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Mechanical and Plumbing Systems / Re: sump pump switch
« Last post by MangoCats on February 21, 2019, 10:36:46 PM »
For whatever reason, both the sinks in my 1984 303 go to below the waterline thru-hulls.  Both of which happen to have seized (open) seacocks at the moment - currently applying PB blaster and patience to them.
Mechanical and Plumbing Systems / Re: sump pump switch
« Last post by Valor on February 21, 2019, 04:53:53 PM »
The sink in the head on my 78 323 goes to an above the waterline though hull fitting. No sump pump. Mine doesn't have a shower installed either but I have one in the cockpit.
Electrical Systems & Electronics / Re: Raymarine EV-100 Autopilot
« Last post by Dolce_Vita on February 21, 2019, 08:50:22 AM »
A PO mounted my fluxgate compass under the port settee, at the bulkhead between it and the hanging locker. Seems to work out ok there.
Mechanical and Plumbing Systems / Re: sump pump switch
« Last post by MangoCats on February 20, 2019, 12:19:13 PM »
I'm sure it's no longer original, but my 303's head-sink drains to an underwater thru-hull under the sink, while the shower drains open to the bilge, though it looks like at one time there might have been a shower sump pump that ran to a thru-hull above the waterline on the stern (that thru-hull is connected to a hose that ends unterminated in the bilge, not far from the unterminated hose leaving the shower drain...)  There's a red-lighted pump switch above the sink - the switch lights up when it's turned on, but nothing appears to happen in response (still tracing all the head plumbing and wiring, there's quite a bit....)

I suppose if we started using the shower on a regular basis, I'd want to send the drain water directly overboard, instead of letting it loose in the bilge to go out with the normal bilge water... what type of pump would be appropriate for a shower drain?  It will "run dry" as a regular course of operation, so I don't think that normal bilge pumps would like that duty, unless the showering passenger could be trusted to manually operate the electrical switch (while they are wet) to just pump the floor dry, before it overflows but not after it's fully drained...?

Mechanical and Plumbing Systems / Re: Bilge pump hose route
« Last post by MangoCats on February 20, 2019, 12:09:32 PM »
My "high output" bilge pump wasn't getting any water out, I traced that problem to a kinked hose... not sure how likely you are to have a kink you don't know about.
Mechanical and Plumbing Systems / Weeping bladder
« Last post by MangoCats on February 18, 2019, 10:36:03 PM »
My 303 has 2 100 liter bladders under the aft portion of both settees... to starboard is a blue cloth covered bag with a duct-taped jerry rigged outlet hose - it seems to be holding water just fine.  To port, there is a black vinyl NAUTA bladder with stitched seams, and the bottom seam is weeping, ever so slowly.

The bladders were full when I purchased the boat last December, they didn't run low until 60 days later (and then only because I've been using galley and head sink water for LOTS of stuff, not conserving it at all..), so it's obviously not a fast leak, but it is just enough to see a tiny trickle entering the bilge.

So many other things to address first, I'll definitely not be sweating this one any time soon, but... any ideas for what I might do to make it better 60+ days from now when it's empty again?
Electrical Systems & Electronics / Re: Raymarine EV-100 Autopilot
« Last post by Alma on February 18, 2019, 06:43:31 PM »
I mounted mine in the bilge just aft of the sump. It is on centerline and also in the center of the boat as specified by Raymarine. It is submersible so an occasional splash of bilge water or beer isn't a problem. I made an aluminum bracket that attaches to the hull liner joint fastener so again no new holes drilled in the boat. I mounted the controller aft is starboard lazzerette aft of hatch.
Electrical Systems & Electronics / Re: Raymarine EV-100 Autopilot
« Last post by rnebergall on February 18, 2019, 05:32:57 PM »
I think Valor has the right idea.  I too have the EV-100.  It has been great (nearly indispensable), since I also single-hand most of the time.  As for mounting, mine is on the bulkhead immediately forward of the chart table.  Biggest issue I have had is that this location influences what you can store in the starboard storage areas. Once I learned how sensitive the sensor core is to nearby ferrous material, it has worked wonderfully.  I have been very happy with how well it handles weather.
Boat Handling / Re: The iron sail on a 303
« Last post by MangoCats on February 18, 2019, 02:42:28 PM »
I think the 303 is just as much of a fatso: 10,000 lbs for 30'3" LOA, and nearly 11' of beam.

When I took possession of the 303 there was a small puddle of oil under the engine, enough to saturate a new oil absorbing pad and still need some wipedown/cleanout.  Since then, only a drop or two has showed up on the new pad, so I'm hopeful that the oil was more spilled during service than leaking underway.

Going back now to check on how things look after yesterday's 4 hour motor-cruise, when we get back to the dock with the kids it's more an exercise of batten the hatches and check the dock lines than a full-on engine and systems inspection every time.
Boat Handling / Re: The iron sail on a 303
« Last post by Valor on February 18, 2019, 12:00:35 PM »
Carbon is a big deal in the Yanmar exhaust elbow/mixer. Do not be afraid to run the engine hard at some point of your trip.
My 3gm30F has a continuous of 3400rpm and a 3600rpm max.I almost always cruise at 3-3200k RPM all day and I will run full throttle for a few minutes just to blow everything out at the end of every trip. Fuel is cheap, carbon and a damaged engine isn't .

My boat squats under power, how much, I'm not to sure, but I think it's because the 323 is a fatso at 13000+lbs and the prop is digging in to get the boat to move. I need a drop of port rudder to keep it going straight at 7 knots under power as well. Other than that, I have no stability issues. When the boat was over propped, I had some diesel smell and a little smoke. Since I re propped the boat doesn't smell unless I'm DDW and even then it's very light.

Check your prop while you are doing all of this. If you can hit redline your good. if you can't you could be over pitched. Makes a huge difference in the happiness of the motor and speed.

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