| 摘要 |
A vacuum unit for an ignition distributor includes a housing which is divided internally into first and second chambers by a diaphragm. A connecting link for attachment at one end to the timing plate of the ignition distributor is connected at its other end to the diaphragm so as to move therewith. Secured to the housing of the unit is a bracket whereby the unit can be secured in position on the casing of the ignition distributor and the bracket is provided with a locating member. In use the locating member is engaged by the detachable insulating cap of the distributor, and so serves to locate the cap angularly in the desired position relative to the distributor casing. The connecting link is provided at said one end with means whereby the connecting link is coupled to the timing plate. Said connecting means is provided on the link by a shaping operation, and the position of said means is determined using the location member of the bracket as a reference point.
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