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Heater flow direction
  • GrimGreaserGrimGreaser
    Posts: 541Platinum Member
    Which way dies the coolant flow through the stepdown heater system? Out of the water pump port into the heater core? Or out of the head through the heater core into the pump?

    Thanks.
    Six in a row makes it GO!
  • J SpencerJ Spencer
    Posts: 366Gold Member
    Out of the head through the heater core, return to the pump

    Jim Spencer
    WNY/Ontario chapter
  • GrimGreaserGrimGreaser
    Posts: 541Platinum Member
    Thanks, just needed to confirm my thinking.
    Six in a row makes it GO!
  • walts garage-53
    Posts: 1,468Platinum Member
    Do you have the Ranco valve in the firewall? If yes, then the outlet on the right side of the head goes to the right side of the Ranco valve, the left side goes to tht top of the heater core, the bottom goes to the water pump as that is what pulls the water through the heater. Walt.
  • onerare39onerare39
    Posts: 526Hitchhiker
    will this help


    [attachment=12508]PB140026-Copy.JPG[/attachment]
    PB140026-Copy.JPG
    800 x 600 - 57K
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