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Old 05-07-2009, 04:04 PM   #1
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Default Sodding carb !! progressive webber

Stressed out today had all this sorted the other day and on the way to Goodwood yesterday I lost throttle. The cable had come loose from the grub screw that goes through the throttle arm.

The end piece snapped off (top line) but we managed to secure it on and get there but since then the throttle arm on the carb is not fully returning, therefore idling far too high.

Idle screw adjusted and cable adjusted but can't seem to fix it.

The spring is on the the grooved line so is nice and taught but I when I manually push it back it still has a couple of mill and then it's idling nice and low. problem is it won't do this on it's own accord.

The arm has been welded/customised so I can't have a go at bending it as it will probably snap.

Suggestions????


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Old 05-07-2009, 06:37 PM   #2
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have had similar prob with my 32 /36 and having to push manually to get to idle properly. fitted bigger return spring - problem sorted. my carb is facing the other way though. I did have it the same way as yours but turned it 180 degrees and now have the return spring on tinware. took an hour but prob sorted. Hope this may help. good luck
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Old 05-07-2009, 08:26 PM   #3
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beetlist, do you have any pics of your setup. Interested in how you got it 180' around. We have the same setup as slambam atm on a beetle and it can be difficult to get at the adjusting screws etc!
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Old 05-07-2009, 08:32 PM   #4
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Quote:
Originally Posted by Hedgedwellers View Post
beetlist, do you have any pics of your setup. Interested in how you got it 180' around. We have the same setup as slambam atm on a beetle and it can be difficult to get at the adjusting screws etc!
ditto, would like to see a pic of the set-up.

If I can't sort this within the next 10 days it will either be the train to Cornwall or a sodding hire car.
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Old 05-07-2009, 08:53 PM   #5
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same problem here...with boththe return spring and the adhusters screws

my mechanic rigged up another spring and attached to the engine bay ceiling that now pulls the spirng back all the way.

really would be interested in seeing a pic of the carb turned around to get at the adjsuter screws tho, as i find it virtually impossible to get at them to tune up
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Old 05-07-2009, 09:04 PM   #6
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same here. how did u get the carb turned 180 degrees.
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Old 05-07-2009, 09:07 PM   #7
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Quote:
Originally Posted by nipper View Post
same problem here...with boththe return spring and the adhusters screws

my mechanic rigged up another spring and attached to the engine bay ceiling that now pulls the spirng back all the way.

really would be interested in seeing a pic of the carb turned around to get at the adjsuter screws tho, as i find it virtually impossible to get at them to tune up

Hi,

any chance of seeing this too? I have tried attaching the spring to the filter, but to no avail. Not sure where else I can get a spring onto and whether it will make any difference.

I'm going to have a go at shortening the spring, proly tomorrow as I'm feeling very anti-dub at the moment and need to simmer a while before looking at the problem again!!
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Old 05-07-2009, 11:19 PM   #8
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Hi,

any chance of seeing this too? I have tried attaching the spring to the filter, but to no avail. Not sure where else I can get a spring onto and whether it will make any difference.

I'm going to have a go at shortening the spring, proly tomorrow as I'm feeling very anti-dub at the moment and need to simmer a while before looking at the problem again!!
slam

i will get a picture tomorrow and post it for ya

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Old 06-07-2009, 02:52 PM   #9
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If I chop off the bit of the plate that is on the right hand side of the pic (the plate with the hole for the spring to attach and the bit that is right of where it is attached to the carb), and then loosen this off, I should be able to move it around, tighten and therefore create a bigger distance, in the hope that this help the spring fully return that arm.

Is this a good idea?
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Old 07-07-2009, 11:26 PM   #10
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Slam, did u get a pic in the end?

Also, what you have suggested would work, sounds similar to the kit you can get from dellorto, the 'banana linkage plate!' http://www.dellorto.co.uk/merchandis...sp?PartID=4318
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