Thanks for this bit of wisdom Mike I run an SVDA in my 86 Brazilian DC, but
I'm only pulling it off from one carb. I bet it's running more or less as a
009 dizzy and I think I'll just get me a new 009 and put on there and keep
my SVDA for something with a 34-PICT-3. I never thought I'd say I liked a
34-PICT-3, but with the SVDA, it's my favourite combo. There is an
electronic igntion you can get called Accel I believe it is. It's the
cheaper chinese version of a Pertonix. They will not work stock in an SVDA
due to the entire stack of the trigger disc and rotor being too tall causing
the cap to not sit flush on the distributor. I did manage to make it work
though. I took apart an old junk distributor and put it in my lathe. Then
I put the rotor on the end and using the lathe took off about 3/32" off the
bottom of the rotor. The entire stack fits nicely inside the SVDA and so
far so good! :)
NQ
----- Original Message -----
From: "Mike B" <[email protected]>
To: <[email protected]>
Sent: Tuesday, December 25, 2012 9:43 PM
Subject: Re: [vintagvw] Re: 34Pict-3 article.
The other reason that many volks use the 010, 019 and 009 is due to
running aftermarket dual carb setups. These setups have no central vacuum
source for both carbs. The 009 works better on this setup than most any
vacuum advance unit would.
The factory dual carb setups like late bus and earlier type 3 and 4 had
a large diameter balance tube that ran between the intake manifolds to
even out the gas pulsation due to the boxer design. But the vacuum signal
needs to come from the carb vacuum port that's tapped off near the
throttle plate level for the advance diaphragm. If you just tap vacuum
from one carb, the strength of the vacuum signal isn't as strong as the
centrally-mounted single carb setup. Some people recommend running a
small diameter vacuum line between both car ports and teeing off to the
distributor advance. The retard port on a DVDA would be even harder to
correctly hook-up as most aftermarket dual carbs have no port for this
specifically-timed vacuum signal. Hooking up the retard port on the dizzy
is only necessary for reduced emissions on deceleration, so most people
don't use this anyway.
Mike B.
On 12/25/2012 9:28 AM, No Quarter wrote:
The use of the 009 was originally born out of frustration when
replacement factory distributors couldn't be found or were too expensive
to buy. They worked better than a non-functional distributor, but were a
compromise at best.
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