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Wow - that's quite a project. My roof had some moisture so I drilled out some 1 inch holes from the ceiling but not penetrating the top layer of fiberglass. I found a mix of plywood - mostly the rear section, and balsa core. There's a separate fiberglass headliner about 1/8 inch below the...

I'm impressed. You filled a commercial vat with EvapoRust? How long did you let the doors soak?

I have the plumbing apart in my Perkins T6.354. The exhaust manifold has some orange- black crud in it. I'm contemplating using Evapo-Rust to clean inside the water jacket. Which do you think is the best chemical? It seems there are two types: phosphoric acid or a chelating agent (Evapo-Rust)...

Is there a wiki space, or should I just post a very long message?

Wow - that's terrifying. I had a scary but much milder experience in my Cal 20 close to that spot. The wave didn't break but was steep enough to surf down, out of control , then broach and round-up. I read somewhere that a rule of thumb for a beam-sea is a breaking wave with a height of 1/4...

I keep a cheap spare electric pump onboard with alligator clips and enough wire to run to the power bus.

+1

Is there any interest in a DIY article on rebuilding a Holset/Schwitzer 3LD turbo from a 1977 Perkins T6.354? I just finished rebuilding mine and took a bunch of pictures during the process. I can post the pics and write-up the process. Is there a wiki or place in the forum for these types of...

I have a 1978 Mainship, it has a similar flybridge that extends to form a roof over the cockpit. I suspected there was moisture, even though there are no soft spots. Realistically, any boat that old with plywood core fiberglass is going to have some intrusion. So one day last year I drilled a...

There may be a dual moter oil and transmission oil cooler. In mine it is not serviceable and is brazed together.

I didn't check the tides. What I noticed though, is how totally unpredictable the waves were across the bar. There was nothing comparable happening in the main shipping channel. Makes somewhat of a case for taking it wide (offshore) when coming home from a fishing trip off Duxbury reef. However...

I agree. I purchased my raw materials from them as well. Friendly, expedient shipping, cost efficient, and high quality.

My air charge cooler had heavy scale on the inside. I cleaned it all out with a wire wheel, even the nipples, one of which lost about 3/16" on one side. It's all solid iron and despite the corrosion, it's structurally sound. I added epoxy to the inside of the casing and I'm adding a zinc to...

The bleeding process was pretty simple for me - I replaced the final filter at the main pump, loosened the two bleeding screws and then hand tightned them. I can reach the pump lifter lever and the bleed screws at the same time, so I could apply pressure, release screw (release air), tighten...

I have a T6.354 and had a problem with similar symptoms. At the time I was running on only one of the two tanks. I immediately switched to the other tank and it started right up. There was a sucking sound when I opened the valve to the other tank. I believe the inside of my fuel pickup tube...

Risk is something that has been discussed - here's my perspective. What is the risk of loss of life from a failed raw water cooled exhaust manifold? It's non-zero and probably significant since failures in the manifold: - Have actually happened - Have led to immediate engine failure -...

My concern is adding too much heat to the raw water system by just adding the manifold into the freshwater circuit. If there was a larger sized OEM heat exchanger designed for the extra heat added from the manifold then it would be a simple and appropriate solution. I haven't seen this, so I'm...

I don't know. If you're more inclined to keep everything stock then bailout of the below. I would get creative, especially if I had two engines - but only because I am cheap and enjoy solving these types of problems. Certainly risk is a big consideration here, as this is a critical component...

Oh come on, let's not start quoting darwin awards. To be clear - the post is a question about whether or not a titanium pool heat exchanger can used to cool a marine diesel. The titanium exchanger I was looking at is interesting. I was hoping to hear positively either success or failure in its...

I shot the video and yes, the trawler had transited that area. I transit the bar frequently and decided to get the bird's eye view of it. I saw some large swells forming but not breaking. I decided to video some of it to show my cousin who is learning the ropes, to show him how the swells...

I couldn't see bypassing the air charge cooler. The ebay unit is similar to mine - but you'd have to see the inside of it, up close, to know if it's any good. Mine had heavy corrosion and you'd have to know how thin the cast iron sleeve is. Seems like plastic would be a much better housing...

I'm also contemplating options for converting my exhaust manifold from raw water cooled to fresh water cooled. Where the raw water goes through the manifold I'd replumb it to go through the titanium exchanger, and then in to the wet elbow. Then add the exchanger to the fresh water loop...

I filmed this yesterday. It shows a trawler coming in safely from the ocean, however you can see a 15' - 20' sneaker wave breaking a few hundred yards behind it, where it had just been. https://youtu.be/AZ9kru3KLDE

Fantastic - I just cleaned mine out and contemplated something similar. I'm glad to hear it's working well' because cast iron seems like a poor material and pvc seems more logical.

Do you have a hot water heater on your boat? The hose that runs to your manifold appears to be the one that runs to my hot water heater.