Recent content by chrisparr

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    Engine mounts for my Thornycroft T90 on a Moody333

    All well now. The ASAP link is the correct one. I was tired and on autopilot trusting the digital readout on my cheap Chinese made callipers. It was displaying half the measurement. When I sat and thought about it at home, things weren’t making sense, so I looked at the scale ignoring the...
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    Engine mounts for my Thornycroft T90 on a Moody333

    Hello, I’m looking for replacement engine mounts for my T90. This looks Like the right one on ASAPs site but it is twice the size (130mm long where mine is 65mm) Compression Flexible Engine Mount 320-500LBS this wouldn’t work for me as it’s too big. I can’t seem to locate one of the same size...
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    The many forms of butyl tape/sealant

    Thanks guys for all the quick responses and suggestions/links. Very much appreciated :)
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    The many forms of butyl tape/sealant

    Hi, I'm looking to add some deck fittings and after seeing several videos on YouTube, I'm going to use butyl tape to seal. So I went online to find some and became very confused. I can see loads of rolls of butyl tape described as a double sided tape. I've seen it shown as a sticky cord to go...
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    1980s Yamaha/Mariner 2hp 2B Cooling Water Circulation

    Correct, water goes in through the slot circled in blue, circulates around the cylinder, and comes out the hole circled in red. As VicS said, the pipes circled in green are nothing to do with water circulation. The outlet from the cylinder is quite small, goes through 90 degrees and down to...
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    1980s Yamaha/Mariner 2hp 2B Cooling Water Circulation

    It came with the engine which came with the boat :) It's not for my exact version, it's for a newer model (I think 1986 onwards) which has oil seals in different places, a different (taller) impeller housing, and a different gasket arrangement on the gearbox, but it's still a good reference...
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    1980s Yamaha/Mariner 2hp 2B Cooling Water Circulation

    Yes, it all went back together and runs fine. I can see the difference in the amount of water that squirts out. Like you say, not a steady stream but clearly enough to show no blockages. I did have to replace all the gaskets. The workshop manual states the upper gasket between the exhaust...
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    1980s Yamaha/Mariner 2hp 2B Cooling Water Circulation

    So took the head off and sure enough there's lots of salt build up. Where the water exits the head is quite hard to get at and was blocked solid. Best thing I found was to pour boiling water in there and eventually it unclogged and the salt cleared away. Oh and yes, those are two bolts that...
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    1980s Yamaha/Mariner 2hp 2B Cooling Water Circulation

    The water pipe grommet at the top of the water pump housing is new and I've tested the pump is ok (comes up to the power head fine). My theories aside about how much water can build up in the leg, I've cried to manually put water into the intake on the power head to see if it would exit at the...
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    1980s Yamaha/Mariner 2hp 2B Cooling Water Circulation

    Hello all, I ran my outboard for the first time the other week and noticed there wasn't any water coming out of the exhaust port on the leg just by the mounting bracket. I've seen many videos and comments on this forum that you should see water there. So I've taken it apart and boy were the...
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