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Ryeland

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Posts posted by Ryeland

  1. I had the same experience,  apart from the leak not starting suddenly. I replaced the shaft bearing, a rubber cutlass type in my case, prop shaft and seal in a few hours with a single day pull out on Stafford Boat Club slipway. And yes, moving the prop shaft slightly gave a temporary improvement. 

    Richard 

  2. Open today, asked the workers whether they intended to close it later in the week,  they said 'no'. Minor annoyance that one of the top paddles was fenced off for no apparent reason, very difficult to make a level and open the top gate.  Needed four people!

     

    Richard 

  3. I have a Volvo Penta seal very similar to the RMTA one, but no hose. Same as Jen-in-wellies. A cloth tied round the shaft stops enough water to allow the gland to be loosened, and the shaft to be inspected. I found the gland had worn grooves in the shaft, admittedly after several thousand hours.  A slight movement of the shaft in the coupling improved leakage temporarily. I ended up replacing the shaft, cutless bearing and gland on a one day slipway pull out at Stafford Boat Club. If the prop shaft can be slid back far enough without fouling the rudder, just the gland could easily be replaced with a cloth round the shaft. My new gland came with a sleeve to allow it to be easily slid onto the shaft without damaging the seal lips.

    The silicone grease really needs injecting between the two seal lips. A very fine tube on a syringe with an angle cut on the end allows the end of the tube to be manoeuvred past the front seal lip. Probably not a problem on the RMTA gland with the grease access on the top.

    Richard 

    • Greenie 1
  4. I found that the way to solve the problem was dual vents, one at each end of the tank. These provide an air flow through the tank,  which encourages aerobic bacteria. They break down the contents. Anaerobic bacteria cause the smells. I just use bio washing liquid pods, two after a pump out.

    Richard 

    • Greenie 1
  5. 5 minutes ago, dmr said:

    Epoxy is good stuff, its weakness appears to be that it does not stick too well to some surfaces and tends to lift off in sheets. I suspect the Vactan is at least part of the problem, its a second best fix when you can't do a proper job and probably not a brilliant primer.

     

    If you can get almost to bare metal (and a needle gun should do that) then apply a surface tolerant epoxy primer direct to steel, after suitable cleaning. Otherwise I have used Red Owatrol and then a couple of coats of bilge paint (Danboline or similar) and that has been good for 7 or 8 years so far. The red Owatrol took several days to dry.

     

    When you say Red Owatrol, which Owatrol product is it exactly please?

     

  6. When I had a PRM120, I gave up trying to get everything perfectly adjusted in both forward and reverse.  I made sure that the forward adjustment was best as it most used. I also got into the habit of taking the control beyond the idle position every time I put it into gear, so that all the slack was taken up, and the gearbox lever was against the stop. I still do it even though I have changed the box for a 150!

    Richard 

  7. 15 minutes ago, nicknorman said:

    I think the important point is whether the temperature is under the control of the thermostat, or not. If it gets to 90 at 1500 and is still at 90 after a while at 1800 or whatever, then the thermostat is doing its job and all is fine. If it goes over 90 when you run the engine faster than 1500 then the thermostat is already wide open and there is a lack of adequate cooling.

     

    As others have said, also corroborate the gauge reading with another thermometer. If it really is at 90C and you have a calorifier then the hot water coming out of the tap is going to be at 90c which is a bit dangerous. If so, I’d try to get a cooler thermostat ie around 80C

    Depends on whether there is a blending valve on the calorifier to limit the water temperature to the taps. If there is, you don't have a problem!

    Richard

  8. I didn't bother trying to fix to the cabin sides. I built out from the below gunwale battens to secure the bottoms, and used a ceiling batten hard up against the tops. I think if was doing it again, I would do the same but add PU40 sealant as well. I wouldn't like to rely on sealant and the primer, it relies on both the primer bond to the steel and the sealant to the primer.

     

    Richard 

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