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Thread: Fuel leak

  1. #1
    RC Competitor
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    Fuel leak

    My revo doesn't work because have a leak somowere in the engine. When I connect EZstart the flywell spins and splashes fuel everywhere. Anyone know what it could be?
    I do not want to disassemble the engine without knowing something ... is the first time that I will disassemble it .
    Help please

  2. #2
    RC Turnbuckle Jr. Wolfslash16's Avatar
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    Try checking the engine bearings, it sounds like one of the bearings is going bad.
    Last edited by Wolfslash16; 05-20-2013 at 02:28 PM.
    Sl2sh Slayer Summit Sl4sh Teton/Rally T-Maxx Pnde

  3. #3
    Marshal Double G's Avatar
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    Is your fuel line connected to the carb? Carb cracked or not? The only other spot would be the front bearing has a good leak but if it is a considerable amount of fuel look at the first two options.
    The Super Derecho

  4. #4
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    Fuel line connected and carb OK. Already disassembled the engine and it seems that is the front bearing because the center bearing moves up and down a bit ... how do I take it off?
    I've tried and it seems to be too tight or maybe I'm doing wrong , have you ever replaced it?

  5. #5
    Marshal Double G's Avatar
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    Take a socket small enough that will fit through the rear bearing but large enough to rest against the front bearing. Then use a mallet and tap the front bearing out. The rear bearing requires a stripped down engine to head to a 325 oven for about 10 minutes then the rear should fall out.
    The Super Derecho

  6. #6
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    Done...I hope to get the problem solved

    Thanks for the help

  7. #7
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    To take off rear bearing I used boiled water, put the the part where the rear bearing is in hot water over 2minutes... was enough
    Last edited by Cyborg; 05-22-2013 at 01:52 PM.

  8. #8
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    Did this fix the problem?

  9. #9
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    Yes the rear bearing came out with no problem (the bearings were full of gaps)but I'm still waiting for the new bearings. Takes about 15 days to get here, should arrive next week
    Last edited by Cyborg; 05-26-2013 at 12:37 PM.

  10. #10
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    Cool, I know some of these places take their time lol. But it's worth it.

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