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  1. #1
    Non-member Mike GTT's Avatar
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    boost gauge issue...

    where does the standard boost gauge in the dash plumb into?? it doesn't read anything even when boosting, but there are no loose ends that i can see coming from the manifold/ carb area???

  2. #2
    Non-member Markey Mark (BD)'s Avatar
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    Re: boost gauge issue...

    On the carb top drivers side you have an outlet which a t-piece with 2 outlet on it, the boost guage is one of those vacum pipes coming off of it, it goes down to the bulkhead and goes onto the 90deg fitting which is next to the speedo wiring.

    Hope that helps mate

  3. #3
    Non-member Mike GTT's Avatar
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    Re: boost gauge issue...

    can't work out how it's stopped working all of a sudden. it looks like no pipe was attached at all as there are no pipes missing from the or open anywhere near the carb?? very strange!

  4. #4
    Non-member Tiny Tim's Avatar
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    Re: boost gauge issue...

    Check the 90 degree bend connector at the bulkhead that Mark mentioned.

  5. #5
    Non-member Markey Mark (BD)'s Avatar
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    Re: boost gauge issue...

    If it was working and then it stop it must be/have been attached there. The pipework could be split or come off the back of the guages also.

  6. #6
    Non-member Mike GTT's Avatar
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    Re: boost gauge issue...

    this is what i can't get my head around. the pipe(at the bulk head) was open ended, so it wasn't attached to anything at all. but there is also nothing for it to attach to, if that makes sense??

    its got me stumped lol

  7. #7
    Non-member Markey Mark (BD)'s Avatar
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    Re: boost gauge issue...

    Quote Originally Posted by Mike GTT View Post
    this is what i can't get my head around. the pipe(at the bulk head) was open ended, so it wasn't attached to anything at all. but there is also nothing for it to attach to, if that makes sense??

    its got me stumped lol
    Ok have a look at the carb top for me, on the drivers side you have an outlet, there should be a pipe with a twin t-piece on it is that there on yours mate?

  8. #8
    Non-member Mike GTT's Avatar
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    Re: boost gauge issue...

    its been t'd into another pipe coming off the carb top which then goes to the second stage fueling part of the carb.

    does that make sense??

  9. #9
    Non-member Markey Mark (BD)'s Avatar
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    Re: boost gauge issue...

    Yeah that makes sense mate, the twin t-piece has to pipe that go off to the standard bost guage and the carb vacum port for the acc pump jet.

    If your standard boost guage pipe isn't connected there it should be and also on the 90deg fitting in the bulkhead.

  10. #10
    Non-member Mike GTT's Avatar
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    Re: boost gauge issue...

    i honestly can't find anywhere where it should connect to.
    took it out for a spin tonight, and i've defo got something leaking into the car, got a pounding headache lol

    could it connect in anywhere else??

  11. #11
    Non-member Markey Mark (BD)'s Avatar
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    Re: boost gauge issue...

    You got a pic of that side of the engine bay, if i see it i'll be able to tell you whats happened to the pipework.

    The smell and leaking sound isn't good, i'd want to get it fixed soon.

  12. #12
    Non-member Mike GTT's Avatar
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    Re: boost gauge issue...

    i'll get some pics up tomorrow mate.

    cheers for your help

  13. #13
    Honorary Member THE MASTER's Avatar
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    Re: boost gauge issue...

    mike ive spotted a prob there is a pipe missing
    has anyone noticed the pipes on the lobster

  14. #14
    Non-member Mike GTT's Avatar
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    Re: boost gauge issue...

    there was a screw there, i piped that in today. still no joy

    still got the headache too

  15. #15
    Honorary Member THE MASTER's Avatar
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    Re: boost gauge issue...

    ok so the missing pipe from the lob has been blanked off . but the rest of the pipes just dont look right . can you take another picky, pref from above

  16. #16
    Non-member Mike GTT's Avatar
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    Re: boost gauge issue...

    yea mate no worries.

    i've run the pipework to my boost gauge i put in today...... just fumes now lol

    cheers for the help! muchos appreciation!

  17. #17
    Non-member MR TURBO's Avatar
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    Re: boost gauge issue...

    Look in my profile there are some carb top pics before and after the cup mod

  18. #18
    Non-member dave j gtt's Avatar
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    Re: boost gauge issue...

    pipes from carb top and actuator, and aei and carb base are wrong way round for sure and need pic of otherside of carb to advise about boost gauge issue

  19. #19
    Non-member Markey Mark (BD)'s Avatar
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    Re: boost gauge issue...

    Hmmm, where does that pipe go from the carb top in that picture, as everyone has said that doesn't look right there.

    Get a more detailed pic and one of the other side too.

  20. #20
    Non-member RICHIE's Avatar
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    Re: boost gauge issue...

    https://www.rtoc.org/articles/i/autof...LTUUMSWSPF.jpg

    the std pipe arrangement

    https://www.rtoc.org/articles/i/autof...CFQBVTWXZT.jpg

    the cup mod arrangement


    https://www.rtoc.org/boards/album.php...pictureid=5719

    and here is the boost guage nipple that goes to your clocks mate


  21. #21
    Non-member scratcher's Avatar
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    Re: boost gauge issue...

    Bit of a rough picture but it might help.
    Dotted red is from carb top, yellow is double t peice and solid red is to the 90 bit at the bulk head

  22. #22
    Non-member scratcher's Avatar
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    Re: boost gauge issue...

    Damn, beaten again

  23. #23
    Non-member Mike GTT's Avatar
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    Re: boost gauge issue...

    right then here goes:






    i've got some more pics here if needed.
    cheers guys.

  24. #24
    Non-member RICHIE's Avatar
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    Re: boost gauge issue...

    were is that vacume tubing off the carb top going the one on the right hand side of the car as you look at it

  25. #25
    Non-member Mart's Avatar
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    Re: boost gauge issue...




    Where's the carb-top pipe (left hand one of the two smaller pipes in this picture) going to?

    You should really have a jubilee clip/cable tie around whatever it is that's occluding the pipe on the right hand side, or loop it back onto the carb-top.

  26. #26
    Non-member Mike GTT's Avatar
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    Re: boost gauge issue...

    sorted.

    that pipe splits joins onto a black pipe which was hanging into down the back of the engine. i have now looped it in. gauges in the car are working correctly and should be the end of my headaches lol

    don't i feel stupid right now

  27. #27
    Non-member Mart's Avatar
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    Re: boost gauge issue...

    Not so sure of that headache being over with yet...

    Where does that black hose go that you're referring to?

  28. #28
    Non-member MR TURBO's Avatar
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    Re: boost gauge issue...

    Quote Originally Posted by Mart View Post
    Not so sure of that headache being over with yet...

    Where does that black hose go that you're referring to?
    Shouldn't that one be free to air???

  29. #29
    Non-member Mart's Avatar
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    Re: boost gauge issue...

    If it's the one coming off the enrichment block of the carb, yep.

    Hence the 'headache not over yet' comment...

  30. #30
    Non-member Mike GTT's Avatar
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    Re: boost gauge issue...

    it was attached to the pipe which goes to the standard gauge on the dash. so i've cut it back and looped it into the carb top.

  31. #31
    Non-member Markey Mark (BD)'s Avatar
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    Re: boost gauge issue...

    That pipework doesn't look right at all mate in the pic, the standard boost guage is tapped into the AEI vacumm pipe and the carb top looks like its tapped into it also

    Have you a pic of how you done it now, bit confusing what you have done mate. If its similar to how it is now it will need changing mate.

  32. #32
    Non-member Mike GTT's Avatar
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    Re: boost gauge issue...

    the standard boost gauge isn't tapped into anything now mate. instead i've run the pipe from my seperate boost pipe and tapped it into the AEI line.

  33. #33
    Non-member Markey Mark (BD)'s Avatar
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    Re: boost gauge issue...

    Quote Originally Posted by Mike GTT View Post
    the standard boost gauge isn't tapped into anything now mate. instead i've run the pipe from my seperate boost pipe and tapped it into the AEI line.
    Ah cool thats good mate, couldn't quite work how what you had done but that sounds good

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