Stock Distributor vacuum can questions

Hello Ramva!, I have a dual vacuum dizzy that I'd like to fix. (Bosch
number 0 231 176 048, VW number 021 905 205 A-B) I already cleaned it
and it looks great. Except for one thing. The vacuum can doesn't work.
Can I just replace it with a single vacuum can? Will the arm move the
same with the different vacuum unit? I have a single vacuum, single
advance dizzy laying around that is working perfectly, (Bosch number 0
231 137 035, VW number 113 905 205 T) can I use the vacuum unit from
this dizzy in the first one?

This dizzy is going into an all stock 1300cc engine (solex 30 pict-1
carb) that I plan to have as a spare. What else can you tell me about
this two distributors? which one is better for this application?

TIA,
Karls

I did the same thing with a single vacuum can from Aircooled.net but it
wasn't a direct replacement. I had to put an S-bend in the arm to get
it to line up when it was mounted and there was a gap at the top. I
filled the gap with silicone sealer and the distributor is working fine
on my bug.

If I had to do it again, I would have drilled a new pair of mounting
holes to give the part the proper orientation. If there's any chance
the distributor has problems, a whole new one from Aircooled.net would
be the way to go.

Tony

Karls wrote:
> Hello Ramva!, I have a dual vacuum dizzy that I'd like to fix. (Bosch
> number 0 231 176 048, VW number 021 905 205 A-B) I already cleaned it
> and it looks great. Except for one thing. The vacuum can doesn't work.
> Can I just replace it with a single vacuum can? Will the arm move the
> same with the different vacuum unit? I have a single vacuum, single
> advance dizzy laying around that is working perfectly, (Bosch number 0
> 231 137 035, VW number 113 905 205 T) can I use the vacuum unit from
> this dizzy in the first one?
>
> This dizzy is going into an all stock 1300cc engine (solex 30 pict-1
> carb) that I plan to have as a spare. What else can you tell me about
> this two distributors? which one is better for this application?
>
> TIA,
> Karls
>

Your 30 pic carb delivers a completely different vacuum signal.
The 113T dist is the correct one for a 30 carb. It is vacuum ONLY advance. It has no centrifugal
advance.
Beetle 1970 * 1600 Manual Trans

Distributor: VW 113-905-205T, Bosch 0231 137 036
Coil: 00 015 (Blue Coil: 00 012)
Vacuum Can: 07 024
Timing Set At:: 0deg TDC @ 800-950rpm w/strobe w/vacuum hose disconnected and plugged
Advance/Retard Range: Vacuum (Advance Only): 17-19deg @ 1.3 In. Hg, 32-35deg @ 3.2 In. Hg
This vacuum unit is very large, because of the vacuum signal. Do not put it on the 021 A-B dist. The
A-B dist was designed for:


Bus & Pickup 1975-Early 1976 * 1800 (75), 2000 (76) Manual Trans

Distributor: VW 021-905-205AB, 0231 176 048, 022-905-205AB, 0231 181 012
Coil: 00 012
Vacuum Can: 07 125
Timing Set At:: 5deg ATDC @ 800-950 rpm w/strobe, vacuum hose(s) connected
Advance/Retard Range: Vacuum: 8-11deg Adv @ 7.9 In. Hg, 11-13deg Ret @7.9 In. Hg; Centrifigual:
11-17deg @ 2000 rpm, 21-25deg @ 3600 rpm
There is no way a 30 pic carb will put out enough vacuum to give you any vacuum advance. The 30 pic
puts out a max of about 3.5 inches.

Years ago, when the vacuum unit died, the dist had zero advance. So some brainchild came out with
the 'Screamer Kit'. It contained a 009 dist and the blue coil. The engine screamed because it now
had advance!

I do not advocate a 009 whatsoever, but in your case: If the 113T dist is totally not usable then
you will either need to use the 009 or shop around for a good used 113T.

The above dist specs come from he http://www.oldvolkshome.com/ovhignbo.htm

Someone else mentioned a SVDA dist. But using a 30 pic carb means the SV part will not work. Go to
this link and scroll down:
http://www2.cip1.com/ProductDetails....%2D905%2D2 05

You will see that 3.5 inches of HG gives you 1 degree of advance using the Bruck and none using the
OEM dist.

The SVDA works on the 34 pic carbs on DP engines. The vacumm signal map is correct for it.


"Karls" > wrote in message
ups.com...
> Hello Ramva!, I have a dual vacuum dizzy that I'd like to fix. (Bosch
> number 0 231 176 048, VW number 021 905 205 A-B) I already cleaned it
> and it looks great. Except for one thing. The vacuum can doesn't work.
> Can I just replace it with a single vacuum can? Will the arm move the
> same with the different vacuum unit? I have a single vacuum, single
> advance dizzy laying around that is working perfectly, (Bosch number 0
> 231 137 035, VW number 113 905 205 T) can I use the vacuum unit from
> this dizzy in the first one?
>
> This dizzy is going into an all stock 1300cc engine (solex 30 pict-1
> carb) that I plan to have as a spare. What else can you tell me about
> this two distributors? which one is better for this application?
>
> TIA,
> Karls
>
>