Official 370 Sundancer thread

Where does one mount larger MFDs on this boat? I put a 7” Axiom directly above the steering wheel, but it was tight. The radar space is obvious, but where else? Is there a pod you can mount above the dash? I don’t really like bracket mounts, but this is what I’m left with.

You've got to save up all your beer cans and replace the radar :) It's the only logical spot for a big one. The only downside is you have to rip out what's there...which means you need a modern radar to connect to a modern MFD.

Heap big money.
 
Is there a seperate forum for the early 90s 350 Sundancers? Both are great boats, but lots of differences. Where should I be looking for help with this new beast?
 
We have just purchased a 1996 370DA. I would like to remove the salon AC unit for cleaning. How do you get to it.
 
We have just purchased a 1996 370DA. I would like to remove the salon AC unit for cleaning. How do you get to it.
pull out the drawers in the mid cabin to access the front, and filter. Remove stuff from the hanging locker and remove the bottom plate to access the top of the unit. the side panel accesses the plenum hose.
 
pull out the drawers in the mid cabin to access the front, and filter. Remove stuff from the hanging locker and remove the bottom plate to access the top of the unit. the side panel accesses the plenum hose.
Thanks, sounds like fun.
 
So looking for some thoughts. New to me 1998 370 7.4 MPIs. About 400 RPM short of 4200 WOT. Assumed it was prop related as they are not the stock 3 blades but 4 blades. Just pulled the nuts off so I could get a look at the markings. Looks like a 17 x 21 4 blade (Austral 1721L4Q).

Reading thru here (and the parts manual), stock pros are 18 x 21 3 blades. Looks like most owners here replaced with 18 x 19 4 blades. My understanding is the 2 inch pitch reduction will offset the RPM reduction caused by the 4th blade. So my suspicion was that a previous ower just put 21 pitch 4 blades on there. The 21 was right, but what is throwing me off is the dia reduction to 17 inches. Reading the interweb, it doesn't sound like that smaller dia would have a lot of effect.

So is my best bet just to add some 18 x 19s and enjoy? Thanks in advance.
 
So looking for some thoughts. New to me 1998 370 7.4 MPIs. About 400 RPM short of 4200 WOT. Assumed it was prop related as they are not the stock 3 blades but 4 blades. Just pulled the nuts off so I could get a look at the markings. Looks like a 17 x 21 4 blade (Austral 1721L4Q).

Reading thru here (and the parts manual), stock pros are 18 x 21 3 blades. Looks like most owners here replaced with 18 x 19 4 blades. My understanding is the 2 inch pitch reduction will offset the RPM reduction caused by the 4th blade. So my suspicion was that a previous ower just put 21 pitch 4 blades on there. The 21 was right, but what is throwing me off is the dia reduction to 17 inches. Reading the interweb, it doesn't sound like that smaller dia would have a lot of effect.
So is my best bet just to add some 18 x 19s and enjoy? Thanks in advance.

We have all been looking for some mythical hole shot, which most of us do once a year.
I don't go far enough in this boat for it to really matter. No one can afford 4200 rpm for very long anyways. If you are happy at 3200, you are golden. If not, work that mark, not firewall.
 
We have all been looking for some mythical hole shot, which most of us do once a year.
I don't go far enough in this boat for it to really matter. No one can afford 4200 rpm for very long anyways. If you are happy at 3200, you are golden. If not, work that mark, not firewall.
I am more than happy with the performance. 3000-3200 all day in the low to mid 20s. Just want the right, bad ass props on it. :) My last boat went WOT exactly 2 times -- one when I sea trialed it and the other when the current owner sea trialed it.
 
I am more than happy with the performance. 3000-3200 all day in the low to mid 20s. Just want the right, bad ass props on it. :) My last boat went WOT exactly 2 times -- one when I sea trialed it and the other when the current owner sea trialed it.

So good at 3100-3200 RPM. Smooths out so very nicely.
 
Hi all,
Before I start pulling things apart, thought I'd get some opinions.

Westerbeke generator - I've had it out of the boat before and know it well. I've recently (months ago) rebuilt the carby too and it has been running great.

I beleive I may have one failed or failing capacitor since it now likes to have some load before it shows it's creating power on the gauge and doesn't like powering the A/C so much anymore!

It is running for 20-30min and then shuts down. I can restart straight away, but it will only run for 5 or so minutes before shutting down (which is why it makes me think it might not be the overtemp sensor)
Waterflow looks fine (I've rebuilt the water pump before too), and I have had it shut down once because of overheating before I rebuilt the pump and it doesn't remind me of that situation, although I won't rule it.

Coolant level is fine, Oil level also good.

Any thoughts before I start getting into it?

Thanks
Dave
Just recapping this. New fuel pump in and replaced capacitors (again) and it looks to be back running fine.
 

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Looking to get a teak cockpit table. What’s a good size? Not too big, not too small.
 
We went oval…and off the top of my head it’s like 36x24. In hindsight, I agree with you that I think the rectangular would work better but size-wise I think it’s good.
 
Hey all- wondering if any fellow 1998 model year owners have done a transducer swap? I am still getting decent depth readings but no speed with the originals. Would like the get a smart transducer. Any thoughts, suggestions, warnings?

Thanks in advance,
C
 
We have just purchased a 1996 370DA. I would like to remove the salon AC unit for cleaning. How do you get to it.
pull out the mid cabin drawers. You will see the filter there, if there is one. To remove the unit, you remove the drawer box that is part of the cabinet. Get to the top of the unit through the hanging locker above it. flashlights and patience.
 
Anyone know how they originally hooked up the raymarine electronics to sea talk? I'm doing some upgrades and need to know what to look for. I have an old Radar, Raydata (tridata), Raychart, GPS, Autopilot, and VHF. The GPS has already been removed by previous owner. When I removed the Raydata, it undid two sea talk cables. Where does all this stuff go? It's kind of a rats nest. What plugs into what?

I am thinking of just replacing the Raydata with a new Raymarine unit (may update to seatalk ng) or maybe go with a garmin unit. I just have to get a handle on the wiring. Thanks in advance.
 
Anyone know how they originally hooked up the raymarine electronics to sea talk? I'm doing some upgrades and need to know what to look for. I have an old Radar, Raydata (tridata), Raychart, GPS, Autopilot, and VHF. The GPS has already been removed by previous owner. When I removed the Raydata, it undid two sea talk cables. Where does all this stuff go? It's kind of a rats nest. What plugs into what?

I am thinking of just replacing the Raydata with a new Raymarine unit (may update to seatalk ng) or maybe go with a garmin unit. I just have to get a handle on the wiring. Thanks in advance.
First you should plan on what you are going to do before you start ripping stuff out unless you have no intention of keeping any of it. Have a look at my current helm. It is a mixture of old and new, and suits my purposes just fine for my cruising habits on this boat.
 

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First you should plan on what you are going to do before you start ripping stuff out unless you have no intention of keeping any of it. Have a look at my current helm. It is a mixture of old and new, and suits my purposes just fine for my cruising habits on this boat.
Nice diagram. I'll probably be simpler than that. Sorry long, rambling, post coming.

Previous owner removed the GPS and replaced with a Garmin 742xsv unit. I am replacing the radar with a Garmin 8610xsv unit. Plus the Fox Marine gateways. So those will all run on a NEMA network with the two garmin units connected by ethernet. That's the "easy" part.

So that leaves a working autopilot, a dead Raydata (tridata), a raychart which has no use (not even sure it works), and the working VHF radio. I have no issue having the old raymarine stuff disconnected from the NMEA network. Obviously I want to keep the auto pilot -- don't need navigation, just set a heading and go. This whole issue comes up because I am thinking of replacing the Raydata unit -- I like the idea of large depth numbers. I could try to find a used unit with the old sea talk connections and hope for a simple plug and play. Or I can update to the Raymarine I50 tridata unit -- looks like it would use the current depth/speed transducer hookups, but comes with the newest Seatalkng connections. Sounds like I would have to covert to the sea talk hub to even get power to the device. If I convert to seatalkng via the hub, what domino effect does that have on the autopilot? Not sure any of this makes sense.
 
Nice diagram. I'll probably be simpler than that. Sorry long, rambling, post coming.

Previous owner removed the GPS and replaced with a Garmin 742xsv unit. I am replacing the radar with a Garmin 8610xsv unit. Plus the Fox Marine gateways. So those will all run on a NEMA network with the two garmin units connected by ethernet. That's the "easy" part.

So that leaves a working autopilot, a dead Raydata (tridata), a raychart which has no use (not even sure it works), and the working VHF radio. I have no issue having the old raymarine stuff disconnected from the NMEA network. Obviously I want to keep the auto pilot -- don't need navigation, just set a heading and go. This whole issue comes up because I am thinking of replacing the Raydata unit -- I like the idea of large depth numbers. I could try to find a used unit with the old sea talk connections and hope for a simple plug and play. Or I can update to the Raymarine I50 tridata unit -- looks like it would use the current depth/speed transducer hookups, but comes with the newest Seatalkng connections. Sounds like I would have to covert to the sea talk hub to even get power to the device. If I convert to seatalkng via the hub, what domino effect does that have on the autopilot? Not sure any of this makes sense.
kindof. Draw a picture of where you think you want to be, and then we can collectively connect the dots. Note that the Seatalk hub in my pic takes both ng and classic seatalk. It has a yellow connector, and a matching drop cable that is the big 3 pin moon. I didn't see an autopilot head unit in your mix. what is controlling it? the Garmin via 0183? the raychart? You need something to tell the autopilot to engage, or standby, or goto.
 

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