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  1. #1
    RC Competitor
    Join Date
    Oct 2013
    Posts
    57

    running problems

    Ok so I think I've got an air leak. My engine won't tune and there are bubble in the fuel line. But my tank is good. All of the lines are good to. Is it the carb then. I'm having this same problem with both of my .15 4 tecs

  2. #2
    RC Qualifier
    Join Date
    Jan 2013
    Location
    Gurley, Alabama
    Posts
    766
    A bad exhaust o-ring, cracked header, bad coupler, or even a broken pipe can all cause fuel pressure problems. How did you check the tank and lines? They can suck air without leaking fuel.

  3. #3
    RC Competitor
    Join Date
    Oct 2013
    Posts
    57
    It doesn't leak fuel. I blew in one hole and plugged the other. No Auer leaked. I think it could be the exhaust. I bought a new rubber pipe.

  4. #4
    RC Competitor
    Join Date
    Oct 2013
    Posts
    57
    I'll check in a bit

  5. #5
    RC Champion
    Join Date
    Aug 2013
    Location
    Brazoria, Texas
    Posts
    1,442
    Tip the car over with fuel in the tank. If the o ring on the tank Is good then it shouldn't leak at all. That caused me so much issues.
    Spartan Jet Boat
    Alias
    Fiero GTP

  6. #6
    RC Competitor
    Join Date
    Oct 2013
    Posts
    57
    Ok I let you know in a bit

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