Found loose in my 70T engine compartment. Push button type electrical switch, wires on the other end seem to also be disconnected.
Any clue? Thanks in advance.
Ulrich
Found loose in my 70T engine compartment. Push button type electrical switch, wires on the other end seem to also be disconnected.
Any clue? Thanks in advance.
Ulrich
maybe an MFI Microswitch
Early 911S Registry #750
1970 911E - The Good Stuff
2001 Toyota Landcruiser
Where was it located? Is it possible a previous owner set-up a remote starter switch?
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Jon
6?' 303129
Ulrich, that is for overrun fuel cutoff on a '70T. The "Speed switch" actually was used for carbureted cars for a similar function. Do you see the sector-shaped piece on the throttle shaft in the background? That contacts the microswitch.
1966 911 #304065 Irischgruen
The switch prevents that burbbly backfiring you get on deacceleration and while changing gears. On MFI cars it activates a fuel cut off soleniod and is controlled by an electronic box that is located on the left relay/fuse panel. Quite clever, the box senses if the RPMs are above 2500 and once the microswitch is depressed when you go "off" throttle, it activates the fuel cut off soleniod preventing fuel over run and thus the backfiring. Not sure how it exactly works on carburated cars but I just fixed mine and it's like night and day, no more embarassing popping when you slow down for a turn or when shifting. Hope this helps, Allan
1971 911S with Factory Recaro Sport Seats, 100% original, Bahia Red/Black
1974 914 2.0 Yellow/Black
2006 Cayman S Artic Silver/Terrecotta (Pending)
When you think in you're in full control, you're just not driving fast enough
Actually, that button activates the "Way Back" machine.
"Sherman, today we are going to visit Gmund, Austria, where the first Porsches were built."
- Professor Peabody
'67 911S
OK Mr. Peabody...
Stefan Josef Koch
RGruppe #194/SRegistry #1063
1969 Porsche 911E, Light Ivory (38 years and counting)
2015 Porsche Cayman S
2012 BMW R1200GS, 1973 BMW R75/5
"An intelligent man is sometimes forced to be drunk to spend time with his fools." -E. Hemingway
Too funny!
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Jon
6?' 303129
Thank you very much for taking the time to answer and the pic.Originally Posted by Gearbox
Ulrich