thermostat

  1. T

    Thermostat Housing Feed Tubes

    Does anyone know the size of the inlet and outlet tubes to the coolant tank from the thermostat housing? I'm rebuilding an '84 FI engine and the larger tube is totally rusted away to nothing, while the smaller tube is functional, but could use attention too. The usual suspects only seem to carry...
    • TheTallOne
    • Thread
    • box cooling thermostat thermostat feed tubes thermostat housing thermostat housing nipples thermostat nipples x19
    • Replies: 11
    • Forum: Workshop Forum
  2. fastfiat81

    Alternative Thermostat for the X

    I've been working on the cooling system of my X lately. I replaced the radiator with a MWB aluminum, water pump with a GMB stamped impeller and a new thermostat. Brought it up to temp at idle and all is working perfectly. Temp stabilizes just under 190F and the fan kicks on one tick above...
    • fastfiat81
    • Thread
    • box cooling box hvac box thermostat cooling thermostat thermostat info
    • Replies: 14
    • Forum: Workshop Forum
  3. lidox19

    Thermostat design differences

    I just bought a new old stock Wahler WTH181f 75degC thermostat. When comparing it with a Quinten Hazel QTH181 I have I noticed a few interesting design differences that may influence coolant flow. Most noticeable was the difference in the size of the opening that the coolant flows through when...
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