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WJM last won the day on October 9 2014

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  1. WJM

    reflek flame

    When you are cleaning out the burner pot you need to do this... Take out the catalyser cage. Take a small drill bit or a piece of wire. Reach down to the base of the pot and curl your fingers under the rim. You will find a row of small holes all round the rim - hidden from the eye. Poke each hole clear. You get a better burn when they are clear.
  2. Apologies, it is the SECOND aqueduct from the junction. The one over the Colne.
  3. That is the Slough Arm Aqueduct - the one nearest the junction.
  4. I came across this beauty today. On the bank of the Slough Arm, beside the point where the arm crosses the River Coln. The Coal Taxes were last collected in 1890 but the Slough Arm was opened in 1882. I am wondering, the Coln was regarded historically as a navigation. So it would have had a Coal Tax Post of it’s own. Would this have been a ‘new’ post for the canal? Or an old Coln post lifted up?
  5. Yes, I found it today. The Coln really was navigable. Though the air draft was tight.
  6. WJM

    Fuel Pump

    My Isuzu has an electric pump. The fault has been fixed - and has been for some months now. But since it developed I had stopped going out on the tidal Thames. On my last run up to Teddington it did it's frightening thing and I have not been out there since. But I have had months of reliable canal running now so I am getting ready to go back out. But I wanted to fully understand what I was dealing with in case anything flared again. I have now added an extra tideway safety check to my list. A full fuel tank provides safety cover for a failed fuel pump. It seems that on my boat, the fuel pump is only required when the tank level falls below the level of the pump.
  7. WJM

    Fuel Pump

    It is a very standard narrowboat layout. The rear end of the hull is partitioned off to form a diesel tank, the engine is mounted conventionally beside it. The pump is a small and simple looking device mounted on the side of the engine just downstream of the fuel filter so it must be a lift pump. I had an intermittent problem where the engine would run very irregularly for brief periods and then recover and run normally. After much messing about with filters and other ideas which did nothing to solve the problem, I eventually replaced the pump and the problem disappeared. But it occurs to me now that the problem was identical to what is experienced when the ignition key has been accidentally knocked to off, the engine runs but struggles intermittently. The knocked key is easy to spot - all the instrument dials flop to zero so presumably all the electrics are unpowered - including the lift pump. I generally tend to travel with my diesel tank very full and I carry a set of full jerrycans too. Every time I had this problem of the engine starting to struggle one of the many things I did to recover was to fill the diesel tank back up to full. On reflection, I think the lift pump must have totally failed but as long as the tank was full the pump was not needed. Only when the level in the tank fell to a point about level with the pump did the problem occur. The engine ran at idle but could not accelerate. I am just trying to get my head around what actually happened. And this thread might help others - a temporary fix for a failed lift pump may be to keep the tank full?
  8. WJM

    Fuel Pump

    Thank you for the responses - which generally go far beyond answering my original question. So to be clear, the consensus here is that an engine fuel pump that is disabled (through a fault or through a loss of electric power) will not immediately and definitively cause the engine to stop? The engine can keep running, the fuel can still make it's way through to the injectors? Or to phrase it differently - a dead pump does not necessarily mean a dead engine?
  9. WJM

    Fuel Pump

    I have questions regarding fuel pumps generally. I am asking so that I can better understand a problem that I had with my Isuzu engine. If the fuel pump is is not working at all will the engine still run, albeit run badly or intermittently? And building on that question - if the ignition key is accidentally knocked to the off position would that have the same effect as a failed fuel pump - ie: the engine will still run, but badly because there is no electrical power going to the fuel pump?
  10. The Dunton Windlass - I have one and i love it! OP, Where did you get yours? I would like to get another. I have been told that these are the 'Rolls Royce' of windlasses. literally. Allegedly the casting was done as a piecework job by Rolls Royce Aero Engines in Derby.
  11. I had my boat repainted recently by High Line at Cowley Peachy Marina, which is only down the road/canal from Harefield . The man who did the work is called Paul and he did an excellent job. Highly recommended. Phone number 01753 651496/653151
  12. No, I passed it by river today. There is a structural failure where the two warehouses are joined. I hope this does not become an excuse to demolish and forget. I like to think that these two skeletal remenants are there to remind today’s architects of their heritage. Whatever replaces them must reflect what came before.
  13. I see the towpath in Brentford that passes under the overhanging warehouse is closed. The notice says it is due to a problem with the warehouse. Anyone know the full story? The detour route is massively long, must be over a mile through the streets of Brentford!
  14. It is not just low tide - it is the river during the annual Draw Off. Each November the river is deliberately drained for around two weeks by holding Richmond Weir open and allowing the full range of the tide. Richmond is normally only half-tidal.
  15. Thanks for the responses. Interesting stuff. It seems the navigation was very localised, confined only to moving between adjacent lakes (former gravel pits). On the Google Earth satellite pictures two barges are visible moored up in the Met Lakes and a third barge is sunk in the same lake. These barges must have had a very limited range of travel. If these lakes were formed from flooded gravel pits, was the gravel still extracted after they flooded? (hence the barges to move the gravel?)
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