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Leakage Between #2 & #3 Carbs

Discussion in 'XJ Technical Chat' started by patmac6075, Apr 8, 2016.

  1. patmac6075

    patmac6075 Active Member

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    Rebuilding these 550 Seca carbs and just started putting fuel in them and I have significant leakage between #2 & #3. There is a plastic Tee from the tank which splits off to feed #2 & #3 carbs, this fitting is only a press in and fuel just seeps past....Can I use teflon tape to build this fitting up? The other passages had aluminum pipe with o-rings to seal....this piece of plastic has nothing to help it seal!
     
    patmac6075, Apr 8, 2016
    #1
  2. a100man

    a100man Well-Known Member

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    Just had same problem PTFE tape worked for me.Not sure how long term it is though. 25 quid (35 US?) buys you an aluminium replacement,,
     
    a100man, Apr 8, 2016
    #2
  3. XJ550H

    XJ550H Well-Known Member Premium Member

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    XJ550H, Apr 8, 2016
    #3
    sneekysport likes this.
  4. patmac6075

    patmac6075 Active Member

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    O-rings were part of Len's kit, so they have been replaced.....not the news I wanted to hear....but $21 more is a small price to pay for safety.
     
    patmac6075, Apr 9, 2016
    #4
  5. hogfiddles

    hogfiddles XJ-Wizard, Host-Central NY Carb Clinic Moderator Premium Member

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    Did you greats the o-rings before putting them on? Did you grease the bores before pushing the tee in? If 'no' to either or both of these, you very well may have torn or twisted the o-rings. Also, some of the 'T''s are a formed piece with bumps rather than o-rings.....are you sure your "T" has rings? If it doesn't, then it's worn out and is indeed time for a new "T"
    Dave
     
    hogfiddles, Apr 9, 2016
    #5
  6. a100man

    a100man Well-Known Member

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    $21 US = £14.50, our local price is £25 - lucky guys..
     
    a100man, Apr 9, 2016
    #6
  7. patmac6075

    patmac6075 Active Member

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    O-rings have been greased, they are not the problem. I think you've hit the nail on the head with "worn out plastic tee". The tee has no o-rings and is just a press fit piece of plastic. I believe I'll be making a purchase on the replacement tee xj550h had suggested.
     
    patmac6075, Apr 9, 2016
    #7
  8. k-moe

    k-moe Pie, Bacon, Bourbon. Moderator Premium Member

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    In terms of the economic health of the working-class of our respective countries, I suspect that you get the better deal; or at least it's close to the same cost.
     
    k-moe, Apr 9, 2016
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    patmac6075 likes this.
  9. a100man

    a100man Well-Known Member

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    Hmm, didn't mean to start a socio-political debate, but you could be right. Best make sure Donald doesn't get too much further then..
     
    a100man, Apr 9, 2016
    #9
  10. patmac6075

    patmac6075 Active Member

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    UK will have at least two new residents if that scenario plays out.....
     
    patmac6075, Apr 9, 2016
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  11. k-moe

    k-moe Pie, Bacon, Bourbon. Moderator Premium Member

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    He won't. Or if he does he won't be able to get any of his policies in place.
     
    k-moe, Apr 9, 2016
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    Stumplifter and rocs82650 like this.
  12. k-moe

    k-moe Pie, Bacon, Bourbon. Moderator Premium Member

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    Good call. Fuel leak = bad.

    1007671635989682

    [​IMG]
     
    k-moe, Apr 9, 2016
    #12
  13. rocs82650

    rocs82650 Well-Known Member

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    That's ^ not a fuel leak. He's just riding the hell outta' that bike.:)

    Gary H.
     
    rocs82650, Apr 10, 2016
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  14. a100man

    a100man Well-Known Member

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    Back to the original issue, I noticed that the 'plastic' T on my BS30s was in fact metal (aluminium I guess) which looked to
    me like it might have had o-rings fitted before a plastic coating was shrunk over it. I didn't want to mess with mine so I used the PTFE and some silicone grease - might be interesting though to cut one up and see if it can be 'fixed'.
     
    a100man, Apr 10, 2016
    #14
  15. k-moe

    k-moe Pie, Bacon, Bourbon. Moderator Premium Member

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    They are made with a fuel-proof rubberized coating over an aluminum T.
    Replicating that at home is essentially a no-go situation. Chacal sells a replacement that uses o-rings, as well as selling the original moulded fitting.
     
    k-moe, Apr 10, 2016
    #15
  16. hogfiddles

    hogfiddles XJ-Wizard, Host-Central NY Carb Clinic Moderator Premium Member

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    Just get a new one and be done with it
     
    hogfiddles, Apr 10, 2016
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    rocs82650 likes this.
  17. a100man

    a100man Well-Known Member

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    Sure, sometimes you have to throw the towel in but never before a good fight ;)
     
    a100man, Apr 10, 2016
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  18. Mordred

    Mordred New Member

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    Hey XJ550H, do you happen to have the link to this tee on other sites? The eBay link isn’t up anymore. I’ve got the same issue, my tee is quite loose in its slot and pissed fuel everywhere. Thankfully it’s still winter here!
     
    Mordred, Feb 24, 2025
    #18
  19. Franz

    Franz Well-Known Member

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    XJ550H was last seen July 26, 2023.
     
    Franz, Feb 24, 2025
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