Thinking of buying a sealine 290 ambassador

i know of a nice new Sealine thats...... /forums/images/graemlins/frown.gif /forums/images/graemlins/frown.gif
it IS a brand new model so you would expect a few problems /forums/images/graemlins/tongue.gif
well they are suuposed to be sorting out the rest of the problems this week /forums/images/graemlins/smirk.gif

with the number of boats they make there will always be a rum one
 
I'm averaging about 1.0 to 1.1 gallons per hour at river speeds from a 320hp Volvo petrol engine in a Jeanneau Leader 805.

Then again, my main form of propulsion is the bow thruster.
 
welcome, seems everyone is complaining about the cost of petrol boats. seems to me that to own a craft s an expensive hobby within itself. ive got a princess 266 with 4 cylinder petrols and its as expensive as you make it. my consumption is around 10 galls a hour with both engines at 27 kts and if you get a big engine the top speed and the consumption will multiply ie v8 35kts 20 gall etc. but large engines ticking over at 5 kts, the consumption will be small, larger engines the less work produuced/ less petrol used. for a river use i think a boat doing 8 knots will be quick and not always posible. i have no complaints with my petrols and in the view of possible diesel chages in 06 then watch diesel craft prices reflect that. petrols are as good as there maintance provided. the engines are glorified car engines with different gearing and otherbits and are not that complicated. second benefit being car engines marinised the spare market is huge. hope this helps

chris
 
Had one with twin AQ151 petrols and got 18 GPH at full pwr, around 12 GPH at 20 know cruise. Traded up to Sealine S28 with twin 150HP Diesels and get 9 gph at cruise (22 knots) and its around half the price for a gallon
 
Used to run a Princess 266 Riviera with twin Volvo AQ431/dp 4.3 litre V6 205hp petrol engines.

Boat did about 12 gallons/hour at fast cruise (used to cruise at about 27 knots)

Of course it would use a hell of a lot more flat out, but at 43 knots it didn't take long to get where you were going!!! /forums/images/graemlins/laugh.gif

Fabulous boat, and the petrol engines suited it well.
 
Thanks for all the great advise, much appreciated. I have been to see the boat again today (with the mrs) and asked a few more questions. Seems the boat will do approx 1 to 1.3 gph at river speed and 10 to 20 gph fast cruising. From the info you lot have given this would ring true. I have paid a deposit (refundable) and will be taking it out for a spin Wed / Thu. All being well (full survey etc) I hope to see some of you on the Severn very soon.
/forums/images/graemlins/grin.gif
 
[ QUOTE ]
Thanks Simon. Thats good info, appreciated.

Only thing that worries me now is how to get the petrol to the boat! What is the easiest way to fill her up if the Marina doesn't stock petrol......2 or 3 x 5 gallon drums at the petrol station? Daft question, I know, any advice?

[/ QUOTE ]

Use 5 gal plastic outboard tanks and an outboard fuel line plumbed into a proper fitting on the main tank (my tank has fuel fittings for twin engines - I just plumbed into the spare one), each tank will gravity drain into the main tank with no spills, mess or fumes, whether you are stationary or at 30kts....good way to extend the range of a petrol boat if required too. If you want a faster xfer you could put an electric petrol pump into the line to speed things up....
 
You may be about right with this consumption figure. I have just done a 4 hour trip in a 27footer with a 150hp petrol and it was at 8 knots 3000rpm all the way. 5gph! That was at sea too so the engine would be working harder. Boat should have been running on two 150hp petrols and doing over 20kn but thats another story.

Hope this helps.

JH
 
You like driving that Falcon on one engine don't you? /forums/images/graemlins/crazy.gif

Presumably you could at least steer this time?
 
Yep.....

Taken a load of advice about running at displacement speeds and using half the fuel and half the maintenance.

I'm used to single engine so now I have a single and a spare!!!

The post to Simon explains it, but yes I could steer this time and I have found whats causing the problem with the steering so I can fix it over the winter when she comes out.

Cheers

JH /forums/images/graemlins/cool.gif
 
[ QUOTE ]
It may surprise you to learn that I don't burn 20 flippin' gph all the time. For a start, every trip I do has 5 miles of trundling through Chichester harbour at about 4-5gph.

[/ QUOTE ]

Sorry, I just took the figures from your post here :-

http://www.ybw.com/forums/showflat.php/Cat/0/Number/818799/page/4/fpart/2/vc/1

Quote "I burn about 22gph and the engines are only doing 2100rpm compared to the piston thrashing 3500 that the 42s do"

Blimey what does it do per hour when you are doing 3000 or 4000rpm /forums/images/graemlins/shocked.gif

Can you let me know how many hours you have done this year for your £1,500 of diesel, then I can work out if I could run a boat like that at £1.50 ltr. Seems a lot of the hours on yours are trundling in and out of the wretched harbour /forums/images/graemlins/crazy.gif
 
Re: So you want the story then??

Ah now....there is a question.

No actually we left Plymouth with both running beautifully and drives sounding as sweet as a nut. The boat was sat at 20knots. Had her going for about 1/2 hour and decided to have a look under the engine hatch just to be safe (I'm paranoid like that) Under the starboard engine is about 10 galls of water so we stopped and pumped it all out. (Another job for me, as the engine bay is divided into sections presumably to catch spillage and the ones under the engines don't have pumps) Ran the engine up again and its pouring out the bottom of the sea water strainer where the sea water pump pipe enters cos the seal has blown out. So, whilst my mate stays at the helm and we plod on on port motor, I strip the strainer and connections with the port engine roaring in my ear and cooking me. Put it all back together and still no good, its still coming out all over the alternator and distributor, so my electrics are getting a soaking, as am I.

Had three go's at it and then decided that its not going to hold and the best thing was to plod down on one engine.

Given me a lot of faith in that port motor though as it went 4 hours on its own at 3000rpm and didn't miss a beat.

Ordered all the bits to fix the starb cooling system now though. Going to go right through it from pump to exhaust elbow. There is a blockage somewhere that is putting a back pressure on the pump and that is what blew the seal out.

More annoying than a real problem.

Starboard Engine is fine though as I dried it all out, cleaned it all and got a decent dose of WD40 into everything then ran it up to check whilst catching the leaking water.

Still happy with the boat though and getting her back into Falmouth was lovely. Great sense of coming home as we rounded St Anthony head. Actually, I really enjoyed the trip even if we did have a problem to sort out.

In truth, I think I have to expect a few things like this as the boat hasn't had a lot of use in recent years and the previous owner was an ex raggie who really only pottered at up to 10 knots.......I asked him what she was like on the plane and he didn't know what I meant ........absolutely true /forums/images/graemlins/grin.gif /forums/images/graemlins/grin.gif So I guess with me pushing it a bit harder, things that may not have failed at pottering speed will start to give a bit.

She will get a thorough going over during the winter and anything that looks even slightly worn will get replaced.

She's going to be a great boat!!

So there you are.....the story of the "Audacious" delivery trip.

Give me time over the winter to give her the TLC and "Callisto" treatment that she needs and things like this will be history /forums/images/graemlins/laugh.gif

Cheers

JH /forums/images/graemlins/cool.gif
 
Thanks, I guess if that is the case he would be looking at about 32 - 36gph at 2800rpm even at only £5 a gallon that would be £180ph /forums/images/graemlins/shocked.gif Maybe if it was re-engined with new quiet 8.7ltr petrols it would sell quick /forums/images/graemlins/laugh.gif
 
I have had a Sealine 290 with Aq431/DP petrols for 2 years now and in the first year we used around £1600 worth of fuel, going out most nice weekends sometimes only to the nearest bay other times on a day out. A lovely boat and comfortable too. my better half doesn't like much over twenty knots so a 17 knot cruise suits her and me, we aren't in a rush. The fuel can thing is a real pain, we tried it but got fed up lugging them to the boat so i use either of my two local petrol stockists and pay the premium. Safety wise as long as your fire extuingishers are in date and fuel lines are regularly checked and kept in good condition and we allways use the engine bay fans before starting i don't have a problem with petrol its common sense really. After questioning my local Volvo agent about a diesel conversion he replied that he could replace both my petrol engines for the price of one diesel engine. If the price of diesel does treble then not only will the fuel costs be closer but my repair bills cheaper should the worst happen......................
 
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