 Fan Housing Flaps Question |
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| lennyhope |
 Aug 31 2012, 03:28 PM
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#1
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Member  Group: Members Posts: 168 Joined: 2-November 11 From: prescot Member No.: 13,736 Region Association: England   |
In the fan housing on a 914.....if the cooling flaps are in the dropped position, is cooling occurring or is it when the flaps are lifted?
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| luskesq |
Aug 31 2012, 03:57 PM
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#2
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Member Group: Members Posts: 276 Joined: 24-October 10 From: Fresno, CA Member No.: 12,303 Region Association: Central California |
Take a look at this site, page down and I believe that will answer your question.
http://bowlsby.net/914/Classic/TechNotebook.htm Keith |
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| lennyhope |
Aug 31 2012, 04:00 PM
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#3
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Member Group: Members Posts: 168 Joined: 2-November 11 From: prescot Member No.: 13,736 Region Association: England |
QUOTE(luskesq @ Aug 31 2012, 10:57 PM)  Take a look at this site, page down and I believe that will answer your question. http://bowlsby.net/914/Classic/TechNotebook.htm Keith Which article sorry? |
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| gothspeed |
Aug 31 2012, 04:15 PM
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#4
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Senior Member Group: Members Posts: 1,539 Joined: 3-February 09 From: SoCal Member No.: 10,019 Region Association: None |
'Lifted' is cooling mode .... (IMG:style_emoticons/default/sunglasses.gif) ....... with the little linkage rod 'tab' pulled up and towards the front of the car.
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| SirAndy |
Aug 31 2012, 04:30 PM
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#5
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Resident German Group: Admin Posts: 42,206 Joined: 21-January 03 From: Oakland, Kalifornia Member No.: 179 Region Association: Northern California |
They "fail" in the full cooling position. Meaning, if the thermostat is disconnected, the flaps will rest in the full cooling position.
For the passenger side, the flaps will be *down* and cover the oil-cooler which routs the max. amount of air to the oil-cooler. On the drivers side, the flaps will be about horizontal giving max. airflow to the cylinders. This arrangement is also the reason why cylinder 3 usually runs hotter than the others and the CHT is located on cylinder 3 for that same reason. (IMG:style_emoticons/default/popcorn[1].gif) |
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| luskesq |
Aug 31 2012, 09:36 PM
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#6
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Member Group: Members Posts: 276 Joined: 24-October 10 From: Fresno, CA Member No.: 12,303 Region Association: Central California |
QUOTE(lennyhope @ Aug 31 2012, 03:00 PM) QUOTE(luskesq @ Aug 31 2012, 10:57 PM) Take a look at this site, page down and I believe that will answer your question. http://bowlsby.net/914/Classic/TechNotebook.htm Keith Which article sorry? Scroll down a bit (perhaps midway and you'll see two sections, first says "Air-cooling flaps: Cold engine position (minimum airflow over oil cooler)", the other for "warm" Good luck Keith |
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| Dave_Darling |
Aug 31 2012, 09:42 PM
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#7
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914 Idiot Group: Members Posts: 15,161 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California 
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QUOTE(lennyhope @ Aug 31 2012, 03:00 PM) QUOTE(luskesq @ Aug 31 2012, 10:57 PM) Take a look at this site, page down and I believe that will answer your question. http://bowlsby.net/914/Classic/TechNotebook.htm Keith Which article sorry? Scroll halfway down the page, then scroll up a little bit. You'll see two pictures of an engine without the engine tin on it, showing the position of the flaps. One is in the "warmup" position, one is in the "it's already warm" position. --DD |
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| JeffBowlsby |
Aug 31 2012, 10:08 PM
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#8
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914 Wiring Harnesses & Beekeeper Group: Members Posts: 8,907 Joined: 7-January 03 From: San Ramon CA Member No.: 104 Region Association: None
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Air-cooling flaps: Cold engine position (minimum airflow over oil cooler)
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| JeffBowlsby |
Aug 31 2012, 10:09 PM
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#9
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914 Wiring Harnesses & Beekeeper Group: Members Posts: 8,907 Joined: 7-January 03 From: San Ramon CA Member No.: 104 Region Association: None
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Air-cooling flaps: Warm engine position (maximum airflow over oil cooler)
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| SirAndy |
Aug 31 2012, 11:50 PM
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#10
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Resident German Group: Admin Posts: 42,206 Joined: 21-January 03 From: Oakland, Kalifornia Member No.: 179 Region Association: Northern California |
QUOTE(Jeff Bowlsby @ Aug 31 2012, 09:09 PM) I'm no T4 expert, but isn't that head with the CHT boss on the wrong side of the motor? (IMG:style_emoticons/default/idea.gif) |
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| jcd914 |
Sep 1 2012, 02:23 AM
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#11
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Advanced Member Group: Members Posts: 2,092 Joined: 7-February 08 From: Sacramento, CA Member No.: 8,684 Region Association: Northern California |
QUOTE(SirAndy @ Aug 31 2012, 10:50 PM) QUOTE(Jeff Bowlsby @ Aug 31 2012, 09:09 PM) I'm no T4 expert, but isn't that head with the CHT boss on the wrong side of the motor? (IMG:style_emoticons/default/idea.gif) Yea but if you make your own FI harness you can put the CHT on either side (IMG:style_emoticons/default/smile.gif) Could be that both heads have the boss. |
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