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Olli from NJ
Samba Member
Joined: May 10, 2007
Posts: 302
Location: Milton,DE
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 Posted: Wed Apr 14, 2021 6:03 pm Post subject: Throttle return springs |
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| I have the CB linkage for my 44 IDFs. The throttle (pedal) feeling is too light. Can you guys suggest some decent springs and a suggestion on how to secure them? |
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Glenn 
Mr. 010
Joined: December 25, 2001
Posts: 76935
Location: Sneaking up behind you
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jeffrey8164
Samba Member
Joined: January 06, 2018
Posts: 3817
Location: Georgia
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| Posted: Wed Apr 14, 2021 6:23 pm Post subject: Re: Throttle return springs |
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I think what you’re saying is that you have a heavy foot.
If everything works properly there is no need for “helper” springs.
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Turning owners into mechanics since 1938.
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db69
Samba Member
Joined: July 22, 2013
Posts: 419
Location: east TN
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| Posted: Wed Apr 14, 2021 6:31 pm Post subject: Re: Throttle return springs |
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I had the same problem even with new springs on the carbs so I got these from mcmaster carr. One on each side. Someone more experienced my tell us why this doesn’t work but its working for me so far. Sorry for the crappy pic but you can see the spring on the end of the cross bar.
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Dale M.
Samba Member
Joined: April 12, 2006
Posts: 20379
Location: Just a tiny bit west of Yosemite Valley
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| Posted: Wed Apr 14, 2021 6:43 pm Post subject: Re: Throttle return springs |
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My solution....
With clockworks spring there is no adjustment of feel of return springs...
My spring of choice is a Century Spring Company C-161 (7/16 X 2-3/4 X .034) its easy to stretch for less tension and to cut shorter for more tension.... It's like an spring assist on any fuel system, you want enough tension to completely close throttle but not enough tension to give you leg cramps....
Dale
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Last edited by Dale M. on Thu Apr 15, 2021 8:19 am; edited 1 time in total |
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oprn
Samba Member
Joined: November 13, 2016
Posts: 12730
Location: Western Canada
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| Posted: Thu Apr 15, 2021 2:42 am Post subject: Re: Throttle return springs |
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I did the same as Dale but it still is not heavy enough. I need to find stiffer springs.
| jeffrey8164 wrote: |
I think what you’re saying is that you have a heavy foot.
If everything works properly there is no need for “helper” springs. |
I am going to wholeheartedly disagree with you on this one! Have you ever tried to drive 3 hours... 5 hours... 10 hours straight holding your right foot up? I have and the leg cramps get excruciatingly painful! After a while nothing helps and you find yourself stopping every 20 minutes to walk off the cramps!
Try it sometime, sit on your couch and hold your right leg up and see how long you last!
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Olli from NJ
Samba Member
Joined: May 10, 2007
Posts: 302
Location: Milton,DE
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| Posted: Thu Apr 15, 2021 3:18 am Post subject: Re: Throttle return springs |
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Some nice suggestions, thanks. Glenn, aren't those the stock Weber springs? The 44s are pretty much new. So I don't think changing those springs would accomplish anything.
So, it sounds like most guys simply rely on the Weber throttle shaft return springs. Way back, I had a GB linkage and don't those have return springs built into them? I also remember the linkage that I had on a set of Kadrons having a spring. I have spent the last 20+ years playing with small block Fords and I have never seen anyone rely only on the throttle shaft return spring that comes on the carb. Usually, a double spring is used for safety incase one spring breaks. |
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jeffrey8164
Samba Member
Joined: January 06, 2018
Posts: 3817
Location: Georgia
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| Posted: Thu Apr 15, 2021 5:37 am Post subject: Re: Throttle return springs |
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| oprn wrote: |
I did the same as Dale but it still is not heavy enough. I need to find stiffer springs.
| jeffrey8164 wrote: |
I think what you’re saying is that you have a heavy foot.
If everything works properly there is no need for “helper” springs. |
I am going to wholeheartedly disagree with you on this one! Have you ever tried to drive 3 hours... 5 hours... 10 hours straight holding your right foot up? I have and the leg cramps get excruciatingly painful! After a while nothing helps and you find yourself stopping every 20 minutes to walk off the cramps!
Try it sometime, sit on your couch and hold your right leg up and see how long you last! |
I suppose I’ve developed the habit of using the side of my shoe against the tunnel.
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Volkswagen!
Turning owners into mechanics since 1938.
“Let he that is without oil throw the first rod”
(Compression 8.7:1) |
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Dale M.
Samba Member
Joined: April 12, 2006
Posts: 20379
Location: Just a tiny bit west of Yosemite Valley
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| Posted: Thu Apr 15, 2021 8:11 am Post subject: Re: Throttle return springs |
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| Olli from NJ wrote: |
Some nice suggestions, thanks. Glenn, aren't those the stock Weber springs? The 44s are pretty much new. So I don't think changing those springs would accomplish anything.
So, it sounds like most guys simply rely on the Weber throttle shaft return springs. Way back, I had a GB linkage and don't those have return springs built into them? I also remember the linkage that I had on a set of Kadrons having a spring. I have spent the last 20+ years playing with small block Fords and I have never seen anyone rely only on the throttle shaft return spring that comes on the carb. Usually, a double spring is used for safety incase one spring breaks. |
Nope, its a spring designed to go on cross bar of dual carb linkages...
See post..
https://www.thesamba.com/vw/forum/viewtopic.php?p=9617134#9617134
Dale
_________________
“Fear The Government That Wants To Take Your Guns" - Thomas Jefferson.
"Kellison Sand Piper Roadster" For Street & Show.
"Joe Pody Sandrover" Buggy with 2180 for Autocross (Sold)
============================================================
All suggestions and advice are purely my own opinion. You are free to ignore them if you wish ... |
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oprn
Samba Member
Joined: November 13, 2016
Posts: 12730
Location: Western Canada
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| Posted: Thu Apr 15, 2021 9:36 am Post subject: Re: Throttle return springs |
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| jeffrey8164 wrote: |
| oprn wrote: |
I did the same as Dale but it still is not heavy enough. I need to find stiffer springs.
| jeffrey8164 wrote: |
I think what you’re saying is that you have a heavy foot.
If everything works properly there is no need for “helper” springs. |
I am going to wholeheartedly disagree with you on this one! Have you ever tried to drive 3 hours... 5 hours... 10 hours straight holding your right foot up? I have and the leg cramps get excruciatingly painful! After a while nothing helps and you find yourself stopping every 20 minutes to walk off the cramps!
Try it sometime, sit on your couch and hold your right leg up and see how long you last! |
I suppose I’ve developed the habit of using the side of my shoe against the tunnel. |
Yes that helps for sure but even that isn't enough for me. Partly because of my height and the fact that the seat does not go far enough back to get a better angle on my ankle in the Manx copy..
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kangaboy
Samba Member
Joined: August 28, 2010
Posts: 1063
Location: St. Louis, Mo
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| Posted: Thu Apr 15, 2021 1:25 pm Post subject: Re: Throttle return springs |
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I've been going through the same issues of light pedal pressure lately. After going back and forth on where to put another spring, I decided on the actual gas pedal. There was already a small hole in the pedal arm, and then I was able to bring it back to the bottom pin that holds the pedal to the assembly. My thought process was that as long as everything was working ok in the back, it would be a lot better to have the excess spring pressure on just the pedal, instead of the throttle shafts on the throttle body/carbs that may cause premature wear.
Just my thoughts...
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FreeBug
Samba Member
Joined: March 12, 2012
Posts: 4278
Location: deepest, darkest Switzerland
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| Posted: Thu Apr 15, 2021 2:21 pm Post subject: Re: Throttle return springs |
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1st make sure the acceerator cable, pedal, pedal wheel, linkage, etc are free and well lubed. Do what it takes to get the cable ans all moving as freely as possible. Make sure there are no kinks in the cable, straight as possible, it really is drive-by-wire.
Type 3s had springs on the carbs, for inspiration. |
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mikedjames
Samba Member
Joined: July 02, 2012
Posts: 2742
Location: Hamble, Hampshire, UK
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| Posted: Sat Apr 17, 2021 8:39 am Post subject: Re: Throttle return springs |
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That linkage will not like being pulled harder down ( spring on carb) or with forwards pull due to extra coil spring on the bar , and it will wear faster.
Put spring in line with the throttle cable, or at the pedal end.to preserve the linkage.
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