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  1. #1
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    Member No: 23375 Gans will become famous soon enough Gans's Avatar
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    Yes | No

    sqw. why drill hole in thermostat?



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  2. #2
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    Yes | No

    Esp for the six, a few have found >>

    that it aids in bleeding the cooling system.
    Ed in San Jose. BMW CCA member since 1987 (Nr. 62319). Golden Gate Chapter. '97 540i 6 speed. Build Date 3/97. Aspensilber over Aubergine leather.

  3. #3
    Eurodavid
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    +1...

    imho, it truly does helps the bleed process. Plus, as Ed CT mentioned, if your thermostat ever fails in the shut position, at least a little something will be squirting through (though probably not enough to matter, lol). Another thing, you might notice the car takes a tad bit longer to warm up in the morning. Quite a few vehicle mftrs today have drilled small holes for their vehicles thermostat, from what I understand.

    In no way is it required, though ;-)

    Eurodavid

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    And a slower heat up time is better 4 the engine(m

    Maybe not for the occupants that desire almost instant heat.

    Euro, I see your t-stat says 92°C, wonder if that one would fit in my housing. I don't care about slightly lower emissions because the engine is running at a higher temp, I'm more concerned about the pressure developed by running in the 108-110°C range and popping another radiator hose 200 miles from home.

  5. #5
    Ed CT
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    Jim-I saved my old failed tstat if you want it...

    You can see if it's the same OD and profile as your current. (assuming, of course, you also have saved an old one to compare!)

  6. #6
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    Yes | No

    Ed, thanks, I just looked at my old t-stat (m)

    to take some measurements from to see if yours might fit. Guess I forgot it was integrated into the heater assy and not a seperate removable part. It was a good idea for all of a few hours.
    Wayne Carini called me back today, ~$5k to get the old Jag driveable, all else (body work, paint, interior) is extra. He would need to have the car to price the rest.
    Thanks anyways.


  7. #7
    Eurodavid
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    wow, that thing looks intricate & exxxxpensive ;-0

    if you need my old I6 one for any other reason, just give a holler. I know it is out their in the old parts crate, just have to dig it out.

    Eurodavid

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    The radiator cap controls cooling system pressure.


    Ed in San Jose. BMW CCA member since 1987 (Nr. 62319). Golden Gate Chapter. '97 540i 6 speed. Build Date 3/97. Aspensilber over Aubergine leather.

  9. #9
    Ed CT
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    That t-stat is quite different from the I6's LOL

    It looks like the actual thermo-mechanism is different, too. The I6's is your basic t-stat that looks like it could also work in a Rambler American.

    So, Wayne says the price to have a driveable '54 Jag is about $5000? Not too bad, if all you want to do is drive it on weekends. Maybe the body work can be done at home, in the garage, a little at a time, while the car gets to be driven for fun.

  10. #10
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    Not to sure about that, the cap vents when (m)

    the pressure get too high. The lower the coolant temp the lower the pressure.

  11. #11
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    Thanks but it won't fit. New 1 was $55 back in '05






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  12. #12
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    Yes | No

    Trust the Germans to make it complicated...

    must be the Black Forest cuckoo clock heritage. Elegant engineering is when you can make a design one component to provide two (or three) functions with a simple, elegant design.

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