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Series 3 Petrol - air in fuel line

Discussion in 'Series Land Rovers' started by Chrisandtaba, May 27, 2020.

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  1. Chrisandtaba

    Chrisandtaba New Member

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    Help - my landy starts an runs okay but after about 5 minutes i get air bubbles in the fuel line and it breaks down. I recently replaced the fuel pump and that's when the problems started. Have tried PTFE tape on union but no difference and have tried sleeving section of nylon pipe from chassis member mount to pump an again no luck. Please help i am desperate!
     
  2. blue beasty

    blue beasty Leaks an prone to bits dropping off

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    You most likely have a leak between the tank and pump. Because it's under negative pressure as the pump 'sucks' fuel leakage is minimal but air can be pulled in.

    Inspect from pickup pipe all along fuel line or replace
     
  3. wireman

    wireman Well-Known Member

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    How much fuel is in the tank? It is not unknown for the fuel pick up pipe in the tank to corrode and draw air in when the fuel level drops below the hole.
     
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  4. Colthebrummie

    Colthebrummie Well-Known Member

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    You did attach the new pump correctly didn't you, it possible to get the operating lever the wrong side of the cam.

    Col
     
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  5. wireman

    wireman Well-Known Member

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    Did you get to the bottom of this?
     
  6. Chrisandtaba

    Chrisandtaba New Member

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    So new fuel pump arrived today and when i came to fit if i noticed the cast flange clashed with a bolt head so wasn't seating properly! Had to file it down to make it fit which makes me think the other one wasnt fitted properly either. I also found 3 gaskets when i took it off that someone else had fitted. Could explain the low flow rate but not sure about the bubbles. Battery flat now so can't check it . Was a britpart pump and now i have two!
     
  7. Chrisandtaba

    Chrisandtaba New Member

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    Full tank tried that one
     
  8. Chrisandtaba

    Chrisandtaba New Member

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    Not sure how to attach incorrectly as cannot see. Fitted from the top and hooked top of follow in and then rotated downwards
     
  9. rob1miles

    rob1miles Well-Known Member

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    Does it have a glass bowl?
     
  10. Chrisandtaba

    Chrisandtaba New Member

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    Yes it does. Have started and run it 4 times now and seems to be okay. Fingers crossed this has sorted the issue. Will keep you posted. Thanks everyone for your help and advice
     
    kermit_rr likes this.
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