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Thread: Any 1969 gurus know the part number of the SECOND thermo-time switch?

  1. #1

    Any 1969 gurus know the part number of the SECOND thermo-time switch?

    I'm working on my 1969 911S and the cold start system. Part of that system is a thermo-time switch (911 617 117 00). For one year only, 1969, our cars had an additional switch mounted right next to the thermo-time switch on the same oval breather cap. It looks the same and the only difference is that it's calibrated for different temperatures. I've seen this referred to as a "time switch".

    I cannot find this part in my PET. The attached image is from the factory manual describing the two switches. Wondering if anyone knows the part number or perhaps has one of these switches?

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  2. #2
    Member #226 R Gruppe Life Member #147
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    My advice is to use the +45* thermo-time-switch on the starting solenoid of the pump and defeat the air filter spray tubes. Gled

  3. #3
    Quote Originally Posted by gled49 View Post
    My advice is to use the +45* thermo-time-switch on the starting solenoid of the pump and defeat the air filter spray tubes. Gled
    I appreciate that, and I know I have options, but I'd prefer to keep the car factory.

  4. #4
    Senior Member beh911's Avatar
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    You are looking for 911 617 113 00. This is the switch for the enrichment solenoid on the pump.

    As you've noted, 911 617 117 00 is for the cold start solenoid on top of the MFI console and is common for later MFI cars.

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    1969 S Coupe #761
    Early S Registry #1624

  5. #5
    Quote Originally Posted by beh911 View Post
    You are looking for 911 617 113 00. This is the switch for the enrichment solenoid on the pump.
    You're the man. Much obliged.

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