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Thread: Engine Stumble Only During Right Turns

  1. #1
    LX User bushbean's Avatar
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    Engine Stumble Only During Right Turns

    Engine in question is 88 LX with carburetor. When and only when the car
    turns right, occasionally the car will jerk hard one time as I slowly
    apply the gas. I think the jerk is a result of the engine stumbling. I don't
    get this jerk when going forward. Problem seems to be limited to hard
    right turns when the RPM is low (around 1500). Any hypothesis?
    Last edited by bushbean; 10-16-2006 at 02:29 PM. Reason: grammer



  2. #2
    3Geez Veteran HondaBoy's Avatar
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    Re: Engine Stumble Only During Right Turns

    possibly needs a rebuild. i would go that route, replacing the O rings and whatnot. made a world of difference to mine. but as you were saying, on right turns it starts giving you trouble. could be something wrong with the float or needle, maybe something to make the fuel bowl not fill up enough so when you turn it all goes to one side and doesnt allow fuel to go through the carb for a few seconds. thats my hypothesis. i'm going to take my spare carb apart and take a few pix. maybe it will help you out some.

    ok, i was noticeing that the float on this carb was kinda stuck. maybe thats your problem also. but as you see, where the fuel goes into the carb is on the right side. so it sounds like the bowl isnt filling up enough and allowing the fuel that is in the bowl to go to the left side on right turns.

    Last edited by HondaBoy; 10-16-2006 at 04:03 PM.
    Keep it HONDA. Or at least Asian.™
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  3. #3
    LX User bushbean's Avatar
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    Re: Engine Stumble Only During Right Turns

    Thanks for the fotos. I'm not brave enough to tear apart the carb at
    this moment, but I have a friend who knows about carb, so I might
    enlist his help one day to rebuild the carb. In the meantime, I'll just
    have to live with it. By the way, do you think an out of tune carb
    will pass emission test? Mine's coming up real fast.

  4. #4
    3Geez Veteran HondaBoy's Avatar
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    Re: Engine Stumble Only During Right Turns

    oh, i dunno. more than likely it will show up with too much hydrocarbon count. i guess i should feel lucky i dont have to worry about that yet. if your friend can tune the carb for you that may be best before going and doing your e test.
    Keep it HONDA. Or at least Asian.™
    *Weber 32/36*Pacesetter Header*2.25 in. Cat Back exhaust*SE-i rear disk brakes
    B18C swap ditched, A20 to be revived
    Looking for K20/trans for ultimate swap

  5. #5
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    Re: Engine Stumble Only During Right Turns

    Not trying to repeat what has been said, but sounds like the float needle is hanging up.

    Next few things to look at are the fuel filter & pump. Fuel dump test would rule it out.
    Last edited by 88Accord-DX; 10-18-2006 at 08:32 PM.

  6. #6
    LX User bushbean's Avatar
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    Re: Engine Stumble Only During Right Turns

    Another mechanically-oriented friend of mine was in the passenger seat
    when the jerk happened the other day. His opinion was it has more to do with the clutch springs not able to hold down the clutch, i.e., the clutch popped out for a fraction of a second, thereby creating this jerk that feels like the engine is stumbling. You see, the clutch and clutch cover were very recently replaced, and I decided, under the advice of a mechanic who was supervising, not to resurface the flywheel, which "looked very smooth." I am wondering now if the flywheel has something to do with this jerk. Anyway, it's just another idea to entertain myself with. I guess I should have resurfaced the flywheel when the tranny was out, but it "looked very smooth."

  7. #7
    LX User bushbean's Avatar
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    Re: Engine Stumble Only During Right Turns

    I was wrong about the "only during right turn" part. It also happened
    when the car is going straight and doing about 40 mph. One constant is
    the RPM is always low and I'm applying throttle after letting my foot
    completely off the gas pedal. If the float is sticky, I would surmise that
    the jerking would occur at any range of RPM. The same mechanic friend of
    mine thinks that the problem is simply "operation error", that Honda's like
    to the rev'ed hard, and that I should keep the RPM higher, above 2k, at all times.

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