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The Norfolk Broads Forum / Broads Boat Owners Q & A / Maintenance (Cooling Systems)
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Posted By Discussion Topic: Maintenance (Cooling Systems)

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Dr-Diesel
Dec-19-2004 @ 8:39 PM                           Permalink
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I bought an Aston Concorde about 2-3 months ago and have it moored up at Wayford Bridge. I am a heavy vehicle engineer by trade so I'm not too worried about maintenance on the boat. My biggest problem at the moment is trying to understand the workings of the cooling system. As I see it at the moment, the engine cooling system must be sealed as the header tank has anti-freeze present, however there is a pump which draws water from the river which then goes all round the boat, exhaust/hot water tank??

I am sure someone on this site is very familiar with this type of set up and can either point me in the right direction with regards to a literature source or can give me an insight into the priniciples.

many thanks

Regards

Paul

Phil
Dec-19-2004 @ 9:18 PM                           Permalink
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I too have an Aston Concorde kept at Stalham, if your cooling system is the original, the same as ours, the river water is pumped only into the exhaust, this is  to keep it cool and make it quieter.
The sealed engine cooling system, with anti freeze, goes through the hull into a row of pipes like a radiator on the bottom of the boat, this then means that passing river water cools the engine water as the boat travels, called keel cooling.

The other method employed on boats is where the river water goes through a heat exchanger as well as through the exhaust, the engine cooling water passes through a water tank much like an emersion heater in your housse so that the hot engine water heats your domestic water, it then passes into the other side of the heat exchanger so that the river water cools it down.
I hope this is of help & clear enough

Did you buy the Concorde from Horning?

Phil
Dec-19-2004 @ 9:38 PM                           Permalink
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By the way Paul has anyone told you about the Seamaster owners club? we are members, you could also join as the Concorde is actally built on a seamaster 30 hull.
The club web site address is www.seamasterclub.co.uk it is useful for gaining information about the boats. We have a norfolk section and have various cruises and events throughout the year where you will meet owners of similar craft to compare notes and swap info.

Cheers
Phil

Dr-Diesel
Dec-20-2004 @ 7:20 AM                           Permalink
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Phil,

Thanks for the Info, it makes much more sense now. Yes we bought it from Horning NYA. Have you got yours moored at Richardsons? and were you painting your hull blue a couple of months ago?



Regards

Paul

Phil
Dec-20-2004 @ 8:38 AM                           Permalink
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Yes Paul, that was me! Did you speak to us? I can't remember anyone saying they had a concorde, although lots of people spoke to us who were looking at the boats that are for sale.

Where abouts at Wayford are you moored? Have you much work to do to her? We had to rebuild all the deck as she had been kept on the Ouse & damaged badly in the locks.

Cheers
Phil

Dr-Diesel
Dec-20-2004 @ 7:53 PM                           Permalink
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Phil,

Its such a small world, you were being supervised by your missus, then it dawned on me that your boat was the same as the one for sale at Horning. I think you even said you had looked at it but the wood in your one was better.

I have it moored at Wayford marina.

I don't have too much work to do on it the survey was pretty good. There was a problem at the back end (Corrosion on the Rudder Supports) which had to be put right before I took it up to wayford. I have done some electrical work and fitted a new heater system, I haven't seen a webasto of that model since 1978, so I fitted a mikuni heater which works very well.

I have been up every weekend since we got it and its proving a great distraction at the moment, I amost forgot about christmas.

Did you get your hull finished without it raining in the end?



Regards

Paul

Phil
Dec-20-2004 @ 8:26 PM                           Permalink
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Paul

Yes I managed to finish it ok, no rain at all, it looked lovely but not so good now, I have had it lifted out for winter & it has been damaged quite badly!! Richardsons say they will repair it for me. I hope to visit soon so I'll have a look at their cover up job then.
What is the registration number of your boat? have you looked on Craig's web site database www.horning.org.uk/boats to look at it's history? It's a great site full of useful info.

Phil

Dr-Diesel
Dec-21-2004 @ 7:21 AM                           Permalink
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Phil,

My boat is G822 Martha II, dodgy name but the missus has got used to it now and likes it. I wanted Piston Broke but was out voted. I have visited Craig's site and will send him a photo shortly.

What did they do to your boat drop it or something?



Regards

Paul

Craig
Dec-22-2004 @ 11:58 PM                           Permalink
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Paul,

I look forward to receiving a photo

Craig

Phil
Dec-24-2004 @ 1:09 PM                           Permalink
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Paul

No they havn't dropped the boat, just scraped the lifting slings along the sides of the hull leaving deep score marks in the fibreglass.

Merry Christmas

Phil


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