After further consultations, additional replacement parts for the brakes have been ordered.
Meanwhile, this last week, a 12 volt vacuum pump arrived that will be used to replace the lost manifold vacuum previously available from the now extracted internal combustion engine (ICE). The pump selected was model MES 70/6E and it was purchased ($301) from Metric Mind Corporation (http://www.metricmind.com/category/ev-vacuum-pumps). It weighs about 1.2 kg and it has a operating noise level of about 58dBA. It purrs with a sound level that is very much like a aquarium air diaphragm pump. The manufacturer indicates that a 3 amp automotive fuse must be used for the electrical protection of the pump.
Picture DSC 05088 shows the side view of the MES 70/6E. It is designed to be run with the long dimension oriented parallel to the base of the car.
Picture DSC05089 shows the top view of the MES 70/6E. There are 3 mounting holes on the base that have rubber/grommets with brass centers to secure the pump to the vehicle.
This pump was highly recommended by Tim Catellier (http://www.evalbum.com/3189 ) and it was shipped immediately by Metric Mind upon placement of a credit card order. For an additional $8 Metric Mind included a connector plug kit which requires both additional wires as well as the attachment of crimp/solder pins to the leads before it can be used.
Picture DSC05075 that shows the wiring plug kit that required assembly before being used.
O'Reilly Auto Parts offers an equivalent prewired plug with 7” wire leads as part BWD 28423 ($6.99) that was purchased for initial testing with a 12 volt battery.
Picture DSC05086 showing the O'Reilly Auto Parts previously assembled electrical plug that is compatible with the MES 70/6E electrical connections.
Using a research grade vacuum gauge (McMaster Carr part 4105K24) the ultimate vacuum under normal operating conditions was measured at 19.8 inches (495 mm) of Mercury. At this vacuum the pump's internal pressure switch automatically shuts off and then later restarts when the vacuum quality has decreased to 18 inches (457 mm) of vacuum. When the power leads were reversed (per manufacturer’s instructions for temporary testing in a “diagnostics mode”) the ultimate vacuum achieved when the pump ran continuously was 21 inches (533 mm). The vacuum range delivered by the MES 70/60E is claimed by the manufacturer to be identical to the vacuum produced with a typical ICE.
Picture DSC 05088 shows the side view of the MES 70/6E. It is designed to be run with the long dimension oriented parallel to the base of the car.
Picture DSC05089 shows the top view of the MES 70/6E. There are 3 mounting holes on the base that have rubber/grommets with brass centers to secure the pump to the vehicle.
This pump was highly recommended by Tim Catellier (http://www.evalbum.com/3189 ) and it was shipped immediately by Metric Mind upon placement of a credit card order. For an additional $8 Metric Mind included a connector plug kit which requires both additional wires as well as the attachment of crimp/solder pins to the leads before it can be used.
Picture DSC05075 that shows the wiring plug kit that required assembly before being used.
O'Reilly Auto Parts offers an equivalent prewired plug with 7” wire leads as part BWD 28423 ($6.99) that was purchased for initial testing with a 12 volt battery.
Picture DSC05086 showing the O'Reilly Auto Parts previously assembled electrical plug that is compatible with the MES 70/6E electrical connections.
Picture DSC05087 showing research vacuum gauge that was used to measure the operational and maximum vacuum produced by the MES 70/6E vacuum pump.
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