KAMPALA:
Yes, understood that this device is not technically a relay but is an electrical on/off device controlling vacuum to distributor. Unclear however, what controls the on/off signal?
I did another search in TECH MANUAL and found this reference ( no photo however) :
"Tom Sargeant: the vacuum line should connect to the two way valve in a properly functioning emissions control system. That distributor has an advance curve that requires the retarded ignition during initial idle and partial acceleration for optimal performance. Without the vacuum hose hooked up and the related emissions relays functional, you will likely be in a state of perpetual advanced timing. This means you either have a fast idle (15 or better degrees of advance at idle to achieve 30+ degrees advance at speed), or if the distributor timing is adjusted to have a "normal idle", your advance range is likely no more than 15 degrees. This means that at mid and high range speeds, you are only 15-20 degrees advanced, vs the optimal advance of 30-35 degrees at higher rpms. This means poor combustion, a rich running condition, poor mileage and generally less than optimal performance-both on acceleration and at speed. Joe, since you have been active on this posted topic, pls check me where I may have technically mis quoted."
I still do not know the name of this device nor can I find it on any electrical drawing?
