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Thread: 320i E21 1980 Throttle assembly - what hose goes where?

  1. #1
    Join Date
    Feb 2018
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    1980 BMW 320i USA

    320i E21 1980 Throttle assembly - what hose goes where?

    Hello

    I’m rebuilding/refurbishing a BMW 320i E21 1980 manual and I wanted to know if you had time I have a question regarding the throttle body and its hoses. There are a couple hoses coming out of the throttle body and I’m not quite sure where they go. I can’t find a diagram or reference for it does anyone know where I would find that?

    Thank you,

  2. #2
    Join Date
    Apr 2005
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    Corona California
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    79 320/6 81320i 65malibu
    They are for hot water. Living in Southern California I have not had mine connected for 25 years now on one of mine.

    One goes to the block in the rear I believe - feed hose. The other goes to the steel tube running back off the water pump it has a 90 fitting on it somewhere around #3 I believe.

    Always FUN TO DRIVE - Build Thread & Tech info - 79 320/6 track car build thread -- Videos of track car -Adam in car Auto-x video - Start-up video - 4/2011 Adam's TOP BMW time San Diego BMWCCA - 4-5-15 Dyno break-in run new M20B25 - Exhaust Thread - Link

  3. #3
    Join Date
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    1980 BMW 320i USA
    Quote Originally Posted by OLD MAN View Post
    They are for hot water. Living in Southern California I have not had mine connected for 25 years now on one of mine.

    One goes to the block in the rear I believe - feed hose. The other goes to the steel tube running back off the water pump it has a 90 fitting on it somewhere around #3 I believe.
    Thank you i'll check that
    =D

    that's the same car i'm rebuilding, any upgrades you can recommend?

  4. #4
    Join Date
    Apr 2005
    Location
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    79 320/6 81320i 65malibu
    Quote Originally Posted by emptynoid View Post
    Thank you i'll check that
    =D

    that's the same car i'm rebuilding, any upgrades you can recommend?

    What is the car going to be for? This is the most important question to answer before doing any up grades.

    Where in LA are you? PM me to keep things private if you like.

    Always FUN TO DRIVE - Build Thread & Tech info - 79 320/6 track car build thread -- Videos of track car -Adam in car Auto-x video - Start-up video - 4/2011 Adam's TOP BMW time San Diego BMWCCA - 4-5-15 Dyno break-in run new M20B25 - Exhaust Thread - Link

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