Save-A-Boat - The Forum for Plastic Classic Rebuilds!

Normaly, your MD7A should have about the same amount of water coming out either cold or hot. The thermostat only re-route the water inside the engine bloc with no real effect on the flow. I did a complete rebuild on my MD7A last winter so I'm starting to understand the beast... Did you check your im...

Another question.... While I was looking for new seacock I saw that some of them are in bronze with a 316 S.S ball. I will doubt the ball is perfectly insulated from the valve body (even more when they are full of salt water!) . Then they should have the same dissimilar metal problem ? Are good qual...

Actually, what I have is a bronce thru-hull with a bronze valve screwed on top of it. Like your picture, but in two seperate pieces. After the valve there is a close nipple (male-male) then a Te ( fem-fem-fem). On the 2 free openings of that Te, are the hose adapters (one hose comming on each side o...

If bronze and S.S. create a battery maybe I can use my new installation as an emergency power source! Seriously, I think I will stick with bronze. It has worked fine for 31 year and it looks more "classic" than shiny S.S. ( Yeah, I know these seacocks are deep inside the boat where nobody ...

The plumbing I'm talking about is simply a 1 1/4'' T screwed on the ball valve (screwed on the seacock) with two insert adapter for the flexible hoses coming in. It was made like that to accomodate the two 1 1/4'' hoses coming from the cockpit drains. I have the same set-up on each side of the boat ...

Hi everyone,

Some of the plumbing attached to the (bronze) seacock of my boat need to be replaced. Is there any reason why I shouldn't use Stainless instead of bronze ? S.S. is about half the price of bronze and alot easier to find here...

Thanks

I just finished sandind the bottom of my A30 and I noticed some thin gelcoat spots too. I really think about a barrier coat but I'm wondering why a lot of people are "against" it? The hull is dry and I want it to stay dry so why I shouldn't put a barrier (epoxy) coat? Gelcoat blister are n...

Thanks for the answers. I like the idea of being able to move the axles to adjust the weight on the truck.... Will save me some stress about being right with my calculations. Also, for anyone else who could have the same problem, I found on a technical sheet that the center of gravity is 16' 1'' aft...

Does anyone know where is center of gravity of an empty (no fuel, no water, no engine) A30? I'm designing a new trailer for Dharma and I would like to calculate where to put the axles...

Thanks

Thanks you very for the answers. It's exactly what I was looking for.

Rachel: Sure, I will send some picture soon on the "project" forum and I'm very please to be part of this helpful and active forum.

Hi everyone, During the last few months, I spent most of my spare time rebuilding my old volvo MD7A. I rebuilt it mostly to learn how it works (it is my first diesel) and to have a better idea of is real condition. The engine is 31 years old and I didn't know much about is first 30 years of life exe...