Official 1998 Sea Ray Sundancer 290 Thread

Strecker25 said:
Prop update. As some of you know I'm trying aluminum 4 blades this year to get a feel for it and save some cash before plopping down a bunch for SS

I have a pair of 14x20 Diamond4 Quicksilvers on now and finally was able to run the boat.

minimum planing speed is now 24.4 mph / 3100 RPM or so. Full tabs, drives tucked.

Comfortable cruising speed is 27.6 mph / 3400 RPM, drives down, no tab needed. At that speed we're getting approximately 1.4 mpg.

WOT is 4500 RPM / 39-40 MPH.

Needless to say, I'm very happy with those numbers. The bottom is a bit dirty because we've been stuck in port for so long (lake ontario levels are 4+ feet high and we have speed limits everywhere near shore) so with a clean bottom we should still be well within the WOT range. Oddly enough the 14.25x18 Diamond4's had a slightly lower planing RPM (24mph/3000rpm) but the boat feels sluggish at that speed so I wouldn't run it there anyways. At 3400 the engines sound great and the boat feels very comfortable.
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When you are ready to get rid of the aluminum props, I may be interested in testing them out. Boat just got fixed today. Been at the shop since April 12th....
 
Will do. Ours will be layed up for probably 2 weeks now. Port coupler completely let go while idling through a channel. I've grown a pure hatred for I/o's
 
Went out on a friend's 2017 sea fox 246 and the wife liked it more than ours, I said wait until there are rough seas and you'll thank god we have an 11,000lb boat that's 6 feet longer and 2 feet wider....
 
So our bilge is FINALLY dry after a rain. Turns out of was a combination of the upper rub rail near the transom, the caulking on the floor between the transom door walkway and the lazarette, and mainly the transom washdown shower that all the caulk had dried up and flaked off.

Not a single drop after 12 hours of rain.
 
Does anyone know how the sync gauge works??
Went out yesterday, and had the sync gauge showing almost all to port motor, and the rpm's were spot on equal on both engines??? This is brand new as of yesterday...
 
my understanding is it has nothing to do with the tachs and is its own module. I believe the actual sync module is behind the dash somewhere. Sorry I don't know much more than that
 
If anyone is on their boat this weekend, could you measure the width and height of your transom locker door please? Ordering new name vinyl
 
Awesome. So the largest flat spot is that dimension, correct?
THANKS
 
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Awesome, thanks again.
How are the new props working?
 
AFD said:
Awesome, thanks again.
How are the new props working?
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No problem. Still really well, did about 1.4 mpg on a 80 mile round trip last month. Just an estimate based on the fill up because I don't have flow monitors, but the boat sounds much happier now on plane.
 
Ok so this MF leak is still happening. It's coming on the port side and onto the batteries like someone mentioned earlier. This is with our aft curtain in place, so nothing is dripping from the cockpit. I can see if coming from what looks like behind/above the blower hose but the generator exhaust hose is in the way from really seeing it. I can't imagine how water could get UNDER the blower cover. The lip is tall and I sealed the seam with gobs of silicone. If I take the rear speaker out the entire cavity is dry, and I put my hand on the blower hoses from inside the aft cabin (took the ceiling piece out) and still can't see water coming in.

My last ditch effort was to reseal the holes where the snaps are for the canvas as water does run over them, but they were pretty tight to begin with.

anyone have any idea how the water actually gets in there?
 
Strecker25 said:
Ok so this MF leak is still happening. It's coming on the port side and onto the batteries like someone mentioned earlier. This is with our aft curtain in place, so nothing is dripping from the cockpit. I can see if coming from what looks like behind/above the blower hose but the generator exhaust hose is in the way from really seeing it. I can't imagine how water could get UNDER the blower cover. The lip is tall and I sealed the seam with gobs of silicone. If I take the rear speaker out the entire cavity is dry, and I put my hand on the blower hoses from inside the aft cabin (took the ceiling piece out) and still can't see water coming in.

My last ditch effort was to reseal the holes where the snaps are for the canvas as water does run over them, but they were pretty tight to begin with.

anyone have any idea how the water actually gets in there?
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I'm trying to picture the battery location..... is the carpeted breaker panel area dry? Are there any fresh water lines in this area that might be leaking?

I just had to change out a push to fit 15mm connection leading to the head because of a leak. It was leaking enough to make a puddle but not turn on the pump.

BTW you remove layers of your boat take pictures and post/share..... would like to see how these boats are put together. Would really like to see the backside of the HVAC before I dig into that location myself.
 
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I have a bunch of pics I'll post from when I re did the windows and tore the aft cabin apart

Carpeted area is dry, inside the arch is dry (pulled off the pad on the arch to make sure, nothing in there)

Only drips when it's raining and I can't seem to duplicate it with the hose, it's very weird. No fresh water hoses leaking, pump never cycles and the water shows up when we're not on the boat as well. It's going to rain this afternoon I'll take a video/pic of the leak
 
Strecker25 said:
I have a bunch of pics I'll post from when I re did the windows and tore the aft cabin apart

Carpeted area is dry, inside the arch is dry (pulled off the pad on the arch to make sure, nothing in there)

Only drips when it's raining and I can't seem to duplicate it with the hose, it's very weird. No fresh water hoses leaking, pump never cycles and the water shows up when we're not on the boat as well. It's going to rain this afternoon I'll take a video/pic of the leak
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Too soon to tell 100% but holy shit it might be finally fixed. I re sealed the aft curtain snaps on the arch, turns out the water from the arch runs like a river over the top of the snaps and was probably filling the blower cavity.


Edit: NO MORE BILGE WATER! It's finally dry after 3 hour downpour. Last piece to seal is he rear of the arch to the plastic valence track, it drips inside the arch behind the speaker.
 

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So on the props. Got her out today in a little bit of a head wind. 3000 rpm, full tab down, drives fully tucked. Took these pictures at 22mph but it picked up speed until about 23. Boat is still way happier at 3200/28mph, but it's nice to hold plane this slow. These are the Diamond4 aluminum 14x20's
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That's great news, how fast does it leap out of the water?
 
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