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    Bagzy heeft het onderwerp Introduce aangemaakt in het forum Even voorstellen 5 jaar, 3 maanden geleden

    Hi all, thanks for allowing me to join, the site is very useful and informative. 😎
    We are based in the UK and currently restoring/rebuilding some Vespa Ciao’s, 7 in total, all at various stages of rebuild. Although we have built many motorcycles, Lambrettas, Vespas etc over the years the Ciao is a relatively new machine for us.
    We intend to…[Lees meer]

  • Profielfoto van Bagzy

    Bagzy reageerde in het onderwerp Decompression valve in het forum Problemen oplossen 5 jaar, 3 maanden geleden

    Thanks again
    We expected the decompression valve to seal (even when engine is not running) but alas it does not seal.
    Yes, we could block/blank the hole/cylinder head with a gasket to leak test the rest of the engine…but that surely that defeats the object of achieving a pressure seal test…?
    The aim is to pressure test the completed engine…[Lees meer]

  • Profielfoto van Bagzy

    Bagzy reageerde in het onderwerp Decompression valve in het forum Problemen oplossen 5 jaar, 4 maanden geleden

    Yes, we are using the stem that Malossi supply with the kit. Why is there a different stem available for Malossi heads other than the stem Malossi supplies? Is there a need/requirement for an alternative? Many thanks for the link 😉

  • Profielfoto van Bagzy

    Bagzy reageerde in het onderwerp Decompression valve in het forum Problemen oplossen 5 jaar, 4 maanden geleden

    Thanks Seven/Semmad
    Yes the spring is strong enough. We have hit the valve to the valve seat and we’ve used grinding paste to lap in the valve also.
    We build many lambretta/vespa engines and always perform a pressure leak test after assembly.
    Air is escaping out through the decompression valve when engine not running, i guess we will just have to…[Lees meer]

  • Profielfoto van Bagzy

    Bagzy heeft het onderwerp Decompression valve aangemaakt in het forum Problemen oplossen 5 jaar, 4 maanden geleden

    Hi all, does anyone have any knowledge/experience ref the design/fitting of the decompression valve.
    We are currently building a Malossi deps engine and have carried out an air seal pressure test of the assembled engine before fitting into the frame. We found that the Air pressure is leaking out through the decompression valve.
    Is this normal?…    [Lees meer]

  • Profielfoto van Bagzy

    Bagzy wijzigde zijn profielfoto 5 jaar, 4 maanden geleden

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    Bagzy is geregistreerd lid geworden 5 jaar, 6 maanden geleden