factoid... each actuator weighs in at 137 pounds. Tomorrow and early next...

Did they glass over the internal brass mounting plate and support block mounting screw heads as well?

Interesting info .... the original blocks on my boat were also round. You can see the imprint in this pic... My understanding is that the entire mahogany will be coated in resin in my install where there is no fiberglass. I understand they will add thickened resin to the underside and let it...