Golf Vacuum Reservoir...wtf?

Honest John Back Room » Technical matters
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Wed 18 Feb 2004 11:04
Golf Vacuum Reservoir...wtf? - Tony Soprano
Does anyone know what the green spherical vacuum reservoir on a VW Golf actually does?Mine has no pipes to or from it,and also hasnt got the non-return valve which is supposed to be connected between the sphere and a pipe from the inlet manifold.Will this affect the cars performance?Car runs ok apart from what seems to be carb icing symptoms in cold/wet weather.
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Wed 18 Feb 2004 21:55
Golf Vacuum Reservoir...wtf? - David G.I.Davies
Depending on the engine type this reservoir has two different functions.On some earlier Polo versions it was used for ignition timing control and then it was used for sustaining the operation of the choke vacuum pulldown unit.It is this latter function which is mostly seen now.However if the pulldown unit itself is in good condition and correctly connected to a vacuum supply the choke system will still work tolerably well without the green sphere.Basically its one further complication added to the over complex Pierburg carburetter.
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