 'Cooling flaps' in top of engine tin, Cable activated? How do these function? |
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| johnnie5 |
 Feb 6 2009, 01:38 PM
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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... |
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| tat2dphreak |
Oct 13 2009, 09:14 PM
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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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| ericread |
Oct 13 2009, 09:27 PM
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The Viper Blue 914 Group: Members Posts: 2,177 Joined: 7-December 07 From: Irvine, CA (The OC) Member No.: 8,432 Region Association: Southern California |
QUOTE(tat2dphreak @ Oct 13 2009, 08:14 PM)  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. (IMG:style_emoticons/default/agree.gif) Very well said! Eric |
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Posts in this topic
johnnie5 'Cooling flaps' in top of engine tin Feb 6 2009, 01:38 PM
type47 the flaps are "cooling" flaps that diver... Feb 6 2009, 02:28 PM johnnie5 Ok, so its thermostat activated - that makes sense... Feb 6 2009, 02:41 PM
blitZ
Ok, so its thermostat activated - that makes sens... Feb 6 2009, 02:46 PM ericread Here's some classic pictures:
This picture ha... Feb 6 2009, 02:52 PM SirAndy
This is a picture of the thermostat, which fits n... Feb 6 2009, 03:09 PM maf914 A key feature of the spring loaded cooling flaps i... Feb 6 2009, 03:27 PM johnnie5 Thanks everyone, for the fine explanations and pic... Feb 6 2009, 03:49 PM ericread
Thanks everyone, for the fine explanations and pi... Feb 6 2009, 05:37 PM Joe Ricard The thermostat controls the warming up of the engi... Feb 6 2009, 05:47 PM Keoni914 Interesting information for us newbies! Thank... Aug 31 2009, 08:52 PM type47
One question please, does one need to move the po... Aug 31 2009, 10:02 PM rjames My cable is fraying from where it is rubbing on th... Aug 31 2009, 09:01 PM StratPlayer Pic of thermostat and pulley cable sits in. You c... Sep 1 2009, 11:42 AM StratPlayer gdss Sep 1 2009, 11:45 AM mtndawg This is where it goes through the tin. You can als... Sep 1 2009, 12:45 PM Vacca Rabite Keep in mind - while the flaps are supposed to fai... Sep 1 2009, 12:51 PM RiqueMar
Keep in mind - while the flaps are supposed to fa... Oct 11 2009, 12:21 AM 7275914911 not meaning to :hijacked: but
If you run them O... Oct 11 2009, 07:25 AM Jacob Are these thermostats still available? Oct 11 2009, 09:14 AM tat2dphreak
the air will not be directed properly, but you ca... Oct 11 2009, 09:33 AM McMark
Don't do it. You will not get any airflow th... Oct 11 2009, 10:55 AM SirAndy
Don't do it. You will not get any airflow t... Oct 11 2009, 12:29 PM RiqueMar
[quote name='McMark' post='1224591' date='Oct 11 ... Oct 11 2009, 01:00 PM SirAndy
What about keeping the flaps in, but always in co... Oct 11 2009, 01:12 PM 7275914911
Don't do it. You will not get any airflow t... Oct 11 2009, 01:10 PM tat2dphreak
:agree: wes just took the next step and removed t... Oct 11 2009, 01:23 PM RiqueMar
:agree: wes just took the next step and removed ... Oct 11 2009, 02:32 PM RiqueMar As I said, I was considering this, so here's s... Oct 11 2009, 11:38 PM SirAndy
The second, is the flaps in the 'cooling... Oct 12 2009, 12:17 AM ME733 :popcorn: ..well ..NOT having any air flaps. Diver... Oct 12 2009, 12:18 PM SirAndy
:popcorn: ..well ..NOT having any air flaps. Dive... Oct 12 2009, 12:47 PM Dave_Darling ... I have never had ANY repeat ANY oil coolin... Oct 12 2009, 04:57 PM ME733
... I have never had ANY repeat ANY oil cooli... Oct 13 2009, 12:32 PM SirAndy
I have built plenty of street cars without the ... Oct 13 2009, 01:34 PM Dave_Darling ...Well Dave, for you to say the ..No flaps needed... Oct 14 2009, 09:47 AM ericread
..well ..NOT having any air flaps. Diverters at a... Oct 13 2009, 01:42 PM McMark
WHAT!? Since most of the cars here are daily... Oct 12 2009, 01:04 PM ME733
WHAT!? Since most of the cars here are dail... Oct 12 2009, 01:44 PM RiqueMar
[quote name='McMark' post='1225059' date='Oct 12 ... Oct 12 2009, 02:43 PM SirAndy Motor - A machine that converts other forms of ene... Oct 12 2009, 03:22 PM McMark :barf:
Oh man. Talking about keeping motors ALIVE... Oct 12 2009, 04:35 PM rhodyguy if i put an oil cooler in one of the wheelwells do... Oct 13 2009, 12:41 PM ME733
if i put an oil cooler in one of the wheelwells d... Oct 13 2009, 12:56 PM McMark
So please explain to me how the same motor on the... Oct 13 2009, 01:52 PM ME733 :popcorn: ...WELL I am exasperated at the lack of ... Oct 16 2009, 02:07 PM ericread
:popcorn: ...WELL I am exasperated at the lack of... Oct 16 2009, 02:30 PM Cupomeat
:popcorn: ...WELL I am exasperated at the lack of... Oct 16 2009, 02:45 PM SirAndy
... I am ... creative ... you guys .. are ... mon... Oct 16 2009, 02:53 PM johnnie5
:popcorn: ...WELL I am exasperated at the lack of... Oct 16 2009, 03:52 PM RiqueMar :toke:
Does anybody know if I can buy a new bel... Oct 16 2009, 04:39 PM johnnie5 RiqueMar, I have been running the flaps on my 2056... Oct 16 2009, 05:06 PM neil30076
RiqueMar, I have been running the flaps on my 205... Oct 16 2009, 05:31 PM John Jentz
Does anybody know if I can buy a new bellows t ... Oct 17 2009, 09:15 AM Millerwelds My cable for the flaps is modified to attach to th... Oct 17 2009, 10:16 AM johnnie5
Everything explained here http://www.ratwell.com/... Oct 17 2009, 11:18 AM RiqueMar Johnnie, I'm at the shop right now and will ch... Oct 17 2009, 12:00 PM tat2dphreak ok... live and let live I guess... I fail to see h... Oct 16 2009, 02:15 PM tat2dphreak a bus one would be the same... but still NLA new. ... Oct 16 2009, 06:05 PM pilothyer Wayne....and.....johnnie5... I am almost certain t... Oct 17 2009, 12:22 AM |
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