cleaning Webber jets

Discussion in 'Technical Q&A' started by maurice70, Jun 29, 2004.

  1. maurice70

    maurice70 F1 Rookie

    Jan 25, 2004
    Full Name:
    maurice T
    Hi Could anyone tell me whats involved and the process of cleaning the jets in a webber carburettor foff a GT4? All pics and explanations would be highly appreciated thanks in advance.
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  3. Ferrari_tech

    Ferrari_tech Formula 3

    Jul 28, 2003
    Full Name:
    Malcolm W

    When stripping the carburettor remove all the jets and wash in clean petrol, pull all the jets / tubes apart especiallythe slow running jets (# 22)

    Blow through the jets with an air line and visually look to see that they are clear.

    Blow through the carb where the slow running jet screws in, being careful not to use too much pressure.

    Remove circlip (# 59) and remove the spring and plunger, clean off carbon deposits and refit - slightly "re-stretch" the springs.

    Check that the pump diaphragm (#27) are in good condition.

    Check condition of needle valves (#11) make sure the needle is seating properly and that there isn't a wear ring on the needle

    Replace all gaskets and "o" rings and re-set float levels - 46mm with gasket.

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