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 )

> Help with Weber Carb not returning to idle
Tastyplacement
post Apr 3 2017, 08:54 PM
Post #1


Newbie
*

Group: Members
Posts: 39
Joined: 31-August 16
From: Austin, TX
Member No.: 20,358
Region Association: MidAtlantic Region



Oh man, I am up a creek. I am installing the Tangerine cable system and one carb is fine, but after I installed the pulley, one carb is binding and will ALMOST return to idle, but it is binding on something. The carbs are rebuilt but I did not replace throttle shaft bearings. The carb works fine throughout it's range of motion except for the last 10 degrees where it should return to idle. If you let it snap shut, it shuts, but if you ease off, it sticks.

I have had this freaking carb and cable system apart and back together 5 times and don't know where to look. Carbs are Made in Spain 40 IDF
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
 
Reply to this topicStart new topic
Replies
Tastyplacement
post Apr 4 2017, 09:45 AM
Post #2


Newbie
*

Group: Members
Posts: 39
Joined: 31-August 16
From: Austin, TX
Member No.: 20,358
Region Association: MidAtlantic Region



Ok, thank you guys. To finish this off, here is what was going on, and upon inspection I can see that this had been happening to a lesser extent:

one of the throttle stops was not tight enough on the throttle shaft, so the circular spring was pulling it out of alignment. Upon tightening the bolt at the end of the throttle shaft, it pushed the askew throttle stop against the carb. I eased off the nut, lubricated and it snaps right back to idle.

Regarding the Tangerine cable system, you HAVE to find a way to put the locking tabs back on the throttle shaft nut so you can leave that nut just a tad loose.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
ChrisFoley
post Apr 4 2017, 09:48 AM
Post #3


I am Tangerine Racing
*****

Group: Members
Posts: 7,986
Joined: 29-January 03
From: Bolton, CT
Member No.: 209
Region Association: None



QUOTE(Tastyplacement @ Apr 4 2017, 11:45 AM) *


Regarding the Tangerine cable system, you HAVE to find a way to put the locking tabs back on the throttle shaft nut so you can leave that nut just a tad loose.

I use a dab of Blue loctite instead of the locking tabs.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post

Posts in this topic


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

 



- Lo-Fi Version Time is now: 9th May 2025 - 11:26 AM