HIF6, throttle spring, choke lever

mtb_tuli

Active Member
have given away the carbs for mild blast cleaning and then have taken them aparat and refitted with a Burlen service kit. On the carb you can see on the photo, the spring tensioner for the main throttle shaft looks a little bit "unsafe" (did not make a photo here before) and the large spring end sits in his bracket only for 1-2 mm, but I cannot fix it any other like this.
Then, I noticed when dismantling the thing, that the choke lever unit was bended curiously. As a German I do not like bended parts on my carb, so I got everything "straight".
Now, when the choke lever is activated, it collides with the throttle linkage.
Before I bend it again o_O, is this normal ?
DSC_0309.JPG DSC_0310.JPG
 
on the first picture it looks like the "ellbow" passes the throttle linkage easily, but on the photo with the blue pencil you can see....
DSC_0271.JPG DSC_0273.JPG
 
They shouldn't touch apart from the fast idle screw coming into contact with the cam. I've got an old HIF6 around here somewhere, I'll try to find it and have a look to see what may be going on.
 
Just returned from my garage. Think, I know, why. On this carb there was a washer, which is thicker than a normal washer, around 3 mm, I think. I used it under the choke lever, so it came "out" and touched the throttle linkage. I´m sure, it was there and so someone bend the levers back. Now it looks ok. It´s not clear to me, where this washer makes sense. Now fitted it under the throttle linkage (long) nut. The spring for the throttle makes me crazy. Tried to bend it somehow, but it´s around 10 mm too short. At the moment it works, but I will have to look for a new one.
 
on the first picture it looks like the "ellbow" passes the throttle linkage easily, but on the photo with the blue pencil you can see....
View attachment 10303

Sorry to jump on your thread but I see something in your photo and have a question myself please.
The fast idle screw in your pic that acts on the choke cam is head down and has a domed head, on my carbs the screw is the other way up, does not have a domed head and the end of the thread acts on the cam with the locknut above the lever. The choke has always been very stiff to pull on.
Have I got the wrong bolts or was there a change - 72 car.
Thank you, but your pic is excellent - sorry for the hijack.
 
The fast idle screw in your pic that acts on the choke cam is head down and has a domed head, on my carbs the screw is the other way up, does not have a domed head and the end of the thread acts on the cam with the locknut above the lever. The choke has always been very stiff to pull on.

It should be the way it's shown in the pic. The opposite way up to the idle screws. It should come into contact with the cam when the centre of the bolt head is in line with the line on the cam.
 
Hijacker :)
My car is 1974, but from my point of view it makes more sense to have the head of the screw acting on the choke cam.
The other carb looks the same and I´m quite sure, this part of the carbs have never been touched before.
But, the cam of the choke will lift the throttle very little, so if you choke is stiff, maybe it helps to take off the rod, which connects the carbs and check, if the starter units move without problem.
 
Ah ha thank you both. I rebuilt the starter units so all good there, I will change the screws.

I owe you a hijack Jorg :)
 

I had a look at the carbs I have here, and the single one is from a 2200SC, which is different, as is the V8 pair, which are from an SD1, so I can't be any more help other than to say that if you straightened the choke lever for no other reason than you noticed it was bent, and you now find it fouls the throttle on reassembly then bend it back again.....
 
thanks for your help, Harvey. See my answer 7:14 pm. Honestly, I do not know, for which reason that (thick) washer is, but now it works, and the cam of the choke lever runs in the middle of the screw head.
 
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