Re: [T3] Carb tuning

[Henrik Larsson <notchback@home.se>]

<x-flowed>Daniel Baum wrote:

> ... the idle was way too high (about 1400), even after 
> letting the engine warm up well. It was also still 
> hunting so I assumed I still had the idle circuit tuned too rich.

> I played about with it for a bit and this is how it goes now:

You seem to have solved exactly the same problem that I have with my 1968 Notch. What did you do?

> How stable is stable? Is it possible to get it so the rpms 
> stay exactly the same all the time? How accurate is my 
> electronic tachometer likely to be?

> Is it worth playing about any more to get 980-990 down to 950, 
> or am I close enough?

VW specifies the idle in a +/- 50 rpm interval and unless you have NOS 
carbs and professional engine testing equipment I'd say you are as close 
as any DIY mechanic would get.

I gave up early using a tachometer for engine tuning, because it was so 
difficult to read. I bought a Optilux (made by Hella) engine tester 
($100) which I think is very good.

Henrik Larsson, Sweden
1964 and 1968 Notches



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