'Cooling flaps' in top of engine tin, Cable activated? How do these function? |
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'Cooling flaps' in top of engine tin, Cable activated? How do these function? |
johnnie5 |
Feb 6 2009, 01:38 PM
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#1
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914 lover Group: Members Posts: 375 Joined: 14-October 08 From: San Diego, CA Member No.: 9,644 Region Association: Southern California |
Just as the title states....
When I was dressing my new motor I noticed these 'reverse' flaps. But have no idea what cable would hook up to the flapper arm, or where it would come from? Or what would activate it? Someone please enlighten me... |
tat2dphreak |
Oct 13 2009, 09:14 PM
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#2
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stoya, stoya, stoya Group: Benefactors Posts: 8,797 Joined: 6-June 03 From: Wylie, TX Member No.: 792 Region Association: Southwest Region |
QUOTE If you remove these, you need to create a new set of air-guides. (IMG:style_emoticons/default/agree.gif) damn physics fucking up everyone's plans again... think of it like a pickup truck(if anyone else saw the mythbusters you'll know what I mean) the air flows out of the frond shroud in motion, but without direction, it will continue on it's path... so cyl 3 would get a little more pressure, but the air above the oil cooler will stay as "a unit of air" with the motion above it creating a cyclone effect that holds a unit of air above the oil cooler, but not pushing it through... engineers use this ability to "carry air" as a unit in the back of a pickup. which acts as part of the aerodynamics even. picture the bed of a truck right ABOVE the oil cooler.... it won't allow air to pass down properly. sure some "seeps" down but the stock flaps actually SPLITS the flow to get the air going in 2 directions. into the oil cooler and above, to the cylinders. the other side acts as an on-off switch basically. Wes fabbed a piece that does the same thing... it directs air traffic to the oil cooler and to the cylinders breaking up the unit of air. does that mean every engine without flaps will fail? no... but they may not last quite as long... may still last a long time, though. think about it this way. the engineers accounted for the thickness of every washer the clearance of every piece... do you think they got to the cooling system of the engine and said "fuck it, lets put little flappy things here, that will be cool, right?" no... that was thought of to, and they wouldn't have put them there if they didn't need SOMETHING... the t-stat is probably more important in cooler climates, but the flaps are important in all climates. |
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