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Post by gtitarenko on Jun 8, 2021 19:32:48 GMT
Hi, I got 3 cabin SO 409 2012 with Yanmar 3JH5E and was advised to install Racor water separator. I have not yet looked but heard its not easy to get to the original separator there. Where is it located, exactly - I assume should be close to the fuel tank so under the port aft bunk? Any advice is appreciated, thanks!
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Post by jlasail on Jun 8, 2021 20:33:08 GMT
I have a SO 409 2014 (3 cabins) and it is located under the starboard aft bed. It is indeed hard to reach, in my case mainly because the engine duct vent is located right under the water separator.
I have not replaced it yet. It is on my to do list.
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Post by gtitarenko on Jun 8, 2021 21:07:18 GMT
I have a SO 409 2014 (3 cabins) and it is located under the starboard aft bed. It is indeed hard to reach, in my case mainly because the engine duct vent is located right under the water separator. I have not replaced it yet. It is on my to do list. Thank you! So the diesel tank is on port but the separator is on starboard? |
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Post by jlasail on Jun 9, 2021 6:58:20 GMT
Yes, that’s correct: diesel tank on aft port side. The diesel pipes are routed across the boat to the middle and the water separator is on the starboard side close to the engine area.
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Post by gtitarenko on Jun 9, 2021 18:09:39 GMT
Yes, that’s correct: diesel tank on aft port side. The diesel pipes are routed across the boat to the middle and the water separator is on the starboard side close to the engine area. Thank you very much for the info! |
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Post by bitsailor on Jun 9, 2021 19:56:01 GMT
There is a small sliding access panel under the sbd bunk on our 419, but its super fiddly to get to. I found it much easier just to pull the bedding out, unscrew the 4-5 screws holding the plywood down under the bed and then had full access. The extra 5 mins pulling the boards up saved me 30 mins of frustrating scrambling through the access port.
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Post by gtitarenko on Jun 9, 2021 22:14:46 GMT
Thank you!!
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Post by gtitarenko on Jun 15, 2021 15:54:34 GMT
So I found fuel water separator, now a question should fuel supply be shut off before I drain it? Forgive me but I do not see anything looking as a shut off valve coming out of the fuel tank to separator?
Any advice is very welcomed!
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rick63
Full Member
Posts: 33
Jeanneau Model: SO 409 (2012)
Yacht Name: Topaz
Home Port: Troon
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Post by rick63 on Jun 21, 2021 5:09:10 GMT
Hi,
When I replaced the filter in mine I did not shut off the diesel. Just put a small tub under the filter to catch the small amount that came out when I loosened the bottom bolt.Once replaced it did take a bit of time to get the air out and engine restarted. Just kept cranking the engine plus undo one of the nuts on top of the filter housing.
Rick
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Post by moonshadow on Jun 21, 2021 12:16:45 GMT
Note that on some of the Yanmar engine manuals there is a misprint on which fitting to loosen to bleed the system. If your manual shows to loosen the return line make sure you use the return line and not necessarily what is shown in the diagram. Fun huh?
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Post by ohana on Jun 21, 2021 13:58:24 GMT
On my 439, the primary fuel filter is mounted at the forward end of the engine bay, making access easy. Would there be room there on a 409?
My engine is a Yanmar 4JH5E, as others have noted, bleeding these engines can be a pain. The manual advises running the fuel pump with the return hose loosened/cracked a little. The process is especially slow if the fuel level in the tank is 50% or less, as gravity then will not help. So this year I fitted a bulb priming pump on the fuel line, between the tank and the primary filter. Bleeding the engine following filter replacements is now a 2 min task, with no hoses being removed.
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