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Thread: Vacuum Hoses - size?

  1. #11
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    Yes all around but as you noted 1/8 is close enough at 3.2mm.

    Quote Originally Posted by DMC-81 View Post
    Thanks all! So 3mm all around or just for the heater valve? Also I see that 3mm is roughly equivalent to 1/8 inch.

  2. #12
    Senior Member DMC-81's Avatar
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    Excellent!! Thank you all again.
    Dana

    1981 DeLorean DMC-12 (5 Speed, Gas Flap, Black Interior, Windshield Antenna, Dark Gray)
    Restored as "mostly correct, but with flaws corrected". Pictures and comments of my restoration are in the albums section on my profile.
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  3. #13
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    Hi Dana,
    I was going by memory and double checked the silicone hose size we use for replacing these hoses in the shop and I was wrong.
    THE CORRECT SIZE IS 3.5MM. Sorry for any inconvienance.
    Rob


    Quote Originally Posted by DMC-81 View Post
    Excellent!! Thank you all again.

  4. #14
    Senior Member DMC-81's Avatar
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    Thanks Rob. No inconvenience at all.
    Dana

    1981 DeLorean DMC-12 (5 Speed, Gas Flap, Black Interior, Windshield Antenna, Dark Gray)
    Restored as "mostly correct, but with flaws corrected". Pictures and comments of my restoration are in the albums section on my profile.
    1985 Chevrolet Corvette, Z51, 4+3 manual
    2006 Dodge Magnum R/T (D/D)
    2010 Camaro SS (Transformers Edition)

  5. #15
    Senior Member OverlandMan's Avatar
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    How about the larger vacuum hoses that go into the back of the intake on each side?
    Jeff

  6. #16
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    Quote Originally Posted by OverlandMan View Post
    How about the larger vacuum hoses that go into the back of the intake on each side?
    You must have an automatic trans. as only that application uses a 10mm fitting on the driver side that links it to the A T modulator pipe. Unfortunately that tapers down to about 5mm at the pipe and is not available from DMCH. I'm unaware of a cross reference but the good news is so far the longevity of this molded hose has been very good barring damage. The other side feeds the brake booster on all cars and is also 10mm.
    Rob

  7. #17
    Senior Member DMC-81's Avatar
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    Hi Jeff,

    On my manual car, the driver side is smaller and 5/32" fit. On the passenger side it's bigger, and I didn't replace it but I think it is 3/8"

    Edit: I see Rob responded.
    Last edited by DMC-81; 10-30-2015 at 04:09 PM.
    Dana

    1981 DeLorean DMC-12 (5 Speed, Gas Flap, Black Interior, Windshield Antenna, Dark Gray)
    Restored as "mostly correct, but with flaws corrected". Pictures and comments of my restoration are in the albums section on my profile.
    1985 Chevrolet Corvette, Z51, 4+3 manual
    2006 Dodge Magnum R/T (D/D)
    2010 Camaro SS (Transformers Edition)

  8. #18
    Senior Member OverlandMan's Avatar
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    Perfect. Thank you guys!
    Jeff

  9. #19
    Senior Member Morpheus's Avatar
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    I didn't notice what the OD and the durometer of the small vac hoses were supposed to be... McMaster sells a few:

    https://www.mcmaster.com/#silicone-hose/=14x8u29
    Brandon S.

    2014 Honda Civic EX
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  10. #20
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    Quote Originally Posted by Morpheus View Post
    I didn't notice what the OD and the durometer of the small vac hoses were supposed to be... McMaster sells a few:

    https://www.mcmaster.com/#silicone-hose/=14x8u29
    You don't have to pay M/M's prices AND shipping. Any large, local auto store should have all the hoses you need and they will sell it by the foot. Unless you decide you want to splurge and get all silicone. In that case the Delorean vendors have kits they can sell you and it will be a lot cheaper than trying to buy small quantities on your own.
    David Teitelbaum

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