 Accelerator will not return to idle |
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| tornik550 |
 Jul 17 2008, 09:24 PM
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#1
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Senior Member  Group: Members Posts: 1,248 Joined: 29-January 07 From: Ohio Member No.: 7,486 Region Association: None  |
I have weber 40 idf carbs with a bugpack linkage. Is there supposed to be a spring on the accelerator pedal that returns the pedal idle or are the springs on the carbs the only springs to return the pedal to idle?
Thanks again- Steve |
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Replies(1 - 11)
| rebelmdot |
Jul 17 2008, 09:40 PM
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#2
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914ini Group: Members Posts: 224 Joined: 25-January 08 From: Tennessee Member No.: 8,625 Region Association: South East States |
Spring on Carb is the only one. I had similar problem and had to get a heavy duty spring to accomplish the idle release that I wanted. If you want, I can take a picture of what I did.
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| SGB |
Jul 17 2008, 09:54 PM
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#3
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just visiting Group: Members Posts: 4,086 Joined: 8-March 03 From: Huntsville, AL Member No.: 404 Region Association: South East States |
I have Webers, but use 3 springs; one at the end of the cable and attatched to the firewall, and one on each carb between the linkage and the base plate. For me, it helps fully close both carbs at idle.
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| tornik550 |
Jul 18 2008, 07:29 AM
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#4
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Senior Member Group: Members Posts: 1,248 Joined: 29-January 07 From: Ohio Member No.: 7,486 Region Association: None |
QUOTE(rebelmdot @ Jul 17 2008, 11:40 PM)  Spring on Carb is the only one. I had similar problem and had to get a heavy duty spring to accomplish the idle release that I wanted. If you want, I can take a picture of what I did. Thank you for your response. If it is not too much of a problem, would you mind taking a pic of the springs? The springs that come with the kit are very wimpy. |
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| rebelmdot |
Jul 18 2008, 07:51 AM
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#5
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914ini Group: Members Posts: 224 Joined: 25-January 08 From: Tennessee Member No.: 8,625 Region Association: South East States |
I made that little piece to accomodate the large spring. We have a store called Tractor Supply Company where I got them. I bought several in different lengths and stiffnesses before I go this one right, but I will tell you, my throttle snaps back.
   QUOTE(tornik550 @ Jul 18 2008, 08:29 AM) QUOTE(rebelmdot @ Jul 17 2008, 11:40 PM) Spring on Carb is the only one. I had similar problem and had to get a heavy duty spring to accomplish the idle release that I wanted. If you want, I can take a picture of what I did. Thank you for your response. If it is not too much of a problem, would you mind taking a pic of the springs? The springs that come with the kit are very wimpy. |
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| tornik550 |
Jul 18 2008, 08:18 AM
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#6
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Senior Member Group: Members Posts: 1,248 Joined: 29-January 07 From: Ohio Member No.: 7,486 Region Association: None |
QUOTE(rebelmdot @ Jul 18 2008, 09:51 AM) I made that little piece to accomodate the large spring. We have a store called Tractor Supply Company where I got them. I bought several in different lengths and stiffnesses before I go this one right, but I will tell you, my throttle snaps back. QUOTE(tornik550 @ Jul 18 2008, 08:29 AM) QUOTE(rebelmdot @ Jul 17 2008, 11:40 PM) Spring on Carb is the only one. I had similar problem and had to get a heavy duty spring to accomplish the idle release that I wanted. If you want, I can take a picture of what I did. Thank you for your response. If it is not too much of a problem, would you mind taking a pic of the springs? The springs that come with the kit are very wimpy. Thanks for the pics. We have a TSC a few minutes from my house. I will head up there this weekend and rig something up. Thanks, Steve |
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| jmill |
Jul 18 2008, 08:38 AM
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#7
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Green Hornet Group: Members Posts: 2,449 Joined: 9-May 08 From: Racine, Wisconsin Member No.: 9,038 Region Association: Upper MidWest |
He's got a single and you have duals. If you add a spring run one at the center of the linkage. If you run a spring at each carb you have to get the geometry the same on both. Otherwise the difference in spring pressure will tweak the linkage and your carbs will be out of sync.
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| Cap'n Krusty |
Jul 18 2008, 08:59 AM
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#8
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Cap'n Krusty Group: Members Posts: 10,794 Joined: 24-June 04 From: Santa Maria, CA Member No.: 2,246 Region Association: Central California |
Too much spring can be worse, for the car, than no spring at all. Before you spend the money, check the pedal bushings and the cable itself. The Cap'n
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| rebelmdot |
Jul 18 2008, 09:37 AM
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#9
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914ini Group: Members Posts: 224 Joined: 25-January 08 From: Tennessee Member No.: 8,625 Region Association: South East States |
Cap'n, I am relatively new to this, and I did this in an effort to solve the problem of poor return that I was having. Can you elaborate on what potential problems I could have by putting that big spring on? Thanks.
QUOTE(Cap'n Krusty @ Jul 18 2008, 09:59 AM) Too much spring can be worse, for the car, than no spring at all. Before you spend the money, check the pedal bushings and the cable itself. The Cap'n |
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| rhodyguy |
Jul 18 2008, 11:20 AM
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#10
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Chimp Sanctuary NW. Check it out. Group: Members Posts: 22,193 Joined: 2-March 03 From: Orion's Bell. The BELL! Member No.: 378 Region Association: Galt's Gulch |
(IMG:style_emoticons/default/agree.gif) x2 w/the cap'n on this one. the cable pivot piece has a shaft that inserts into the pictured tube in the the box assem. the pivot tube may still have the old plastic bushings (that have been removed on this box). the bushings wallow and the pivot shaft sits cockeyed and can feel bound up. i chased a slow to return to idle issue. bigger springs only made matters worse. i installed the 2 small bronze bushings that come in the bushing kit and the pivot was smooth as glass. you may note a loud sound while pushing on the pedle also.
k Attached image(s)   
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| davep |
Jul 18 2008, 11:33 AM
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#11
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914 Historian Group: Benefactors Posts: 5,220 Joined: 13-October 03 From: Burford, ON, N0E 1A0 Member No.: 1,244 Region Association: Canada  |
The pedal itself should provide some spring action. New ones do, worn out ones don't.
The bushings in the pedal cluster require regular maintenance. Brake fluid will cause the plastic bushings to swell and bind. Annual inspections can warn of impending failure. A few people on the forum offer cluster rebuild services. |
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| VaccaRabite |
Jul 18 2008, 11:48 AM
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#12
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En Garde! Group: Admin Posts: 13,616 Joined: 15-December 03 From: Dallastown, PA Member No.: 1,435 Region Association: MidAtlantic Region 
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The Weber tech manual for VW applications suggests adding a return spring to the carb linkage arm to make sure it closes. This is for dual carbs, obviously.
Zach |
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