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Strawberry Orange Banana Lime Leaf Slate Sky Blueberry Grape Watermelon Chocolate Marble
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adrianh

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About adrianh

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  • Gender
    Male

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  • Occupation
    engineer
  • Boat Name
    matilda
  • Boat Location
    kennet and avon

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  1. You need to use latching relays with normally open and normally closed or changeover contacts. These are available either with magnetic latching and have 2 coils or with a ratchet single coil pulse type so do not draw power continuously. Made by Finder or Omron either din rail or 11 pin base. Not designed for switching DC loads so use these to switch an automotive type relay for the load with a back emf diode across the relay coil. Contact if you need circuit/part numbers.
  2. Webasto 90st with a 60 a day habit

    Just remember that any battery only has a limited number of discharge charge cycles made worse by heavy use and persistent under charging. A figure of around 200 full cycles is not unusual . If you can operate with 2 batteries used on alternate days you have a better chance of recharging them
  3. Webasto 90st with a 60 a day habit

    That battery voltage sounds a bit low to me. Have you tried a new heavy duty say 150 Ah battery. You need to check voltage at the input to the Webasto. I have recently seen a new example of this unit all wired with 2.5mm domestic cable through the cheap red type isolator. This resulted in a large voltage drop and frequently cause ignition failure then lock out.Boat service people locally could not reset unit so owner had to pay a premium with manufacturer twice . One more thought, have you got some sort of seal fault on your fuel tank that results in the pressure inside rising when hot and pushing the fuel into the burner above the designed flow rate
  4. Leaking window

    If you are buying new foam it needs to be closed cell type otherwise it acts like a sponge and does not seal. My windows have O ring cord on the inside seal and low level drainage slots that takes any internal water back outside.
  5. A motor with seals etc suitable for submersion will be very pricy, 1k plus I expect. I have seen Danfoss motors used directly fitted into old wooden rudder. Only last a couple of years until moisture ingress destroys bearings and let's them leak oil into water way. As far as I remember Anglian use an angled Denison piston motor, similar to Voac . Cost 2k ish or more and not easy to get
  6. I may be able to help with this re pump flow etc. Use to design/build industrial systems so have plenty of tech knowledge. Have seen a few systems, you can use a fixed displacement pump / motor setup ( cheapest) or variable displacement. Either way it is likely to be more expensive than a standard say PRM setup. PM me for contact details
  7. Willis / Belfast / External immersion heater

    I see no reason why this should not work although you may need a circulating pump. If you want the immersion heater to last you need an incoly element as these are better resisting chalk and corrosion, although more expensive.
  8. Insufficient heat from Stoves Vanette oven

    How old is the gas regulator? Has the static and flow pressure been checked at the cooker with the oven firring? Check the gas pipe for physical damage or crushing. Replace the flexible to the cooker ( if fitted) and at the bottle for a new one in case they have degraded inside. If the system is very old you may well have a problem with the gas tap being gummed up, fixable if you have the knowledge. If you have to buy new, without changes you may be lilimited for choice. If it is fitted under the gunwall even worse if a lid is fitted. Bought an lpg convert able cooker from curry s last year then had to swap for a motor home type when replacing my vaneette
  9. Notice board type locks.

    Try RS they have a range of panel locks that are of this type. They all need to be fitted in a double d shaped hole to stop the lock body rotating.
  10. Determining prop nut size

    If you are buying a forged mass produced nut beware that the threads are not necessarily true/square to the face. Not good if you want to avoid stressing/bending the thread. I always buy a proper fully machined nut to ensure accuracy in this application, standard Metric are OK although BSW are hard to get and BSF or non standard Metric impossible.
  11. Determining prop nut size

    I have just purchased a brass nut from Scottish Propeller Service Ltd ( falpropellers.co.uk). They are very helpful and have stock or manufacture quickly. They also have castellated nuts I would expect the thread to be BSW unless you have a fairly new shaft - possibly 3/4 or 7/8 inch. If you are measuring a thread the diameter will be less than the actual thread size, for 3/4" expect something like 0.730 inch diameter. You will probably need a good heavy washer machined to go between the Prop and the nut if the nut hexagon is small compared to the propeller - I can help you if you are stuck for this.
  12. Master Switch Sizes

    Force 4 and Marathon Leisure are listed on Google as Blue sea when you search blue sea electrical
  13. Where can I get electrical plugs like these?

    The best you can probably use now are 1/8 short split pins with some sort of insulated cover. I remeber this shop well. May have suitable pins. Pm me for phone number, live locally to you.
  14. Boat Surveyor recommendations Bath/Trowbridge area

    Ring Semington Dock, they can probably advise you
  15. Mooring in Bath

    The area with chains attached to the piling all abuts industrial land or land currently being developed so is not accessible. Mooring on the river sides (chains) close to the city is regulated by the council who do not want boats. Other locations are controlled by CRT who are under pressure to move the squatters from the visitor moorings so that all can use them. No additional fencing has been erected to prevent drowning - the fencing along the lower wharf area is due to the current development work which has also reduced visitor moorings by about 40%. Having just visited Bristol we found that all the visitor moorings along the river were full of squatters and had difficulty mooring above Hanham lock prior to getting permission to enter the tidal section into Bristol.
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