Warm up air flaps in motion, Short video |
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Warm up air flaps in motion, Short video |
Kansas 914 |
Oct 26 2016, 03:39 PM
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#1
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Advanced Member Group: Members Posts: 2,999 Joined: 1-March 03 From: Durango, Colorado Member No.: 373 Region Association: Rocky Mountains |
I was putting the engine tin back on the engine and though I should reattach wire/cable from the bellows to the flapper arm and check it for full operation.
I used a heat gun and it took about 30 seconds - video shortened a bit. It starts out in cold engine mode (flaps diverting air away from cylinders and away from oil cooler). As it warms up it moves to full cooling mode (flaps diverting air across cylinders and oil cooler). https://www.youtube.com/watch?v=fpTWUNm1Qn8 |
pbanders |
Oct 27 2016, 12:34 PM
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#2
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Senior Member Group: Members Posts: 939 Joined: 11-June 03 From: Phoenix, AZ Member No.: 805 |
There are a lot of reasons you want the engine to heat up to operating temperature quickly. A cold motor needs a richer mixture, causing increased emissions, additional cylinder wear, and lower fuel economy. You also want to get the oil up to temperature quickly to drive off any absorbed moisture, reducing internal corrosion and deposits, and preventing the oil from emulsifying with the water and "sludging". That's why keeping the flaps and thermostat working properly is the right thing to do for your engine.
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