Late 90's 270 Sundancer Thread

I saw a new leak and wonder if it's a common occurence. It's on the port side right beside the divider the separates the mid-berth area with the dinette area and aft of the dinette window. Seems like it coming from the aft end of the storage area. It's not super close to a window which makes me wonder where its coming in from. It rained before I arrived.

IMG_2390.jpg


IMG_23911.jpg
 
Thanks Mike. Would I be delirious to assume it’s only a matter of removing the interior screws on the perimeter of window to disassemble the two halves of the window?

Also I have been searching the web today in regards to resealing the windows. Seems like the Taylor Made port windows have an inner rubber gasket that should be replaced upon removal – sound right?
 
I am trying to figure out how I change my fixed rear seat into a folding seat like this picture.

Has anyone changed their fixed rear seat to one that folds away?

This pic is from a 1999 270 DA and mine is a 1998 270 DA and I do not know if this was an option in 1998.

Ron Mason

1999 Sea Ray Back Seat Folded.jpg
 
I am trying to figure out how I change my fixed rear seat into a folding seat like this picture.

Has anyone changed their fixed rear seat to one that folds away?

This pic is from a 1999 270 DA and mine is a 1998 270 DA and I do not know if this was an option in 1998.

Ron Mason

I have not seen a seat like that on any 270s that i have come across. mine is certainly not like that. would this be custom?

john
 
Just guessing here but is that the seat from a SE model? I'm looking at the power cord on the side and not going into the "trunk". The SE models did not have the trunk.
 
It sure looks like there is room for the seat in my DA model to fold up.

But I did not pay any attention to if it was a DA or Express model.

I will narrow my search for a pic from a DA model.

I gather that neither of you has a fold up seat, so maybe I cannot do it on a DA model?

Thanks!

Ron Mason
 
Ron, don't mistake the SE model for an Express. The SE was a "more basic" version. Narrower beam, different transom, not as many standard features. I know theere is more to it and it has been brought up and documented by others on here more knowledgable than me.

What I noticed from the pic was that the transom looks more like a 250DA of the same era. Go to the Sea Ray site and look into the model archives. It will show the ads for the boats. The 270 had 2 models at that time frame, The DA and the DA SE.
 
Just curious what most of you guys cruise at in terms of rpm/mph. I find myself around 4,000rpm and somewhere near 22-24mph.

Would love to hear about someones experience with a flow meter for optimal fule economy.

I have the 7.4 with a Bravo II.
 
4000? At 22 23 mph. Is crazy. It's a big block. Not mental to be run at high RPMs.erskine is only about 4600. Before I changed my props I had 22pitch and would cruise at about 3600 at about 25 26 mph burning about 13 gph.. (my estimate no flow meter) this is with Half water empty holding and 3 quarter fuel with 4 people aboard. I changed over to 4 blade 20 pitch and can now stay on plane at 3200 at 23 mph. With same load. Burning about 10.5 gph. The props were 1200 but so far the best investment I've purchased so far. I would check your props for chips cracks bends dings ect. 4000.just seems way to high and way to slow. I'm doing about 31 32 at 4000. If you got the extra cash switch to 4 blade. world of difference. I just read your setup. I am a little different 7.4 but with bravo 3 so I'm not sure how big a difference it would make. But still don't sound right.
 
Btw. If your going off your mph guage it's more than likely wrong. You need to use a GPS. And if you are using GPS make sure your not reading in knots and getting confused. I did it for months before realizing it was reading in knots not mph. I was trying to figure out why I was going so slow lol
 
I am trying to figure out how to remove the port side lounger seat back bolster from my 2000 270 DA. I am going to put the aluminum arch back on that the previous owner took off to avoid bridges near his house, but I need to get into the space behind the bolster. Does anyone know how the bolster comes off?
 
I am trying to figure out how to remove the port side lounger seat back bolster from my 2000 270 DA. I am going to put the aluminum arch back on that the previous owner took off to avoid bridges near his house, but I need to get into the space behind the bolster. Does anyone know how the bolster comes off?

There it's a very detailed post on how to remove it. Pictures and everything I just need to find it. I dO now you have to remove allot of cabin
panels to get to the thru bolts behind the seat
 
As others have mentioned please verify your speed via GPS because if that is accurate you have a problem. You shouldn't be anywhere near 4000 rpms as a cruising speed on a 7.4 - 3500-3600 tops. And your cruise should be 25mph at least.

My 270 was repowered with a 6.2mpi - same HP/torque but at a much higher rpm range. Now that I have my B3 gear ratio closer to where it should be (long story) - I cruise at 3750/26-27 mph and I get between 1.7 and 1.9 mpg.
 
I am trying to figure out how I change my fixed rear seat into a folding seat like this picture.

Has anyone changed their fixed rear seat to one that folds away?

This pic is from a 1999 270 DA and mine is a 1998 270 DA and I do not know if this was an option in 1998.

Ron Mason

View attachment 25688

It is from a SE - I have one. Here is what is looks like opened up (excuse the dirt - pix taken before cleaned).

270 SE.jpg
 
So I went again this weekend. Crusing around 3,400RPM gave me about 22-23mph. I still don't know what prop the PO has on the drive. Even with the drive in Trailering mode it's not enough to get the prop out of the water enough to see any stampings. He did give me a newly reconditioned 21" prop I may slap on to see the difference.
 
Its tough to tell whats going on by trying to compare cruising speeds. You need to get out on the boat, lightly loaded, open it up, trim up, and find out what your top RPM/SPEED is.
 
Okay - finally had a chance to test at WOT. 1/4 tank of gas, 1/4 fresh water and only 2 people on a fairly calm lake. 4600 max RPM gave me about 33mph. I also pulled the prop and learned it was a 21 pitch. I know the OEM is a 23 pitch 17.5 prop. I am leaning towards getting the stock sized prop and try it. I just wonder why the PO had TWO (primary and spare) 21 pitch props. Something must have made him favor the lower pitch prop.

Any thoughts on why a 23 is not ideal? Are you guys running 23's?
 

Forum statistics

Threads
112,950
Messages
1,422,902
Members
60,933
Latest member
juliediane
Back
Top