Radiator Connections / Coolant Fill Question

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • azndeugene
    Advanced Member
    • Sep 2013
    • 192

    #1

    Radiator Connections / Coolant Fill Question

    Hey guys, so I did a whole timing belt and water pump change and now I'm trying to fill the system. I tore the car apart a few months ago so I have forgotten where some connections go[emoji29]
    Where does this go?
    All the coolant seems to be draining out of this "vent"

    Also, does anything connect here?

    And are both of these vents or does the radiator connect to one of these ports on the expansion tank?

    Thanks guys!
    1986 325
    1988 325is 2.7 Stroker
  • SpecM
    R3V Elite
    • Oct 2005
    • 4531

    #2
    the two nipples on the radiator and the coolant res connect together with a small dia hose

    the threaded port is for an auto trans cooler. if you have a manual trans then the port is left open with no worries
    1989 cirrisblau-metallic 325i

    Comment

    • azndeugene
      Advanced Member
      • Sep 2013
      • 192

      #3
      Originally posted by SpecM
      the two nipples on the radiator and the coolant res connect together with a small dia hose

      the threaded port is for an auto trans cooler. if you have a manual trans then the port is left open with no worries
      Thanks for the info SpecM!

      One thing, I only see one nipple on the radiator (the one I took a pic of). Either way i think it should solve my problem of just spilling fluid everywhere haha

      Sent from my XT1254 using Tapatalk
      1986 325
      1988 325is 2.7 Stroker

      Comment

      • uturn
        E30 Modder
        • Dec 2010
        • 983

        #4
        The nipple on the radiator goes to the one on the reservoir with the metal insert. The other nipple on the reservoir is routed to the fender as a drain when your system over-pressurized and the cap lifts. The screws on the radiator, auto tranny oil cooling lines.

        Comment

        • azndeugene
          Advanced Member
          • Sep 2013
          • 192

          #5
          Originally posted by uturn
          The nipple on the radiator goes to the one on the reservoir with the metal insert. The other nipple on the reservoir is routed to the fender as a drain when your system over-pressurized and the cap lifts. The screws on the radiator, auto tranny oil cooling lines.
          Awesome, thank you for clearing that up!

          Sent from my XT1254 using Tapatalk
          1986 325
          1988 325is 2.7 Stroker

          Comment

          Working...