How to: troubleshoot your marine diesel fuel system - Yachting Monthly

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The diesel inboard on your boat has stopped working. The electrics are all working okay, so it's likely to be the fuel system. Knowing how to trace the fuel system and troubleshoot it at each point is key. Rubicon 3's (www.rubicon3.co.uk) Bruce Jacobs shows Matthew Sheahan how to do it.
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Пікірлер: 56

  • @TraderTips
    @TraderTips3 жыл бұрын

    Hi good video - one thing that might be worth mentioning particularly if you are new to the boat or someone else has used the engine. Check the engine stop lever has not been left pulled out! Sometimes this cannot be seen if not adjacent to the start key.

  • @sailingaphrodite4189
    @sailingaphrodite41893 жыл бұрын

    It might be worth mentioning the return fuel system. You won't get very far on one can of fuel that is being returned to the main tank!

  • @KarelBeelaertsvanBlokland
    @KarelBeelaertsvanBlokland3 жыл бұрын

    Most common failures is Vacuum leaks! ... Make sure any connection is connected well... Even the non using taps on the Delphi pre-filter may leak ..... Use brass gasket rings and make sure the hose connections are tight

  • @aeh1709
    @aeh1709 Жыл бұрын

    the best vid on the subject i have seen. thank you so much

  • @sabatieryves6536
    @sabatieryves65364 жыл бұрын

    Perfect with subtitles .Thanks.

  • @deankelly6882
    @deankelly68823 жыл бұрын

    Very helpful iv just purchased a 36ft cruiser that's been standing since 2017 and I'm having trouble starting it but with your videos I should be able to get it started now thanks very helpful.

  • @IrregularPineapples

    @IrregularPineapples

    3 жыл бұрын

    Did you get it started?

  • @MrRugbylane

    @MrRugbylane

    Жыл бұрын

    Did you get it started yet ?

  • @BillSikes.

    @BillSikes.

    Жыл бұрын

    Did you ever get your engine started 🤔

  • @BigMamba10000

    @BigMamba10000

    8 ай бұрын

    Did you get it started?!

  • @jacobfirst2365
    @jacobfirst23653 жыл бұрын

    Awesome vid! Absolutely perfect. 🍻⛵

  • @lotsimo
    @lotsimo4 жыл бұрын

    very good explained, learned a lot....

  • @TATEXPRESSINC
    @TATEXPRESSINC3 жыл бұрын

    I love the video

  • @kylek2794
    @kylek27942 ай бұрын

    Good tip at the end !

  • @matthowarth2971
    @matthowarth29713 жыл бұрын

    That's only bled part of the low pressure side of the system, there will still be air in the line between the secondary filter and the injector pump. You need to loosen the bleed on the pump and repeat the process using the lift pump lever. Then there will still be air in the high pressure side of the system, a lot of engines are self bleeding but if anyone here is genuinely stuck and their engine still isnt running you need to crack your injectors off and turn your engine over on the key until you see fuel coming out of each. (Do this one at a time, and be ready for the engine to possibly fire before you get to the last injector) Remember to shut your seacock off so you dont flood the engine with water and dont have it turning over for more than 10 seconds at a time so you dont fry your starter (let it cool off for a bit between turning). If your engine still isnt running then it's not a problem with air in the fuel.

  • @billykarson5121

    @billykarson5121

    2 жыл бұрын

    You prolly dont care at all but does any of you know of a way to log back into an Instagram account?? I somehow lost my account password. I appreciate any tricks you can offer me

  • @kaseelisha9155

    @kaseelisha9155

    2 жыл бұрын

    @Billy Karson Instablaster =)

  • @billykarson5121

    @billykarson5121

    2 жыл бұрын

    @Kase Elisha I really appreciate your reply. I got to the site on google and I'm trying it out atm. Seems to take a while so I will get back to you later when my account password hopefully is recovered.

  • @billykarson5121

    @billykarson5121

    2 жыл бұрын

    @Kase Elisha HOLY **** IT ACTUALLY WORKED! I just got access to my ig account within about 45 minutes of using the site. Just had to pay 15 bucks but for sure worth the money =) Thanks so much you really help me out!

  • @kaseelisha9155

    @kaseelisha9155

    2 жыл бұрын

    @Billy Karson glad I could help :D

  • @sailingsilverwind
    @sailingsilverwind Жыл бұрын

    Great video, I am working on my Volvo Penta MD11C, i got the diesel bug in it!

  • @ColGadarby
    @ColGadarby3 жыл бұрын

    Very good !

  • @marcoforte298
    @marcoforte2982 жыл бұрын

    Thanks !

  • @trouveruneile9365
    @trouveruneile9365 Жыл бұрын

    Bonjour, merci pour vos vidéos sous titrees en français, elles sont simplement parfaites.

  • @RelaxationMeditationMusicSpace
    @RelaxationMeditationMusicSpace3 ай бұрын

    Nice video thanks for the info💕 Not to mention the fuel and water Seperator in this video has a little black ring inside if there is water in there the black ring will float right?

  • @saltybuster946
    @saltybuster9463 жыл бұрын

    Remember the Diesel return is still going to the main fuel tank

  • @hawaiidogs9277
    @hawaiidogs92772 жыл бұрын

    Ty sir

  • @Jyock
    @Jyock Жыл бұрын

    When opening the fuel separator to look for water contamination. Do you need to bleed that filter after draining some fuel from the bottom of the filter?

  • @MrBluoct
    @MrBluoct4 жыл бұрын

    Any time frame when one believes the injectors are “gummed up” and the spray pattern compromised because the boat / motor had been stored for an extended amount of time ? And if cleaning injectors is ideal vs new I believe once the spray pattern is compromised, the injectors nozzle spray does not ... “self correct” with any type of fuel tank additives or magic potions ... Then trouble shooting the injector pump - how? Those two parts on my 2gm20?were the issue on an otherwise perfect little 900 hour motor

  • @andreasnielsen1982
    @andreasnielsen19823 жыл бұрын

    If the pre filter is empty on diesel. Do i just need to bleed or fill the second filter?

  • @klausjensen9150
    @klausjensen91502 жыл бұрын

    I really want to know where they got that cutey little diesel test tank from ? I cant seem to find one anywhere .

  • @lucasspaniard8430
    @lucasspaniard84303 жыл бұрын

    Emergency into a jerry can is great, but don’t forget to mention that the jerry can will have a much decreased range if your engine is set up with a fuel return. You would need to unhook the fuel return and place it in your jerry can as well to get proper fuel consumption.

  • @enriquelorenzo5476

    @enriquelorenzo5476

    2 жыл бұрын

    If you don't connect the fuel return, the only thing that will happen is a greater consumption of diesel, right?

  • @lucasspaniard8430

    @lucasspaniard8430

    2 жыл бұрын

    @@enriquelorenzo5476 yes, as in it will cycle fuel from your Jerry can into your fuel tank. (cooling injector system) I meant to try this with my Yanmar to see what the hourly consumption increase is. I know if you feel your fuel tank after a few hours of operation, it will feel quite warm.

  • @austingode
    @austingode3 жыл бұрын

    And the injectors ? And the injector pump bleed screw ?

  • @garethferguson4434
    @garethferguson44342 жыл бұрын

    When I pump the manual lift, nothing comes out of the bleed valve. Does this indicate the lift pump needs replacing or os something else going on?

  • @user-jw7cu5ff8y
    @user-jw7cu5ff8y2 күн бұрын

    👍

  • @robertb7254
    @robertb7254 Жыл бұрын

    With my 6 cylinder you have to bleed at each injector VS one central location….thanks for video

  • @urbanimage
    @urbanimage3 жыл бұрын

    Nothing on bleeding the injectors?

  • @gregpsimos5388
    @gregpsimos5388 Жыл бұрын

    Hello, i have trouble while starting the engine first time of the day in early morning while the weather is warm, the starter have power to turn the engine, with the 3 4 times wont start, but after next try start normally, i already check filters bleeding, but couldnt find a solution.

  • @jovandragicevic4242
    @jovandragicevic4242 Жыл бұрын

    Is this water separator filter type ok for nanni diesel 21 hp ?

  • @mattpage2834
    @mattpage2834 Жыл бұрын

    Hi - what is the Yanmar demo engine you're using?

  • @stevehartley621
    @stevehartley6213 жыл бұрын

    You mentioned electrics at the start but didn't cover it again after that.

  • @tomwilliams8675
    @tomwilliams86754 жыл бұрын

    👍👍👍👍👍👍

  • @justinschulze6654
    @justinschulze6654 Жыл бұрын

    What do you do if there is water in the fuel

  • @sailingalcanzar
    @sailingalcanzar4 жыл бұрын

    To bleed the fuel lines on my boat I just manually pump the lift pump until fuel flows out of the return fuel line.

  • @generaldisarray3830
    @generaldisarray38302 жыл бұрын

    What do you do if there is water in fuel filter

  • @BillSikes.

    @BillSikes.

    Жыл бұрын

    If it's in the water separator, just drain it off by loosening the screw underneath, if it's in the main filter you must replace it with a new one

  • @lytwilliams
    @lytwilliams Жыл бұрын

    Hi, what could be the issue if the secondary fuel pump is still not receiving fuel?

  • @lytwilliams

    @lytwilliams

    Жыл бұрын

    Sorry, fuel filter

  • @BillSikes.

    @BillSikes.

    Жыл бұрын

    ​@@lytwilliams Probably an airlock further upstream, bleed all the unions starting from the highest working you way right down to the injectors

  • @billythompson4585
    @billythompson4585 Жыл бұрын

    Y does my beta engine won't sto

  • @somyrab
    @somyrab5 ай бұрын

    So show the fuel coming out with bubbles.

  • @superwag634
    @superwag6344 жыл бұрын

    Where did they find this accountant to bleed the system with a ring spanner? 🤣 get a proper tool which turns more than 1/16th of a turn

  • @byoobyoobyoobyoobyoo9785
    @byoobyoobyoobyoobyoo9785 Жыл бұрын

    Wot do you do with 18 month old diesel?

  • @TheJalipa
    @TheJalipa4 жыл бұрын

    👍

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