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Old 11-14-2018, 08:56 AM
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GregH GregH is offline
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Up Until Aug/Sept was running with Thermostat and no bypass valve. Engine was typically 180-185F. This is in lake Ontario waters that may get up to 70F in the peak of summer.

Switched over to no thermostat and bypass valve and the temp doesn't even make the needle move, even fully open in bypass mode.

Going to toss the thermostat back in, in the spring and see if cannot get the temps back up and the gauge showing this to make sure the sender is working. Then we'll try things again.

IF... if I find the temp send and gauge are working fine and due to the cold lake I cannot get the temps up over 120, would it be valid to run with the thermostat in AND adjust the bypass valve so more goes through the block? I am assuming that once the thermostat opens, it does block the bypass 100%
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