Yanmar 3YM20 Regular Service Cost? - Page 2 - SailNet Community
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post #11 of 13 Old 04-12-2016
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Re: Yanmar 3YM20 Regular Service Cost?

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Originally Posted by Zoya View Post
Hey Weinie, that's Thierry from Jeanneau 349... I guess I'll have to start the oil change thread in the forum "Maintenance" topic
Hey bro!
It's a piece of cake to change the oil, oil filter, and both fuel filters. I usually do it in the fall as part of the winterization process. They say its better to leave fresh oil in the engine while it sits on the hard.

Get a good oil pump. Mainesail suggested the Moeller one and it really works well. Be sure to change the o-rings on the fuel filters too.
Here's the stufff you'll need
Yanmar 3YM20
(The primary filter on our boat, not indicated is YAN41650-502320 )
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Last edited by weinie; 04-12-2016 at 07:20 AM.
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post #12 of 13 Old 04-12-2016
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Re: Yanmar 3YM20 Regular Service Cost?

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Originally Posted by Zoya View Post
Thanks all for responding and passing along useful advice. I am actually pretty handy and do regular maintenance on my motorcycle myself but marine engines are new to me and I was actually a bit intimidated by the oil extraction process... so thanks to Rhaphsody-NS27 for passing on the oil pump tip. The Yanmar 3YM20 on my boat is so easy to access and so is the impeller that I also doubt it could take more than 2 hrs to get this done.

Take care,


You have some nice access to your engine. Nice the impeller faces forward.

Like suggested, warming the engine will help.

Enjoy
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post #13 of 13 Old 04-12-2016
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Re: Yanmar 3YM20 Regular Service Cost?

I guess I can only add that if the same person gave the range of time it was an estimate, not a quote. Not seeing the installation first, it is difficult to give a fair estimate. Impellers can be a real pita if stuck usually from not being changed or serviced regularly. I have had to remove the pump to a bench on many occasions. With your experience you should have no problem doing these tasks yourself.
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