Home  |  Forums  |  914 Info  |  Blogs
 
914World.com - The fastest growing online 914 community!
 
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.
 

Welcome Guest ( Log In | Register )

 
 Reply to this topicStart new topic
> Won't run under 4000 rpm
newdeal2
post Jul 22 2004, 11:08 AM
Post #1


Unregistered
I have a friend who is having a problem with the car running OK until it's fully warm and then it won't run under 4000 or so rpm's....???

Any ideas?

It's a d jet 1974 2 Liter
Go to the top of the page
+Quote Post
Andyrew
post Jul 22 2004, 11:10 AM
Post #2


Spooling.... Please wait
**********

Group: Members
Posts: 13,376
Joined: 20-January 03
From: Riverbank, Ca
Member No.: 172
Region Association: Northern California
UNDER 4k?

Wrong cam?

Dono..

Cloged injectors? incorrectly timed? Dwell? valves? spark? cloged fuel filter? engine toast?

Dont know...

Andrew
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
BahnBrenner914
post Jul 26 2004, 02:41 PM
Post #3


The girl is gone and all I have now is a beat-up teener
**

Group: Members
Posts: 301
Joined: 22-May 04
From: Gig Harbor and University Place, WA :: School in Angola, IN :: girlfriend in Sarasota, FL
Member No.: 2,094
Region Association: None
check all the vacuum tubes. i was working on my 2.0 and forgot a vaccum tube ( i think it hooked in under the throttle body ) and fired it up. when it idled at 4000 rpm i new something was wrong.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
ChrisReale
post Jul 26 2004, 02:53 PM
Post #4


Sleazy
****

Group: Members
Posts: 2,665
Joined: 20-January 03
From: San Francisco
Member No.: 176
Check the timing, the TPS, do a valve adjust to make sure everything is in tip-top tune.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
john rogers
post Jul 26 2004, 03:02 PM
Post #5


Senior Member
***

Group: Members
Posts: 1,525
Joined: 4-March 03
From: Chula Vista CA
Member No.: 391
I'd say an air leak. Since it happens after it gets warm it is probably a joint such as the intake manifolds to head joint or a seam on the intake plenum or some other place that can open as it gets hot. Use the carb spray with a nozzle and spray around the whole intake system and it should show up. Good luck
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
« Next Oldest · 914World Garage · Next Newest »
 

Reply to this topicStart new topic
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:

 

Display Mode: Standard · Switch to: Linear+ · Switch to: Outline

Track this topic · Email this topic · Print this topic · Subscribe to this forum

- Lo-Fi Version Time is now: 12th May 2024 - 07:21 AM
Invision Power Board v9.1.4 © 2024  IPS, Inc.
All rights reserved 914World.com © since 2002
914World.com is the fastest growing online 914 community!
We have it all, classifieds, events, forums, vendors, parts, autocross, racing, technical articles, events calendar, newsletter, restoration, gallery, archives, history and more for your Porsche 914 ...