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Got a technical question or a boating query? Post your quandaries here and pick the brains of the WW team. You can also add your answers to others' questions, or browse through previous answers.

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Narrow Boat Gear Box

I have a 60ft narrow boat with a Vetus
M4.17 engine and a Vetus Technodrive gear box which is very clunky and noisy, I also think that the drive plate is starting to go, as it seems to be making quite a bit of noise.
So I was thinking if I changed the drive plate should I change the gear box as the Technodrive type does not get any praise in forums.
I have read that PRM gear boxes are very good but what size would I need, also are there other types of gear boxes just as good as the PRM type. Your comments would be much appreciated.

Asked by: boatfitout  | Thursday 14 November, 6.04pm | 2 answers


Heating

Which would be the best heating for a 63 ft boat , gas or diesel

Asked by: David Siverns  | Thursday 14 November, 12.47pm | 2 answers


fabric cratch cover cleaning

Just buying a 40footer with front and rear black cratch covers. The covers are clearly good quality and condition apart from the surface 'greening'. As it looks like its been sometime since these were last cleaned I'm thinking of powerwashing initially to get this off. Is this the right thing to do or should I use muc-off type cleaner?
thanks for any tips
John

Asked by: John Naylor  | Tuesday 5 November, 10.46am | 4 answers


Narrowboat painting

Our 50 foot cruiser stern narrowboat will need painting next year or 2015. Some painters I'm talking to for estimates, etc. say they'll use spray paint, others hand painting.
Is one better than the other? What would you recommend?

Asked by: Paul Taylor  | Monday 4 November, 6.56pm | 2 answers


Increased water storage

I've been thinking about solutions to increase water storage on a liveaboard vessel, to limit water refill trips. Ideally a solution would double water capacity of a standard craft, e.g up to 300 gallons).
2 scenarios:
1. Refitting an existing hull with 'normal' size water tank built into bow.
Options:
Extend existing water tank back into hull so weight is balanced on both sides of hull. Requires lots of metalwork.
2. 2nd plastic tank somehow connected to 1st. Any ideas on how to get that to work reliably? Not so keen on this approach but maybe somebody knows how this could be made to work?
2. A new build hull with an increased size water tank. Again I guess the tank could extend back into the interior of the boat.
But maybe there is a way to centralize the tank.
Or maybe the bow can be designed so the whole space can be used for water. e.g if the boat has no gas so there would be no need for gas lockers.
Just looking for an expert's thoughts.
It may well be 'forget it'!

Asked by: Paul McMahon  | Monday 28 October, 1.40pm | 6 answers


loss of coolant fluid

My isuzi 35hp has just started to loose coolant fluid. The engine does not show overheating. It has 550 engine hours. Recently completed a 2 week holiday with no problems. After 2 weeks without running we now have a large puddle of coolant under the engine after 1 hours use. Why might this have just suddenly started and what may be the causes? How can I fix it? thanks Heather.

Asked by: heather dawes  | Friday 25 October, 6.50pm | 2 answers


Fitting Prestolite alternator to Shire 2002

I wish to fit a Prestolite 90A alternator to my Barrus Shire 2002 canal boat engine. Unfortunately the rear end of the prestolite will foul the waer cooled exhaust manifold. Some time ago on this forum someone had the same job done professionally. He too was worried about this problem but the professional installer got round it. Any ideas how? Has anyone else done this mod for themselves?
John Spicer

Asked by: John Spicer  | Friday 25 October, 4.38pm | 2 answers


Thornycroft RJ2

Hi There,
This is a bit of a long shot as I am aware that there are very few of these engines in The U'ÄčK'Äč.
I recently bought a narrowboat and it has a 1937 Thornycroft Rj2 onboard but we need some new pistons,as ours are damaged, do you have idea where I may get my hands on some?
My number is 078 777 16702.
Would be great if you could help me out.
All the best and looking forward to hearing from you.
Shane

Asked by: Shane Dempsey  | Tuesday 22 October, 3.11pm | 2 answers


Engine oil change

I had a full engine service in May 2013. I have now finished for the year and the boat is in a marina. If I myself using the hand pump supplied with my Vetus M4.17 engine change the engine oil and filter now, do I need to change it again in April next year. The oil will only have sat in the engine sump for 5 months and should not have lost any of its viscosity or has more changes throughout the winter occurred to effect the oil, what would you advise please.

Asked by: David Anderson  | Monday 21 October, 2.18pm | 2 answers


widebeam

Who are the best wide beam boat builders?

Asked by: Tony Spruce  | Saturday 19 October, 7.54am | 4 answers


ballast

How do boat builders know what weight of ballast to put in the bilge so that the boat floats level and the right depth. I understand they know weight of most things in engine room but their are many other facts to take into equation.

Asked by: Mr Vernon Whitehair  | Friday 18 October, 9.19am | 1 answer


fuel in bilge

Hi,
I appear to be getting some fuel in my bilge water. What might be wrong?
Thanks,
Celeste

Asked by: Celeste  | Wednesday 16 October, 7.23pm | 2 answers


Galvanic Isolator Inneffective

I had my hull surveyed a few months ago which showed quite a lot of corrosion pitting. I was concerned that this will continue to happen, so I fitted a new galvanic isolator because I was getting strange readings on my multimeter across the old galvanic isolator. I still get strange readings, and after much checking of my boat's system, eventually I connected a cable directly to the shore power socket (with live & neutral wires made safe) and measured the resistance between the shore power electrical earth and the boats hull. This was 160 ohms. As I was expecting a reading of 'infinity', or close to that, 160 ohms is a surprise. There are no other connections to the shore, other than the (dry) nylon ropes and the (rubber) fenders.
As there is clearly a bypass round the galvanic isolator, it will do nothing. Do you have any clue as to how I can electrically isolate my boat from the earth?

Asked by: FlatBattery  | Sunday 6 October, 6.32pm | 4 answers


info on making my 25`grp hulled cruiser into a narrow boat

I have a 25` in-board 60hp engined cruiser not sure of make as when I bought it the chap had a bespoke ply and wood housing on top,with low hight bedroom and loo with a step up into the steering part, as I will not be taking it to sea would like to make it more like narrow boat inside with living space any thoughts would be good or design ideas better thanks

Asked by: Rab Mcleash  | Friday 4 October, 5.36pm | 2 answers


Batteries

Bought five 110 leisure batts two years ago. I am mostly in a marina with shore power and the charge showing on the monitor is 105, having been out for 6 weeks I run engine for 3hrs, monitor shows 40-50%, when engine is turned off batteries will slowly rise to 80%, at night I turn everything off, except fridge, and monitor shows 55-60%, in morning it reads 0% and have to run engine to get it up to 80%. Is this a sign that I need new batteries? If so, what type? Maintenance free? Gel? Cheap ones every 2 years? Any advice welcome. Many thanks.

Asked by: Anthony Burnell  | Thursday 3 October, 10.12am | 1 answer


Gear box

I have 120 gear box on 35hp isuzi engine when i have been cruising for about 3 to 4 hours it will not go into forward gear after slowing down in reverse,can you HELP.

Asked by: Eddie Kingswell  | Wednesday 2 October, 9.56am | 3 answers


Aldi boiler

I've got an Aldi boiler that has a very slow water leak in the state somewhere. I will get it fixed soon! But, in the mean time, how do I top up the system? I can't see a header tank or anywhere obvious to put water and antifreeze in to it?

Asked by: Carl Young  | Thursday 26 September, 1.27pm | 3 answers


Inverter question below

Further to my question below about the inverter showing a fault when the engine is running
I've got a victron monitor which says that the voltage going in is 14.84. So, a bit over the 14.5. Is that enough to tip it over?
What can I so to reduce the voltage?
The engine is a year old Beta 38 with 120 hours on it and under guarantee.

Asked by: Carl Young  | Thursday 26 September, 1.24pm | 5 answers


What depth should the rudder be?

We bought a 10 year old 58' semi trad narrowboat for cruising this year which had previously been used as a liveaboard in a marina, complete with washing machine. Now that the boat is lighter, it has been commented that the rudder is not sitting as deep in the water as it should. What depth should we be looking for and how can we achieve it? Also, what power will we need to run the washing machine whilst cruising, or do we need to remove it (which will make the stern even lighter). Thanks

Asked by: chrissy  | Monday 23 September, 10.47am | 3 answers


Inverter doesn't work with engine running

I've just replaced my 3000w modified sine inverter with a 5000w pure sine. Brilliant, it runs my PS3 and espresso machine, which is why I bought it. I thought all was well. But, I took the boat out today for the first time since fitting it and as soon as I turned the engine on, the inverter threw up a fault light and stopped working. Turn the engine off again and it's works perfectly. What's going on? How does it even know my engine is running when its drawing power from my batteries (5 x 110a all new). The 3000w ran perfectly. Thank you.

Asked by: Carl Young  | Sunday 22 September, 3.00pm | 2 answers

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