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  1. #1
    Platinum Member
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    Sep 2004
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    Bloomington, IN
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    Kubota, G5200, KAMA 454

    Default KAMA fuel line bleeding

    OK, first issue. I blew a fuel line and I can't find how to bleed the system in the manuals. [img]/forums/images/graemlins/confused.gif[/img]

    See attached photo. I know this is Diesel 101 but, I'm lost.

    Thanks for any help.

    Patrick
    Attached Images Attached Images

  2. #2
    Platinum Member
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    Sep 2004
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    Bloomington, IN
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    Kubota, G5200, KAMA 454

    Default Re: KAMA fuel line bleeding

    Here is another view. I know this must be quite easy...if I could see what I was doing.

    Thanks again,

    Patrick
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  3. #3
    Super Member greg_g's Avatar
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    Western Kentucky
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    JD3720 Cab, 300X loader with 4-in-1 bucket

    Default Re: KAMA fuel line bleeding

    Mine blew the same hose, with only eight hours on the tractor. The fuel level in your filter housing is probably down.
    1. remove fuel filter housing
    2. fill housing with fuel and replace
    3. follow the flexible fuel line from the filter to the injection pump (not back to the fuel pump)
    4. loosen banjo fitting at input to injection pump
    5. use hand primer till bubbles turn into steady fuel flow
    6. tighten banjo fitting
    7. loosen all hard lines at the upper compression fittings
    8. use starter motor to crank the injection pump
    9. tighten each compression fitting as bubbles turn into fuel flow.
    10. by the time the last fitting is tightened, engine should start (if it hasn't already)

    //greg//

  4. #4
    Silver Member
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    Jul 2003
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    157
    Location
    Wisconsin
    Tractor
    Kama 554

    Default Re: KAMA fuel line bleeding

    O.K., now i am worried. Chip, have you seen many of these hoses blow? i am wondering if i should replace mine with better hose before it blows and not have to deal with all the extra bleeding and just bleed the new hose.

  5. #5
    Platinum Member
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    Sep 2004
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    Bloomington, IN
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    Kubota, G5200, KAMA 454

    Default Re: KAMA fuel line bleeding

    Schmalts,

    Any one who has a Diesel should know how to do this. I have had another diesel and have been lucky not to do this yet.

    I'm sure it's no more diffacult than bleeding breaks (much easyer to get to though!)

  6. #6
    Silver Member
    Join Date
    Sep 2004
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    240
    Location
    Orange County, NY
    Tractor
    Kama 454 w/Kokyer 195 loader

    Default Re: KAMA fuel line bleeding

    Paddy ... the rubber return line on my 454 is very badly deteriorated after 50 hrs. I'm assuming that is what blew on yours? The picture looks like you just replace the hose using the existing banjo fittings with hose clamps .. is that correct? If so thats what I do on mine b4 it goes ... Scozz

  7. #7
    Veteran Member bluechip's Avatar
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    Arkansas, USA

    Default Re: KAMA fuel line bleeding

    Wow, you gotta get up pretty early (or stay up late I guess) to have a chance to help here! that's good.
    When bleeding, not necessary to remove fuel filter just open vent on top, pump till fuel comes out, them pump some more to push air through back into tank.
    This hose is a problem on KM454 only, the KM554 inj. pump is designed with a hard line here, but it is not interchangable with the KM454. This is a "low pressure" line and can be repaird as Paddy has done, the crimps can be cut off the banjoe fittings and the banjo itself reused. some have gone to auto parts stores and had new crimps put on. The hose the factory uses here is not any good, this hose is exposed to sunlight which does not seem to help this type of rubber.

  8. #8
    Super Member greg_g's Avatar
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    Location
    Western Kentucky
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    JD3720 Cab, 300X loader with 4-in-1 bucket

    Default Re: KAMA fuel line bleeding

    </font><font color="blue" class="small">( When bleeding, not necessary to remove fuel filter just open vent on top, pump till fuel comes out, them pump some more to push air through back into tank.)</font>

    Talking firsthand experience here Chip - when my hose blew, the filter housing was pretty much drained by the time I got back with the repaired hose. Takes a helluva lot of pumping with the hand primer to fill that thing, it's faster to remove/refill/replace/bleed

    Don't trust my hearing aids either, as I have never been able to hear what you describe as the sound of fuel spilling back into the tank via the return line. The visual of seeing fuel run out the banjo input to the injection pump is much more reassuring.

    //greg//

  9. #9
    Veteran Member bluechip's Avatar
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    Arkansas, USA

    Default Re: KAMA fuel line bleeding

    opening the vent on top of the fuel filter should let gravity fill the filter without removing it, of course it won't hur anythng to take it off and fill it up. You are correct the filter must be full befroe the rest of hte bleeding process can be effective...

    JInmas a little different because flow is from tank to lift pump then filter but on the KM it is tank to filter to lift pump.

  10. #10
    Platinum Member
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    Sep 2004
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    Bloomington, IN
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    Kubota, G5200, KAMA 454

    Default Re: KAMA fuel line bleeding

    Well, once again you guys made this a 5 min job. As you tighten the injector lines she fired right up. She ran rough for about 5 sec.

    With in an hour I was moving 20 tons of gravel I had droped. I'd show a pix but it's dark now and who hasn't seen a parking lot?

    I did just take the Saw-all and cut off the cripms. A standard $2.00 1/4" ID fuel line slide right over the barbed fitting on the banjo.

    Thanks Greg and Chip,

    Patrick

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