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<x-charset iso-8859-1>KeithP=> how on earth can you keep them open => while the engine is still warm?? Heat soak from the heads is the factor that does most to keep them open with engine off. After the restart, an important factor is the intake preheat system. This consists of the metal intake mixing box at the right rear of the engine compartment, which has a flap that can be set for winter/summer, and a hose (stock was corrugated paper) from the front of the right front (large) heat exchanger to the underside of the intake mixing box. This hose is frequently missing, as is the mixing box itself. The winter position on the mixing box allows (warmer) engine compartment air to enter the intake at idle. In summer snap the flap in the up position to get all intake air from outside. Also don't forget that your chokes can also be adjusted for more or less tension, as required. Steven Ayres, Prescott AZ '66 KG1600 ------------------------------------------------------------------- Search old messages on the Web! Visit http://www.vwtype3.org/list/ </x-charset>