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  1. #1
    Non-member Bunje's Avatar
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    carb question

    as to my other thread i have piped the carb up how it should be piped up i think. and i cannot get the car to idle properly and it hunts on idle. so i took the lobster off to have a look what was going on and found that there is fuel like dripping from the part in the picture is this normal or is there something wrong.

    any help would be much appreciated

  2. #2
    South West Regional Rep Alastair's Avatar
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    Re: carb question

    Leaking seal by the accelerator pump jet. If I were you I would strip and rebuild your carb with a rebuild kit from the RTOC shop, or split it and change the rubber o seal and hope it seals up ok...

  3. #3
    Non-member Mart's Avatar
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    Re: carb question

    Enrichment cct diaphragm failure can cause fuel to drip from there (aux venturi).

  4. #4
    International Area Rep
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    Re: carb question

    Or maybe a too high fuel level in the float chamber.

  5. #5
    Non-member Bunje's Avatar
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    Re: carb question

    I ordered a service kit from rtoc shop. Is it hard to do. Hopefully that should cure my problem

  6. #6
    Non-member cpt chunk's Avatar
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    Re: carb question

    very easy to do.

    use this guide https://www.rtoc.org/boards/showthread.php?t=4743

  7. #7
    Non-member Bunje's Avatar
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    Re: carb question

    does anyone know what has happend to the pictures on thhe carb service how to guide. cuz there not loading on my computer or is it just my computer

  8. #8
    Non-member SamBam's Avatar
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    Re: carb question

    They dont work indeed.
    Maybe a moderator should take a look.

  9. #9
    Non-member Bunje's Avatar
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    Re: carb question

    sorry to revive an old thread but im still having problems. i rebuilt my carb put it back on the car and its still not right. i still have fuel coming down the middle of the carb where the arrow is pointing. im rebuilding he carb again cleaning everything in an ulrasonic cleaner. whilst i have it in peices mart mentioned something about cct/enrichment is there something i can do whilst its apart to chek that this is right. and the float level as mentioned by someone else how can this be wrong with the new float valve from the kit.
    any help would be much appreciated
    cheers Ben

  10. #10
    Non-member Brigsy's Avatar
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    Re: carb question

    From my experiences the cause of the fuel dribbling down the aux venturi is usually down to poor sealing needle valve, cracked float (float level too high) fuel pressure too high at idle.

    Also it can happen if the idle speed is too high 1k+ rpm in my experience. I also once had a knackered carb base that give me exactly the same problems so might be worth swapping a few bits round?!

  11. #11
    Non-member Bunje's Avatar
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    Re: carb question

    ill try putting it all back together nice and tight. the float doesnt look cracked. thanks for the reply i now have a few options to try

  12. #12
    Non-member Bunje's Avatar
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    Re: carb question

    just a quick question. when you say poor sealing needle valve do you mean where it seals with the copper washer behind it or the actual valve its self

  13. #13
    Non-member Markey Mark (BD)'s Avatar
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    Re: carb question

    Quote Originally Posted by Bunje View Post
    just a quick question. when you say poor sealing needle valve do you mean where it seals with the copper washer behind it or the actual valve its self
    Thats right mate, i find some old copper washers seal better then the new ones for some reason.

    I also find a blocked enrichment circuit (1st stage normally) causes the fuel to dribble too

  14. #14
    Non-member Bunje's Avatar
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    Re: carb question

    cheers for the reply mark ill have a look then

  15. #15
    Non-member SamBam's Avatar
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    Re: carb question

    same problem here.
    Idle hunts. I also had no idle at all when i press the clutch.

    But mine isnt dripping fuel.
    Ive tried a drilled out needle valve.
    I think the stalling problem is over now but idle still hunts.

    Hope u find a answer! Good luck!

  16. #16
    Non-member Bunje's Avatar
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    Re: carb question

    I'm convinced mine is something to do with an air leak. But my garage is like the antarctic I firstly have to gather the courage to go and find it

  17. #17
    Non-member dann's Avatar
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    Re: carb question

    hi...

    This can be ...due to the "throttle plate"....is more open that it should be... then de engine vacuum sucks Gasoline from the mixture centering....

    May be you have to close the "throttle plate" screw, and open the needle idle mixture....

    Is the needle Idle mixture work fine?

  18. #18
    Non-member Bunje's Avatar
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    Re: carb question

    I did sort the fuel dribbling down the aux venturi. I cleaned the carb out. I took it all to pieces cleaned everything in an ultrasonic cleaner and an airline and left it to slack for a week in a tub of paraffin. I put it back together and it now seems fine no fuel dribbling but my Afrs are still too high

  19. #19
    Non-member jamie_clioGTT's Avatar
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    Re: carb question

    where abouts in mids are you dude?

  20. #20
    Non-member Bunje's Avatar
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    Re: carb question

    I live in Sedgley. Just outside wolverhampton.

  21. #21
    Non-member jamie_clioGTT's Avatar
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    Re: carb question

    ahh rite still abit of a mission for me to pop over and take a look.

  22. #22
    Non-member Bunje's Avatar
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    Re: carb question

    Where abouts are you from mate

  23. #23
    Non-member jamie_clioGTT's Avatar
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    Re: carb question

    lichfield dude. if you could come to me id happily take a look

  24. #24
    Non-member Bunje's Avatar
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    Re: carb question

    To be fair it is abit of a trek. Maybe I'll see you at one of the shows or summat would be good to meet some people from the mids it seems like a pretty quiet area compared to everywhere else

  25. #25
    Non-member jamie_clioGTT's Avatar
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    Re: carb question

    yeah it is lol. i hope to be getting to some rtoc events this year. mids isnt too bad dude. just got to no the right crowd.

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