GX345 fuel leak
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    DaBomb6988's Avatar
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    GX345 fuel leak

    I recently acquired a GX345. It didn't run the best so I took the bowl off and cleaned it and sprayed some carb clean in the holes and what not. It runs alot better but now when its at idle fuel pours out the overflow. I've never had a carb apart. But I have a basic understanding of how it works. My question is could the float be stuck? Or something else all together? Also shouldn't the solenoid cut fuel off so it doesn't leak?

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    Fozsey's Avatar
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    Quote Originally Posted by DaBomb6988 View Post
    I recently acquired a GX345. It didn't run the best so I took the bowl off and cleaned it and sprayed some carb clean in the holes and what not. It runs alot better but now when its at idle fuel pours out the overflow. I've never had a carb apart. But I have a basic understanding of how it works. My question is could the float be stuck? Or something else all together? Also shouldn't the solenoid cut fuel off so it doesn't leak?
    The needle isn't closing. I'd guess the float isn't completely centered and getting hung up on the bowl. That carb isn't horrible to take off. Its just a pain. Pull the bowl back off and make sure the float is free and its closing the needle, Those carbs are very tempormental about being clean so you might look into a dunk in cleaner and freshening it up.
    BigJim55 and SulleyBear like this.


    ~Brian~

    1998 425/54 Deck/650 hours | 1998 455/60 Deck/54 Blade/1300 hours | 2003 GX345 48 Deck/47 Blade/Electric Pivot/900 hours (sold)


    Yes I have an addiction and no I don't want help


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    DaBomb6988's Avatar
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    Ok thanks. Now Iíve looked at those cleaners. Do they eat plastic and rubber? Iím getting conflicting answers on it.


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    Quote Originally Posted by DaBomb6988 View Post
    Ok thanks. Now Iíve looked at those cleaners. Do they eat plastic and rubber? Iím getting conflicting answers on it.


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    Some of the soaking type cleaners can so be careful. Usually best to remove the float (usually plastic ) and needle (tip is usually rubber) before hand. You also want to be sure rubber needle tip is in good shape. It will have to be removed for inspection anyway. This is most likely where your overflow problem is.

    Another tip. Be careful removing the pin the float pivots on. Most all pins just slide out sideways once the bowl gets removed. Sometimes one direction is easier than the other. Brake either tab off the carb body and it's all over but the crying.
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    DaBomb6988's Avatar
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    The needle is hooked to the float correct? Also do I need to remove the governor before taking the carb off on this application?


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    John Deere Current: X540, 425, GX345, GT262,
    2520-FEL,

    Sold: 650-FEL, MMM, BrushHog, GT235, LX172

    Ford: LS45 Work in progress fire damage

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    Fozsey's Avatar
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    Quote Originally Posted by DaBomb6988 View Post
    The needle is hooked to the float correct? Also do I need to remove the governor before taking the carb off on this application?


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    The needle has a small wire hoop that attaches it to the float and the throttle plate will need to be removed which includes the gov spring. Snap a pic with your phone if you are worried about getting everything back where it belongs.
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    ~Brian~

    1998 425/54 Deck/650 hours | 1998 455/60 Deck/54 Blade/1300 hours | 2003 GX345 48 Deck/47 Blade/Electric Pivot/900 hours (sold)


    Yes I have an addiction and no I don't want help


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    DaBomb6988's Avatar
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    Quote Originally Posted by Fozsey View Post
    The needle has a small wire hoop that attaches it to the float and the throttle plate will need to be removed which includes the gov spring. Snap a pic with your phone if you are worried about getting everything back where it belongs.
    Thanks for the tips. I always try and take pics before I dabble into uncharted territory. I bet half of my pics are from stuff I've torn apart
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    DaBomb6988's Avatar
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    Quick update. I checked the float and the rubber tip was torn. Replaced and no more leaks. But it is surging again so I am going to get a can of carb dip and try that.

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    DaBomb6988's Avatar
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    Thanks to this forum and youtube I rebuilt my first carb. Purchased a carb kit and cleaned everything and now its running as it should!
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    Quote Originally Posted by DaBomb6988 View Post
    Thanks to this forum and youtube I rebuilt my first carb. Purchased a carb kit and cleaned everything and now its running as it should!
    Thanks for the update. Its much appreciated. Make sure you check your fuel lines because most of my issues on my 345 were due to shedding fuel lines. Everything from the tank to the filter will be likely trapped in the filter but anything upstream from the filter will go directly to the carb.


    ~Brian~

    1998 425/54 Deck/650 hours | 1998 455/60 Deck/54 Blade/1300 hours | 2003 GX345 48 Deck/47 Blade/Electric Pivot/900 hours (sold)


    Yes I have an addiction and no I don't want help


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