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Water inlet Yanmar SD20 saildrive |
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mystudio 
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Joined: 17 April 2018 Location: Netherlands Status: Offline Points: 153 |
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 Topic: Water inlet Yanmar SD20 saildrivePosted: 21 January 2023 at 18:43 |
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Hi,
I want to change the water inlet on my Yanmar SD20 saildrive, by a time as shown on this picture. (closes better and far more easily). I know this has been done by more people. Anyone can tell me which size it is? Didn't remove it yet (still in the water), but looks like 1/2" or something? Thx in advance!  |
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redlion
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Joined: 28 August 2013 Location: Creran Scotlan Status: Offline Points: 184 |
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Posted: 21 January 2023 at 19:27 |
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I have done this.
DZR equal nipple, male thread, 1/2"bsp DZR 90 degree hose tail, 1/2" bsp male to 19mm hose. CR Ball Valve 1/2" BSP female ports 2x 18mm-25mm SS hose clips. All from ASAP Supplies in UK.
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It,s not over till the fat lady drowns
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350Bob
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Joined: 24 August 2015 Location: Greece Status: Offline Points: 179 |
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Posted: 22 January 2023 at 13:56 |
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I did something very similar but I wanted to electrically separate the stainless fittings from the aluminium Saildrive so I used a Truedesign skin fitting cut down to form the nipple (male to male connector). I was a little hesitant to do this but I checked with the U.K. agent for Truedesign and they said that they had done it many times. That was five years ago and no problems so far.
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H350 #205
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H8jer
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Joined: 14 September 2010 Location: Denmark Status: Offline Points: 1265 |
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Posted: 22 January 2023 at 15:49 |
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Hi MyStudio
You show a picture of the SD60 saildrive as example? If you have SD20 you should read the whole thread here because the sd20 has tapered threads:
Edited by H8jer - 22 January 2023 at 15:58 |
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Hanse 370#487 30HP 3-cabin
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mystudio
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Joined: 17 April 2018 Location: Netherlands Status: Offline Points: 153 |
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Posted: 22 January 2023 at 19:51 |
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Damn, did not expect that. That makes it difficult. It's indeed a SD20. The picture is just an example. So, that means the SD20 has a tapered BSP. That will be a challenge to find a replacement then. @Redlion; is yours a SD20 too or do you have the SD50 version?
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#004|Jefa DD1|ACU200|EV1|P70|Raymarine E7|Axiom Pro9s|B&G displays|Emtrak transponder|Lewmar traveller|Dyneema|Flexofold|Carbon pole|ball bearing genoacars|Membrame sails|Spi and asym spi|N2K->Wifi
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redlion
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Joined: 28 August 2013 Location: Creran Scotlan Status: Offline Points: 184 |
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Posted: 23 January 2023 at 12:34 |
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Engine is Yanmar 3ym20 so I assume SD20 saildrive.
The shut off valve modification was carried out by a qualified engineer who did not report any problems but who knows, maybe he just forced it in?
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It,s not over till the fat lady drowns
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