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Thread: Weber carb bracket - crossflow

  1. #1
    Join Date
    Feb 2020
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    Redondo Beach, CA
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    Default Weber carb bracket - crossflow

    Hi folks- I am replacing my downdraft DGV with proper side drafts. There is a mystery bracket between the side drafts that is no longer available from Caterham and no picture seems to exist of it. It has been described as a V shape and mounts below the carbs on the inspection plate.

    Does anyone have one that they can take a picture of and add some basic dimensions? Otherwise a picture inside the engine bay from underneath?

    Thanks!
    Pete

  2. #2
    Join Date
    Jan 2020
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    Hi Pete,

    The bracket serves two purposes. It holds the two carbs in alignment when they are removed from the manifold, and ay the bottom of the V it holds the outer shield of the throttle cable. In the attached picture you can see the inner throttle cable going up from the place where the outer shield is held. You can also see the two arms leading up towards the bottom of the two carbs. I am not sure what the wire that also is attached to the bracket does. Didn't notice it before. Went out and took another look. It is the bottom of the throttle return spring.

    I am sure this is a Weber part and not specific to Caterhams.

    Anker
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    Last edited by Anker; 05-11-2020 at 11:40 AM.
    1987 Caterham 1700 Supersprint
    2002 Porsche Boxster
    2004 Porsche Boxster S
    1941 Dodge Luxury Liner
    2009 Mercedes CLK 350 Cabriolet
    2017 Chevrolet Volt

  3. #3
    Join Date
    Jan 2020
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    96

    Default

    You will also need the adapter that connects the two butterfly valves and also have an adjustment screw for balancing the carbs. It allows you to control the two carbs with a single throttle cable.

    I am sure you can manufacture a bracket yourself if you have reasonable metal working skills.

    You may already have that.
    1987 Caterham 1700 Supersprint
    2002 Porsche Boxster
    2004 Porsche Boxster S
    1941 Dodge Luxury Liner
    2009 Mercedes CLK 350 Cabriolet
    2017 Chevrolet Volt

  4. #4
    Join Date
    Sep 2005
    Location
    St. Louis, MO
    Posts
    456

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    I’m not so sure it’s a Weber part. Didn’t find it after a quick look on Pierce Manifold, although they do have lots of linkage parts and kits.

    https://www.piercemanifolds.com/category_s/223.htm

    Maybe contact Redline Components in the UK?
    http://www.redlinecomponents.co.uk/

  5. #5
    Join Date
    Feb 2020
    Location
    Redondo Beach, CA
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    Thanks for the picture, I have a much better idea of what this looks like. Gotta love the clever spring retention hole integrated into the cable nipple sleeve. This is a Caterham specific part, not weber. I've contacted Redline UK without success (email and phone), will try again.

    Ken at Dave Bean has been very helpful, and gave me a great sketch for Lotus applications. It's for sure different than Anker's picture, so this also points to the Caterham specific part. So my follow on questions:
    1. Is the V bracket a tube or a plate with a lip on it? If a tube, does it have flattened ends to fasten to the carbs? If a plate, approx thickness?
    2. How does the V bracket fasten to the weber inspection plate? 2 screws on each carb? All 4 each carb? If 2 screws, which 2?
    Pete

  6. #6
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    Jan 2020
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    96

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    I'll have to remove the air filters to get a better view of how it is fastened to the carbs.

    The bracket is a tube on my car.
    1987 Caterham 1700 Supersprint
    2002 Porsche Boxster
    2004 Porsche Boxster S
    1941 Dodge Luxury Liner
    2009 Mercedes CLK 350 Cabriolet
    2017 Chevrolet Volt

  7. #7
    Join Date
    Jun 2009
    Location
    Canton, Michigan
    Posts
    114

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    I went through my toolbox and found this. Is this what you need? I never used it with my Caterham.
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    Last edited by MoBoost; 05-12-2020 at 03:54 PM.
    Jon
    2008 Lotus Elise S/C
    1985 Twin Cam Powered Caterham (sold)

  8. #8
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    Jan 2020
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    That's the one I have. The exact same!

    Anker
    1987 Caterham 1700 Supersprint
    2002 Porsche Boxster
    2004 Porsche Boxster S
    1941 Dodge Luxury Liner
    2009 Mercedes CLK 350 Cabriolet
    2017 Chevrolet Volt

  9. #9
    Join Date
    Feb 2020
    Location
    Redondo Beach, CA
    Posts
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    Thanks again guys. Jon was up for selling his 1985 bracket, so I am one step closer now!!

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