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Distributor ID
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duckyde
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PostPosted: Tue Jul 17, 2018 6:35 pm    Post subject: Distributor ID Reply with quote

Hi, I'm wondering if anyone can make out the numbers and identify what distributor I have? I'm wanting to lose the points and upgrade to a contactless ignition. '77 2.0L
Thanks in advance

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Randy in Maine
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PostPosted: Tue Jul 17, 2018 6:38 pm    Post subject: Re: Distributor ID Reply with quote

that would be a 205P. FI bus 76-78
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duckyde
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PostPosted: Tue Jul 17, 2018 7:26 pm    Post subject: Re: Distributor ID Reply with quote

would it be a problem running this on a Bus set up with dual carbs (44idf) and I assume I would need to run a hose for the vacuum advance?
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wcfvw69
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PostPosted: Tue Jul 17, 2018 7:41 pm    Post subject: Re: Distributor ID Reply with quote

duckyde wrote:
would it be a problem running this on a Bus set up with dual carbs (44idf) and I assume I would need to run a hose for the vacuum advance?


That distributor would have had a SVDA vacuum canister on it. They require 200MM hg of vacuum to fully retract the arm.

Many dual carbs DO NOT provide this much vacuum. Many of the dual Weber's don't.
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Wildthings
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PostPosted: Tue Jul 17, 2018 10:25 pm    Post subject: Re: Distributor ID Reply with quote

Whatever it started out to be is most likely not what it is today. The points are likely interchangeable with the stock distributor for your year though.
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Tcash
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PostPosted: Tue Jul 17, 2018 10:37 pm    Post subject: Re: Distributor ID Reply with quote

Someone went to a lot of trouble to grind the numbers off the Dist.
No Vacuum can. It may be a mechanical advance only Dist. now.
Hook it up and see what kind of advance curve it has.

Distributor Bus Bay window ID T2

1976-1978 - * ------- - 021-905-205P - All States, 1979 Federal * 2000
https://www.thesamba.com/vw/forum/viewtopic.php?p=8088624#8088624
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guitarman63mm
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PostPosted: Wed Jul 18, 2018 3:50 am    Post subject: Re: Distributor ID Reply with quote

wcfvw69 wrote:
duckyde wrote:
would it be a problem running this on a Bus set up with dual carbs (44idf) and I assume I would need to run a hose for the vacuum advance?


That distributor would have had a SVDA vacuum canister on it. They require 200MM hg of vacuum to fully retract the arm.

Many dual carbs DO NOT provide this much vacuum. Many of the dual Weber's don't.


I know you know quite a bit more about distributors than I do, but - If our dual carbs didn't provide at least 13-15" of vacuum, how would our brake boosters work? 8" sounds like a lowish bar to clear to me.
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mr. lang
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PostPosted: Wed Jul 18, 2018 4:14 am    Post subject: Re: Distributor ID Reply with quote

lets see, as what this distributor started:
we have:
JFUD 4
0 231 1.. ...
022 905 2.. ..

these are all the JFUD 4 with a 022 VW number:
022 905 205 T -> 0 231 168 009
022 905 205 AA -> 0 231 181 009
022 905 205 AB -> 0 231 181 012
022 905 205 AC -> 0 231 181 014

AC and 181 014 could fit best

022 905 205 AC was released for production in August '74 and made for bus 1.8 liter L-Jetronic Automatic USA Export
stock parts:
points: 1 237 013 116
condenser: 1 237 330 271
rotor: 1 234 332 144, cut off rpm 5400, can be replaced by 1 234 332 215 (no cut off rpm)
cap: 1 235 522 193
vacuum can: 1 237 121 999, only used with this and the 021 905 205 AC distributor, probably very rare

later in time points were superseded by 1 237 013 130 -> 059 998 051 B


Not sure, what the P stands for, but there is no 022 905 205 P


But like mentioned before, this gem could have been heavily modified, so maybe the stock parts do not fit.
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Wildthings
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PostPosted: Wed Jul 18, 2018 7:46 am    Post subject: Re: Distributor ID Reply with quote

guitarman63mm wrote:
wcfvw69 wrote:
duckyde wrote:
would it be a problem running this on a Bus set up with dual carbs (44idf) and I assume I would need to run a hose for the vacuum advance?


That distributor would have had a SVDA vacuum canister on it. They require 200MM hg of vacuum to fully retract the arm.

Many dual carbs DO NOT provide this much vacuum. Many of the dual Weber's don't.


I know you know quite a bit more about distributors than I do, but - If our dual carbs didn't provide at least 13-15" of vacuum, how would our brake boosters work? 8" sounds like a lowish bar to clear to me.


You can get all the vacuum you want for the brakes on decel, while for the advance to be of any good you need sufficient vacuum at part throttle.
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duckyde
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PostPosted: Wed Jul 18, 2018 3:34 pm    Post subject: Re: Distributor ID Reply with quote

Thanks for all your inputs I really appreciate it. It actually does have a vacuum pod but is not pictured but no hose was connected to it. So I'm running dual weber 44idf carbs, what kind of distributor should I be running. I'm guessing something with a mechanical advance? The P/O stuck this thing in as part of the deal but I don't think it's ever worked quite right despite its newish appearance. thanks again!
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Balmoral1958
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PostPosted: Wed Jul 18, 2018 6:04 pm    Post subject: Re: Distributor ID Reply with quote

I’m running dual 40 IDFs have the Pertronix SVDA. Vacuum to one of the Weber’s and brake booster off the manifold - works very well.
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wcfvw69
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PostPosted: Wed Jul 18, 2018 7:10 pm    Post subject: Re: Distributor ID Reply with quote

duckyde wrote:
Thanks for all your inputs I really appreciate it. It actually does have a vacuum pod but is not pictured but no hose was connected to it. So I'm running dual weber 44idf carbs, what kind of distributor should I be running. I'm guessing something with a mechanical advance? The P/O stuck this thing in as part of the deal but I don't think it's ever worked quite right despite its newish appearance. thanks again!


The only way to tell if those Weber's have a vacuum tube on the side of them, is to stick a vacuum gauge T'd between the carb and vacuum can. Measure the vacuum at idle (should be none) and then blip the throttle to see how much vacuum you're getting.

I've had customers measure this before on their Weber's and they couldn't get over 100MM hg of vacuum. You need PORTED vacuum, not MANIFOLD vacuum.

There's many different years and manufactures of the Weber carbs. That throws the what brand Weber carb provides what vacuum.
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**Restored German Bosch distributors for sale or I can restore yours**

**Restored German Pierburg fuel pumps for sale or I can restore yours**

My 1970 bus refresh thread- http://www.thesamba.com/vw/forum/viewtopic.php?t=598191

1970 Westfalia Bus
1969 Convertible Bug
1967 Standard Bug
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