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> Distributor rebuild
Montreal914
post Jul 1 2013, 09:49 PM
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I've been looking at rebuilding my 73 2.0 distributor (231 174 009) because of some play in the shaft/bushing.

Opening it up I noticed that the 2 mechanical advance springs and different (IMG:style_emoticons/default/blink.gif)

Is this normal? Can we get new springs? Is the weight and mechanism different between distributors and springs the same? ( I have a spare 1.7 distributor)

I'm not there yet, but what is the recommended way to remove the bushing and are they available or we need to machine them?

The help is greatly appreciated (IMG:style_emoticons/default/smile.gif)

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McMark
post Jul 1 2013, 09:52 PM
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Two different springs develops to advance curve with two slopes. Advance can come on at one rate at low rpm and at a different rate at higher rpm.

Bronze bushings are usually honed after installation.


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Montreal914
post Jul 1 2013, 10:49 PM
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Thank you for the Info McMark, makes complete sense. (IMG:style_emoticons/default/beerchug.gif)

Available spare parts (bushing)? Didn't see anything on PP, GPR maybe?
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McMark
post Jul 1 2013, 11:37 PM
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Unlikely. McMaster-Carr?
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Montreal914
post Jul 2 2013, 12:12 AM
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QUOTE(McMark @ Jul 1 2013, 10:37 PM) *

Unlikely. McMaster-Carr?


OK, got it, will find something and customize it for the job. Thanks (IMG:style_emoticons/default/beerchug.gif)

Other option is to transfer the guts into my spare 1.7 but could get confusing with numbers...especially after a few years...
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Java2570
post Jul 2 2013, 06:54 AM
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As an aside, I've had 4 dizzy's apart lately looking for a good one to use on my 2.0L
and have noticed 3 of the 4 had the same size springs on the weights. Only the
205 dizzy had different springs. The other units were 205A dizzy's.....
I doubt any of these had been replaced; am just curious why the difference?
I know 1973 MY had some specifics but was that one of them? I've not had a 1.7 or older unit to compare. Anyone know?
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DRPHIL914
post Jul 2 2013, 09:39 AM
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along these lines, is there a member here that rebuilds these?

I have a "spare" for my 75 2.0, came in a box of other parts i bought a few years ago. tried it once, car ran really crappy, so my assumption is that there must be wear internally? just thought it would be nice to have an extra-
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Montreal914
post Jul 2 2013, 10:26 PM
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QUOTE(Java2570 @ Jul 2 2013, 05:54 AM) *

As an aside, I've had 4 dizzy's apart lately looking for a good one to use on my 2.0L
and have noticed 3 of the 4 had the same size springs on the weights. Only the
205 dizzy had different springs. The other units were 205A dizzy's.....
I doubt any of these had been replaced; am just curious why the difference?
I know 1973 MY had some specifics but was that one of them? I've not had a 1.7 or older unit to compare. Anyone know?



...So my distributor is also the 205 which correlates with McMark's comment on the dual slope and your findings. I will look into my spare 1.7 tomorrow and let you know about the springs.
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Montreal914
post Jul 2 2013, 10:59 PM
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So I have checked the vacuum advance/retard unit of my 2.0 distributor with a vacuum pump and I guess the advance portion works but not the retard as it doesn't hold vacuum on that port (IMG:style_emoticons/default/sad.gif)

I was thinking of using the vacuum advance/retard from my spare 1.7 unit. Looking at the compiled data chart from Dave Darling (what would we do without Internet, the World, and mostly the dedicated people... (IMG:style_emoticons/default/pray.gif) ) below, the retard portion of the 1.7s and the 205 2.0 is fairly close, but I don't know if this could cause issues.

On the advance curse side there is a much bigger difference but I was thinking of disconnecting it (like in the '74 I believe). I have read in an other post that the vacuum advance could have been installed by the factory to help with emission control but on the other hand it can also make the heads run hotter.

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Nozzle
post Jul 3 2013, 07:31 AM
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My stock '73 2.0 dizzy had exactly the same non-symetric advance springs. I picked up a spare '74 2.0 dizzy for comparison and it has what looks to be two identical springs. What's interesting is the vacuum retard (inboard port?) for both units does not hold a vacuum but seems to alter the running condition of the engine all the same.
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Java2570
post Jul 3 2013, 08:16 AM
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I think every dizzy I've purchased used has a leaky vacuum canister. I would imagine you would see some
difference from the advance plates and weights in a specific distributor. I had to buy a known good
vacuum canister for my '74 ---which I'm sure affects the curve of the dizzy somewhat. The used vacuum
can I got from someone on Samba doesn't have the adjustment screw on the can either. It holds a vacuum but I don't know how it compares to the stock unit or how it changes the running of the engine.


QUOTE(Nozzle @ Jul 3 2013, 09:31 AM) *

My stock '73 2.0 dizzy had exactly the same non-symetric advance springs. I picked up a spare '74 2.0 dizzy for comparison and it has what looks to be two identical springs. What's interesting is the vacuum retard (inboard port?) for both units does not hold a vacuum but seems to alter the running condition of the engine all the same.
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worn
post Jun 14 2017, 06:27 PM
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Resurrecting thread because it seems my distributor has a lot of axial play, prolly due to a missing fiber washer.

Is there any supplier of rebuild parts?

Else, if I start machining bushings, is sintered bronze OK? Any help at all would be welcome. Turns out the distributor dogs can jump out of the gear drive. More than an eight of an inch of play.
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rgalla9146
post Jun 14 2017, 08:04 PM
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QUOTE(worn @ Jun 14 2017, 08:27 PM) *

Resurrecting thread because it seems my distributor has a lot of axial play, prolly due to a missing fiber washer.

Is there any supplier of rebuild parts?

Else, if I start machining bushings, is sintered bronze OK? Any help at all would be welcome. Turns out the distributor dogs can jump out of the gear drive. More than an eight of an inch of play.


Contact Glenn Ring, Long Island NY
He did a 356 dizzy and a early S dizzy for me.
www.glenn-ring.comm
914 2.0 dizzy ? don't know. Might pay to ask.
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IronHillRestorations
post Jun 15 2017, 08:40 AM
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Is this a stock FI engine? I'm trying a Pertronix single vacuum dual advance (SVDA) distributor for a dual carb engine.
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worn
post Jun 15 2017, 09:08 AM
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QUOTE(Perry Kiehl @ Jun 15 2017, 06:40 AM) *

Is this a stock FI engine? I'm trying a Pertronix single vacuum dual advance (SVDA) distributor for a dual carb engine.


Stock, so I need the FI points. '76 2056.

Fiber washer between the dog and the body disappeared so the dogs can pull out of the drive. I thought it was the crane unit, but now I think I was stranded by the distributor mechanicals.
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SA-914
post Jul 3 2017, 09:54 AM
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Perry
How's the dizzy working with the dual carbs?
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930cabman
post Apr 26 2023, 04:22 PM
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Ten years old thread, unable to locate Glen. Is anyone out there rebuilding stock distributors?

I like my points and carbs (IMG:style_emoticons/default/piratenanner.gif) (IMG:style_emoticons/default/piratenanner.gif)
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Aerostatwv
post Apr 26 2023, 04:41 PM
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Try https://vwnos.com/distributor Marcel may be able to fix you up!

Chris
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emerygt350
post Apr 26 2023, 04:52 PM
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I love my NOS points and 73 dizzy too. In a box, in the basement. (IMG:style_emoticons/default/wink.gif)
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930cabman
post Apr 26 2023, 04:57 PM
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QUOTE(Aerostatwv @ Apr 26 2023, 04:41 PM) *

Try https://vwnos.com/distributor Marcel may be able to fix you up!

Chris


Thank you, lets see what his charges to rebuild are? I am a CSOB by nature and could probably do it myself. I do have a couple scrappers that could be used as testers
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