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  1. #1
    New Lancista
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    Switching heater valve question

    I have a '71 Series 2 Fulvia. The heater valve is frozen in place. I have the new valve part and am trying to decide the best approach for making the switch. The input pipe coming from the engine compartment looks fairly new, maybe replaced by the previous owner. I think it can be clamped before removing the valve to prevent coolant from draining into the cabin. My question is whether coolant from the other end or heater box will drain into the cabin instead, from the other side. Am I just better off draining all the coolant to make this switch?

  2. #2
    Active Lancista D5177_55A's Avatar
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    Jun 2011
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    Re: Switching heater valve question

    I’d drain the entire system, but be prepared for some to drain out of the heater matrix. Put an old towel/rags down or tape a bin bag around the footwell.

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