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Thread: Coolant Hose from expansion tank to water pump

  1. #1
    Join Date
    Sep 2017
    Location
    Ontario
    Posts
    19
    My Cars
    1991 BMW 850I E31

    Coolant Hose from expansion tank to water pump

    The hose that connects to the lower part of the expansion tank to the water pump was cut into by the belt. There is a small clamp that is around the hose that attaches to the engine (assuming to keep it away from the belt). Were is this loop supposed to be connected to and in what orientation bolt to the bottom or to the top.
    Last edited by Brucha31; 06-21-2018 at 04:56 PM.

  2. #2
    Join Date
    Aug 2007
    Location
    San Francisco, CA
    Posts
    1,570
    My Cars
    1972 3.0 CSi-1988 M6
    5E58A14D-FC66-4DDD-B291-128BBFE780E8.jpgE89A2C0C-4F65-4DDB-A9B5-496E97971F18.jpg

    The coolant hose clamp/holder is attached as shown in pic #1. Pic #2 shows the 2 bolt threaded holes right above the ac pulley. The holder should be mounted to the upper bolt hole, the lower hole is for the belt tensioner mounting bracket. Hope this helps.
    Bert
    91 850i-A
    1972 3.5 CSi (L-jet, Getrag 265 5 speed)
    1988 ///M6
    2021 X3 M40i

    The back to back BIG COUPE” duo

  3. #3
    Join Date
    Sep 2017
    Location
    Ontario
    Posts
    19
    My Cars
    1991 BMW 850I E31
    Thank you, good to know i installed it correctly, I believe the new engine mounts some how changed the orientation of the hose which caused the belt to rub through it. Had to bend the bracket so the new one wouldn't rub as well. it was quite a messy clean up.

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