On 3/8/2012 10:24 PM, Jan Andersson wrote:
> On 3/8/2012 9:34 AM, esowash wrote:
>> Hello new friends-
>>
>> I'm restoring a 1971 Super Vert, and I'm having some engine trouble.
>> Hoping you find citizens will be able to provide some insight.
>>
>> I've set the points and the timing...but when the engine warms, he
>> won't idle. If I manually choke the engine (by closing the butterfly)
>> he'll idle happily.
>>
>> If I advance the timing by about 80 degrees (!!!) and crank the Fast
>> Idle screw in real far, he'll idle again, albeit a bit high. On the
>> road, though, he's all out of things to talk about at 35mph.
>>
>> Adjusting the Bypass and Volume Control screws don't seem to do
>> anything. I've screwed both all the way in and he behaves the same.
>>
>> Thoughts? I'm pulling the carb off this weekend for a thorough
>> cleaning.
>
>
> Before carb tuning, you need to have three things done: ignition timing,
> points gap, and valve adjustment. You only have one more to do. Assuming
> it's a stock engine with aluminum pushrods, set valve lash at 0.15mm
> (0.006") cold. That's overnight, stone cold.
>
> Cleaning out the carburetor is a very good step to take before trying to
> adjust it. Sounds like you may have a clogged idle jet or dirt in the
> passage behind it.
>
> Set the ign advance to 7.5 degrees advanced at idle (when you get it to
> idle) if you have a single vacuum distributor (only one vacuum port in
> the vacuum canister, not two).
>
> When it's time to tackle the carb adjustment, here's a good how-to:
>
> http://www.vw-resource.com/34pict3.html
>
> Check that site inside and out, good info there.
>
> If you have trouble getting it to run right, ask more help here.... it's
> a quiet board these days and we would welcome new discussion.
>
> Also, a picture of your engine bay would be nice, just to see if
> something is out of place or hooked up wrong. Do not post pictures in
> this group, instead upload them to an online internet service like
> Photobucket.com or similar free picture site, and provide us with a link
> to it.
>
> Jan
>


oh yea, as the article says, look for vacuum leaks. Especially at the
intake manifold rubber boots.