 flap question ?, bellows question ??? |
|
|
|
Porsche, and the Porsche crest are registered trademarks of Dr. Ing. h.c. F. Porsche AG.
This site is not affiliated with Porsche in any way. Its only purpose is to provide an online forum for car enthusiasts. All other trademarks are property of their respective owners. |
|
|
  |
| jimkelly |
 Jul 7 2006, 06:08 AM
Post
#1
|
|
Delaware USA  Group: Members Posts: 4,969 Joined: 5-August 04 From: Delaware, USA Member No.: 2,460 Region Association: MidAtlantic Region  |
The bellows is connected to a thin wire that is connected to the linkage between the cooling flaps. One flap is open at all times, one flap is open when the engine is warming up and the other is closed - and - vice versa once the engine is warm.
Would the engine run cooler if both flaps were open after engine warmed up ?? See pic and refer to area labled 1 and 2. Thanks! Attached image(s) 
|
   |
 
|
| SLITS |
Jul 7 2006, 07:09 AM
Post
#2
|
|
"This Utah shit is HARSH!" Group: Benefactors Posts: 13,602 Joined: 22-February 04 From: SoCal Mountains ... Member No.: 1,696 Region Association: None  |
Nope!
If you "open" the flap on the pass side of the engine, air will bypass the oil cooler and you'll get a real "hot" engine. (IMG:style_emoticons/default/mad.gif) |
|
|
|
| jimkelly |
Jul 7 2006, 07:17 AM
Post
#3
|
|
Delaware USA Group: Members Posts: 4,969 Joined: 5-August 04 From: Delaware, USA Member No.: 2,460 Region Association: MidAtlantic Region |
oh - so during warm up the passenger flap is open in order to bypass the oil cooler in order to get the engine warm faster - then - once the engine is warm - the passenger flap closes and the drivers flap opens to allow the oil cooler to do its job. thanks
|
|
|
|
| Bartlett 914 |
Jul 7 2006, 07:25 AM
Post
#4
|
|
Advanced Member Group: Members Posts: 2,215 Joined: 30-August 05 From: South Elgin IL Member No.: 4,707 Region Association: Upper MidWest |
They work in unison. They both open or close. They are connected to a common control rod. The one on the drivers side looks open a little. It is held in a different position than the one on the Passenger side which has the oil cooler. There is a bellows thermostat under the motor with a cable to activate the flaps. When cold, the bellows is shorter pulling the flaps. When it is hot, it expands releasing the flaps. If the cable is cut, the flaps are in a position for maximum cooling (normal operation)
Mark |
|
|
|
| jimkelly |
Jul 7 2006, 03:27 PM
Post
#5
|
|
Delaware USA Group: Members Posts: 4,969 Joined: 5-August 04 From: Delaware, USA Member No.: 2,460 Region Association: MidAtlantic Region |
A better pic of the area - no tin.
Attached image(s) 
|
|
|
|
| Aaron Cox |
Jul 7 2006, 03:29 PM
Post
#6
|
|
Professional Lawn Dart Group: Retired Admin Posts: 24,541 Joined: 1-February 03 From: OC Member No.: 219 Region Association: Southern California |
see how the one on the right is ducting air to the cooler?
when it is closed.. 100 percent goes to the cyinders.... |
|
|
|
| Dave_Darling |
Jul 7 2006, 04:21 PM
Post
#7
|
|
914 Idiot Group: Members Posts: 14,985 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California 
|
If you look carefully at the flaps linkage, you'll see that they work in "opposite" ways. The one on the left drops down when the engine cools off, while the one on the right rises.
Now look more carefully at the flaps themselves. Particularly the one on the right side. Notice that the bottom of the flap, when the flap is open, does not meet with the part that sits on top of the oil cooler. In fact, it forms a nice little duct to split some air off and shove it through the cooler. When the flap closes, then bottom end of it blocks off most (all?) of the pathway for air to get into the cooler. If you can find an engine with the top engine tin off, move the flaps around for a while. You'll see what I mean. --DD |
|
|
|
|
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:
|
Lo-Fi Version | Time is now: 14th May 2024 - 11:47 AM |
Invision Power Board
v9.1.4 © 2024 IPS, Inc.