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 helbus
A.k.a.: Pete S
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| posted on January 6th, 2015 at 05:06 PM |
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Wtd. Vacuum advance for 1971 Beetle distributor
The vacuum advance I need is to suit an Australian made Bosch distributor for a 1971 1600 twin port.
The Distributor has stamped on the side "Made in Australia" and the number designation as follows "U-ZV / JU 4R3"
The Vacuum advance unit has no numbers on it at all, and only has the Bosch symbol.
Some people may say "just chuck a 009 in it". The Beetle is still all original, and stock, and I would rather keep it that way, and not have to deal
with a cheap distributor that does not suit the engine.
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 Grey 57
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| posted on January 7th, 2015 at 09:36 AM |
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Pete I'm pretty sure the standard SVDA dizzy that most supplier sell new is the right one for 1600TP.
If your looking for that actual part number we can have a look in the pile we have and try and find one. But vac cans tend to rot out after 20 years
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Barty63
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| posted on January 11th, 2015 at 05:59 PM |
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This one any good for you? It just came off my 73.
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farquire
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| posted on January 12th, 2015 at 09:23 AM |
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no number on the arm going into the dizzy?
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1303Steve
A.k.a.: Steve Carter
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| posted on January 12th, 2015 at 09:32 AM |
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Hi
You can tell if it the correct one they have a plastic hose connection, the German ones had steel ones.
I'm surprised that it doesn't have a dual vac advance on that model
Steve
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AA003
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| posted on January 12th, 2015 at 12:41 PM |
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| Quote: | Originally
posted by 1303Steve
I'm surprised that it doesn't have a dual vac advance on that model
Steve
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It would have had originally, but most were replaced with a single under warranty.
I read it on samba, so it must be correct.
Sometimes Volkswagen dealers sell spare parts. Amazing isn't it!
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1303Steve
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| posted on January 12th, 2015 at 03:06 PM |
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Hi
The VW approved alteration was a main and air jet change jet change and fitting a single vacuum can to the original dizzy. I'm pretty sure that the
dual vacuum can dizzys were German.
The timing was also altered from 5⁰ AFTDC to 7⁰ BTDC. The dual vacuum carbs had vacuum port pointing rearward
Steve
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Barty63
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| posted on January 12th, 2015 at 07:08 PM |
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It has 135 stamped on the arm..
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helbus
A.k.a.: Pete S
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| posted on January 12th, 2015 at 08:08 PM |
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The arm on our vac advance has no stamping numbers at all. Someone gave me one with 122 on the arm, but it does not fit.
I will get a picture of our one.
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Barty63
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| posted on January 12th, 2015 at 09:14 PM |
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If you need anymore pics of mine let me know.
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helbus
A.k.a.: Pete S
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| posted on January 13th, 2015 at 09:27 AM |
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Pictures of distributor and advance unit. It has no numbers on it, not even on the arm inside. I have taken it out to look all over it.
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1303Steve
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| posted on January 13th, 2015 at 11:41 AM |
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is there a part number on the dizzy? You might need a magnet to see it edit sorry mirror
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Barty63
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| posted on January 13th, 2015 at 11:55 AM |
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That looks like an earlier one. Looks similar to one on a 1300sp I have. I'll look at that one.
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1303Steve
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| posted on January 13th, 2015 at 05:17 PM |
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Does the dizzy have centrifugal advance?
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helbus
A.k.a.: Pete S
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| posted on January 13th, 2015 at 08:34 PM |
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The only part number is
The Distributor has stamped on the side "Made in Australia" and the number designation as follows "U-ZV / JU 4R3"
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1303Steve
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| posted on January 14th, 2015 at 07:32 AM |
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But does it have centrifugal advance as in can you twist the rotor button to produce advance
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kaiisons
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| posted on January 14th, 2015 at 09:26 AM |
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looks like vaccum only 1300/1500 SP distributor. According to OldVolksHome (US website so may not be entirely accurate). That distributor has the
following specs.
Distributor: VW 111-905-205L, Bosch ZV/JU 4R3 (0231 147 002)
Can Use: VW 111-905-205M, Bosch 0231 147 002 or 111-905-205N, 0231 137 005
Replacement: VW 315-905-205B, Bosch 0231 137 031
Points: 01 009
Condensor: 02 007
Rotor: 04 006
Cap: 03 001
Coil: 00 001 (Blue Coil: 00 016)
Vacuum Can: 07 016 (NLA)
Ignition Wires: 09 003
Spark Plug: W8AC
Timing Set At:: 10deg BTDC Static or @ 800-950rpm w/strobe w/vacuum hose disconnected and plugged
Advance/Retard Range: Vacuum Advance Only: 5-11deg @ 1.3 In. Hg, 23-28deg @ 3.5 In. Hg
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1303Steve
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| posted on January 14th, 2015 at 09:39 AM |
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I'm thinking the same thing kaiisons, it looks like 1500 Beetle or early Type 3 dizzy.
A proper vacuum and centrifugal advance dizzy would really wake the car up.
That model Beetle should have had a jet change as well as single vacuum can fitted.
From memory it should run a 60Z air and 125-130 main jet , VW did this change because of the shocking fuel consumption these cars were getting
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helbus
A.k.a.: Pete S
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| posted on January 14th, 2015 at 10:00 AM |
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It is a vacuum only unit, the rotor does not have the movement. I have an old 1800 bus distributor here, and that has the weights and springs in it,
so I see what you mean.
So for a 1600 twin port the replacement complete distributor would be as follows
Replacement: VW 315-905-205B, Bosch 0231 137 031
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kaiisons
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| posted on January 14th, 2015 at 03:31 PM |
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What carb does it have because distributors and carbs are matched moreso than the engines.
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helbus
A.k.a.: Pete S
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| posted on January 14th, 2015 at 09:07 PM |
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All over now.
I bought a replacement Vacuum unit 113905205A
Dropped it in, guessed the timing, and it started first pop and runs like a dream. Actually accellerates when you put your foot down now.
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