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  1. B

    Loss of power, won't plane

    Removed the powerhead, I reckon gasket was on wrong way around. I've flipped it, need to bolt everything back up. That's the old gasket from before the rebuild. I had that wee hole I'm pointing at on the port side, it should be on starboard. I believe it was the lack of gasket that was...
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    Loss of power, won't plane

    I got the borescope in there and made a video. Looks like it’s leaking from where the power head meets the power head adapter.
  3. B

    Loss of power, won't plane

    I think it's a leak, not a blockage. Where is all this water coming from.
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    Loss of power, won't plane

    Here's a video of the leak
  5. B

    Loss of power, won't plane

    I think gaskets are fine. The problem is the water leaking before it can get the the heads. But I don't understand where it's leaking from
  6. B

    Loss of power, won't plane

    Ok I have removed the lower unit and hooked a hose to the copper pipe in the exhaust housing. When I run water through it it comes out of the tell tale and pours from the front of the motor as pictured above. It doesn't come from the hoses at the back. I'm at a complete loss here.
  7. B

    Loss of power, won't plane

    Ok, so I assume you mean that the disconnected rubber hose and it's twin next to it that I'm pointing at should both have lots of water flowing as soon as the engine is started? Then once the thermostats open they take water from these hoses which has come from the head and let it out. Only...
  8. B

    Loss of power, won't plane

    I just disconnected that hose and ran the engine. I don't see any water coming out of it even though there is a good stream from the tell tale. Is that normal?
  9. B

    Loss of power, won't plane

    I can't see any water coming out of the block. It pour out from here: everything up top is dry. Could this be normal? Heads get hot but thermostat cover is cool, is that normal? Any way to test if thermostats are opening?
  10. B

    Loss of power, won't plane

    The engine was running with cowl off. Everything above the cowl base plate seems dry. Heads were too hot to touch but back of thermostat housing was cool to touch. I'll take off those covers you can see in my photo to better understand where the water is coming from
  11. B

    Loss of power, won't plane

    Ok, I managed to find a Napa with a selection of Woodruff keys. I filed it down a bit and torqued the flywheel down, and it started right up so that was the problem. Had her running on muffs for about 2 mins then the overheat alarm went off and she stalled. While she was running there was a...
  12. B

    Loss of power, won't plane

    You called it first, tphoyt also called, I just checked and you're right. In my haste to check things are working I hadn't torque it properly and hence its been reduced to metal filings. Seems like a cheap fix I just need another key? This makes me happy though, I figured it must be some...
  13. B

    Loss of power, won't plane

    Wondering if the minute running without water because of the dodgy muffs has damaged my new crankshaft seals and the reason I can't start her now is a lack of crankcase pressure/vacuum. On that first start everything fired up easily and ran for a minute before I realised there was no water...
  14. B

    Loss of power, won't plane

    Rapidly losing patience here. Everything is back together again, new fuel pump, carbs rebuilt, new Impeller. Same problem as before. She fires for a few seconds on the first try and then cuts out. Each subsequent attempt yields worse results. It spins and I get maybe one fire and a whisp of...
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    Loss of power, won't plane

    Getting ready to attach lower unit with a new Impeller and the upper exhaust gasket has split. I'm epoxying it back together as a new one will take a week to arrive and cost me $50. Manual says apply adhesive M to lower unit and exhaust housing mating surfaces. Seems it was previously...
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    Loss of power, won't plane

    Trying to minimise what I mess with as those things are likely to be a source of problems. Idea was power head first. How would the motor behave if you tried to start it in gear? Would that make it significantly harder to start? Right now it's at the point where you try to start, it fires...
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    Loss of power, won't plane

    Sorry for turning this thread into a monologue ;). I figure I'll rebuild the carbs, install a new fuel pump and replace all the primer and recirculation hoses. Those old hoses are very hard now so I suspect they may be leaking.
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    Loss of power, won't plane

    Ok hooked back up with new muffs and I managed to get it started and I have water from the tell tale, so muffs were the problem. Thanks, this makes me feel better. I have a video I made and it was indeed just a minute, with no load on the prop. I compared the new impeller with the old one I...
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    Loss of power, won't plane

    It was the bastarding muffs. I went and bought a new pair and I get loads of water out of the hole now. The new ones are cheaper but have a strong spring and make a better seal because they are round instead of rectangular. Maybe the old ones had become less flexible too. I just really hope...
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    Loss of power, won't plane

    Just dropped the lower unit to check if everything was ok with the water pump. And it seems that it is. Everything was in the correct place and impeller turns with shaft. I put the lower unit on the muffs to try to understand what's happening. The hole in the silver plate is where I assume the...
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