Re: Low Oil Pressure 356

Posted by HH56 On 2014/6/22 10:26:29

The older thermal type flashers are very dependent on the proper circuit and filament resistance. If there is incorrect wiring or something causing the flasher to see too much or too little resistance at the bulbs it won't flash properly. The 47 also has resistors in the indicator light wiring. Each indicator bulb is connected directly to the P terminal of flasher and has what appears to be an inline fuse holder. That is actually a cartridge type resistor.

The canceling is dependent on two small maybe 1/8" diameter pins extending from bottom of wheel hub catching "hooks" in the switch mechanism. When the lever is moved, one of the hooks moves into position to be caught. As the wheel rotates in the direction of turn, springs allow the pins to push the mechanism aside without catching. As the wheel rotates back, the hook will not move aside so a pin catches the mechanism and pulls the lever back to off position. In off position, the hooks rest out of the way of the pins. That entire sequence is depending on both pins being in the wheel hub and at the same height and also the column and mechanism being the correct distance from the base of steering wheel so the mechanism sits high enough to be caught.