 Decel Valve (Regulator), Do ya need it... |
|
|
|
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. |
|
|
  |
| 2-OH! |
 Aug 24 2004, 01:39 PM
Post
#1
|
|
Senior Member  Group: Members Posts: 552 Joined: 17-October 03 From: Santa Clarita, Kalifornication Member No.: 1,253  |
1975 - 2.0 -FI - Stock
This car came from the PO with no Decel Valve...All the vacuum ports are plugged...It ran OK before the engine rebuild but now I am having a hell of a time with idle and decel... What does this thing do, exactly...I assume they are all the same, 1.7, 1.8, 2.0 .... 2-OH! |
   |
 
|
| SirAndy |
Aug 24 2004, 02:21 PM
Post
#2
|
|
Resident German Group: Admin Posts: 41,651 Joined: 21-January 03 From: Oakland, Kalifornia Member No.: 179 Region Association: Northern California |
not needed. it smoothes the transition from higher rpm to idle on decel ...
without it, you get a more instant drop in rpm, kinda like a lightened flywheel. i ran my 1.8L without decel valve and without AAR. all unneeded ports were plugged. ran great, no problem with idle etc ... (IMG:style_emoticons/default/wink.gif) Andy |
 |
|
| 2-OH! |
Aug 24 2004, 03:45 PM
Post
#3
|
|
Senior Member Group: Members Posts: 552 Joined: 17-October 03 From: Santa Clarita, Kalifornication Member No.: 1,253 |
Andy:
Ok...Any other thoughts on my crummy idle situation and hunting at low (idle) RPM... 2-OH! |
|
|
|
| Mike D. |
Aug 24 2004, 03:48 PM
Post
#4
|
|
OK, It runs now, and pretty good too! Group: Members Posts: 1,445 Joined: 3-January 03 From: Santa Clarita, Ca Member No.: 85 Region Association: None 
|
It runs air around the throttle, from air cleaner to plenium, when the buterfly valve slams shut, allowing air to enter, dilute fuel mixture and lowering vacuum. (I think)
probably not needed, unless your trying to pass smog... Mike D. |
|
|
|
| SirAndy |
Aug 24 2004, 04:02 PM
Post
#5
|
|
Resident German Group: Admin Posts: 41,651 Joined: 21-January 03 From: Oakland, Kalifornia Member No.: 179 Region Association: Northern California |
QUOTE(2-OH! @ Aug 24 2004, 02:45 PM) Any other thoughts on my crummy idle situation and hunting at low (idle) RPM... vacuum leak ... do the spray & listen thing to find it. (IMG:style_emoticons/default/wink.gif) Andy |
|
|
|
| qa1142 |
Aug 24 2004, 04:09 PM
Post
#6
|
|
Whiplash Group: Members Posts: 1,514 Joined: 1-June 04 From: Lake Zurich, Illinois Member No.: 2,140 |
What is AAR?
|
|
|
|
| SirAndy |
Aug 24 2004, 04:12 PM
Post
#7
|
|
Resident German Group: Admin Posts: 41,651 Joined: 21-January 03 From: Oakland, Kalifornia Member No.: 179 Region Association: Northern California |
QUOTE(qa1142 @ Aug 24 2004, 03:09 PM) What is AAR? Auxiliary Air Regulator bypasses cold air into the throttlebody when the car is cold, helps with cold-start. i never missed it here in CA, but i'm sure the guys in canada won't run without it. (IMG:style_emoticons/default/wink.gif) Andy |
|
|
|
|
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:
|
Lo-Fi Version | Time is now: 21st May 2024 - 07:52 PM |
Invision Power Board
v9.1.4 © 2024 IPS, Inc.