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Swordfish
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Posts posted by Swordfish
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Hello all,
Can anyone please suggest the simplest way to reduce photos for insertion in a thread. I have used " tinypic " in the past, but it is terribly time consuming when you just want to add a quick photo. I did see a post re this a week or two ago, but can't seem to find it now. Paul
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Hello and welcome, as you have seen, I am quite new here also. It's very good to keep up to date with local knowledge.
Paul
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Thanks for that, Paul.. that we don't need.... how far can we safely go, please?
. Hi, After my recent experience I would not go past Blackfriars Bridge. High tide may be safer, Bishop Bridge is the lowest.
Paul
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Hello Hockham Admiral,
If you go along the Wensum through Norwich, as you get closer to New Mills Yard, the river gets shallow and is full of debris, such as shopping trollys etc. In this location at Easter I wrecked a new prop. and then aquired two woolen jumpers round the prop. Thankfully I could lift the sterndrive to clear the prop.
Paul
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I'm sure this weed cutter must be in very good condition, because of the very few times it must be used !! I wish they would use it more on the Yare and Wensum near Norwich.
Paul
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Hello,
It's very interesting to hear all your views re. petrol verses diesel. I chose diesel because I believed it to be better than petrol for low speed river use. I went down the route of marinising a vehicle engine purely on the basis of cost, but it was a lot of work for me over the winter. The fuel consumption I find quite amazing, but I am running just above tickover. I think the fuel useage will change drasticly when I try to plane the hull ! For this year at least, I expect 90% of my use to be on the river.
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Ah, you didn't say the motor was screwed
In that case anything would be better, I doubt a douprop would make a lot of difference to top end, though it would have better economy and holeshot. Don't forget that the old sterndrive would be geared for the higher revs of the old Chevvy V8 rather than a tourqey diesel lump and that will need to be factored into any prop calculations. Does the motor rev to max when off load?The gear ratio I have is 1.61:1, which was suggested to me as ideal for the diesel, the V8's were not a high reving engine. I did use this ratio in the prop calculation, plus I bumped up the weight of boat ( to allow for the beer on board ) I have not checked the max off load revs. I will do it this weekend. The engine was re-built, injection pump serviced and calibrated etc. before installation. At 1100 RPM, 6-7 MPH, I'm using just over 1 litre per hour, that is quite amazing compared to the V8.
Paul
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http://www.castlemarine.co.uk/pitch.htm
this might give you a pointer??
Thanks for the link, I have just done the calculation, with the resulting prop size 15.75" X 11.75" I have a 15.50 X 15 at present on the boat so it does explain the low revs and therefor lower power output, particularly from a turbo / intercooled diesel. The suggested max speed is 20.50 MPH, I will be happy with that.
Paul
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Hi Antares,
My boat is the model before the 2556. It's the 2450 Command Bridge, 8' beam with the Volvo engine and drive. My V8 was totally worn out, it would only achieve 1500 RPM with compression readings from 30 - 45 psi ! It seemed more sensible, as I had to change the engine, to go to diesel. The guys in the States say if I change to the duo-prop drive it will make a big difference.
Paul
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It really depends on whether the boat still performs in the manner you want it to imho, if you want a planning boat and the diesel won,t get you over the hump, then it,s not good if you get what i mean
I'm not sure how the speed is yet, it's great on the river at displacement speed. I had to guess at prop size, but I got it wrong and can only get 2400 RPM, when the engine should rev. to 3600. I am hoping the boat will just plane when everything is sorted.
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Hello,
You may have seen my post as a new member last night. Do any of you have views regarding changing from a petrol engine to diesel ? I caused many members of the Bayliner site in USA to question my descision last winter to remove the 5 litre V8 petrol engine and replace it with an Isuzu 2.8 turbo diesel. I am very pleased now, runnung costs are almost nothing when compared to the thirsty V8.
Regards, Paul
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Welcome Paul, hope you find the place useful and fun.
Thanks Antares 9, I found the site some time ago, but only just got round to registering. It will be good to be part of a LOCAL boating community, compared to my posts in the Bayliner Owners Club, USA
Paul
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I have just registered as a new member, not new to boating, started over 35 years ago, but have not used the Broads for some ten years until buying another boat recently.
Regards, Paul
In that case anything would be better, I doubt a douprop would make a lot of difference to top end, though it would have better economy and holeshot. Don't forget that the old sterndrive would be geared for the higher revs of the old Chevvy V8 rather than a tourqey diesel lump and that will need to be factored into any prop calculations. Does the motor rev to max when off load?
What do you miss most
in Broads Chat
Posted
Seeing dredgers and weed cutters at work is probably a thing of the past. We went into Norwich with some friends on Saturday, they were quite disgusted at the condition of the river.