WOW!
Thanks Marc, looking at the charts shocked me with the wide range of
different model numbers there were for the dizzys.
Here is some work I did just now.
Pulled out the dizzy from the engine. The engine number is 6410993.
The current dizzy's part number is 0 231 137 005, the VW number being 111
905 205N. This came with the smaller can (a faulty unit if I remember right) as
I mentioned earlier which I had changed over to the bigger. The cap with this
unit is a Bosch made in Taiwan item having the number 111 905 207C.
I fished out the old dizzy I had discarded from the engine. Theres a bit of
side to side play in the shaft and its missing the clips and some bits. Looked
quite worn out. Bosch part number was 0 321 137 009 and VW part number 113 905
205K. It had come with the cap 1235 522 056 which was found to be incompatible
as it was too high for the dizzy. We had been having probs with not enough
spark reaching the plugs with this wrong cap.
I found three incomplete dizzys and some loose vac cans in my parts bin too.
I had bought these to yield spares to make a good unit, washers, clips, screws
etc. The unit numbers are as follows:
1. Bosch number 0 231 147 002, VW no 111 905 205M
2. Bosch number 0 231 137 029, VW no 111 905 205T
3. Bosch number 0 231 137 009, VW no 113 905 205K. This has a big can attached.
Finally I have a complete dizzy which I had bought for someone who never
picked it up (this happens a lot of times much to my exasperation). Bosch part
number 0 231 137 039, VW part no 111 905 205AA. This has a big vac can and a
‘high’ cap.
Now we have a perfectly nifty picture to rummage our brains on. What may be the
best setup given the parts at hand??
Can look for more dizzys when I visit the junkyard this Saturday. The shop guy
had his shop cleaned and organized so I m hoping Id have a choice amongst at
least a handful of units. Have noted down the choice of three from the old
volks chart for guidance. Would stay away from the older ZV series given at
the bottom. They are rare as hens teeth anyways.
TIA
Asad.
PS: I just followed the link for the 61 to 64 bug on the chart and it gives in
the ‘can use’ section the number of the dizzy I am using (111 905 205N).
Problem solved maybe??
> Date: Wed, 5 Mar 2008 08:52:29 -0800> From: [EMAIL PROTECTED]> To:
> [email protected]> Subject: Re: [vintagvw] Dizzy for 40 horser> >
> Hmmm. All of the "137" distributors took the 03 001> cap; I was expecting
> yours to be a "139" with the 03> 037 cap.>
> http://www.oldvolkshome.com/ovhignbo.htm> Relative prices of the different
> tune-up parts are> here (note that the 02 170 condenser is obsolete/NLA):> >
> http://home.comcast.net/~marcsoutlet/site/?/page/Bosch_ignition_parts/>
> Anyway, the surface area of the vacuum diaphragm and> the tension of the
> return spring determine the advance> "curve". A larger diaphragm is going to
> exert MORE> pull than a small one at a given vacuum level, so it's> not
> generally a good idea to play "mix and match" with> these things. The length
> of the link arm is often> different, too - in that case the breaker plate
> may> reach the limit of its travel before the canister> does.> > --- asad
> ishaque <[EMAIL PROTECTED]> wrote:> > > > > Thanks Marc for the advice,> > >
> > I looked at the engine and the dizzy but all I> > could read was 0 231 137
> in the first row and a vw> > logo with 111 905 in the next. I know you would
> need> > the last letters to know what the thing is. I should> > pull the
> dizzy out soon to have a good look. Will> > report back then.> > > > I do
> remember that this dizzy came with a smaller> > vacuum cannister when I had
> picked it from the> > junkyard. The unit which came with the engine/car> >
> was also a similar smaller one with a bigger vac> > can. I do remember the
> part numbers were different. > > I had reused the bigger can and binned the
> old dizzy> > as it was too worn out.> > > > Why were the vac cans of
> different sizes?? Do> > they work on different levels of vacuum?? Logic> >
> would say the smaller can would 'kick in' with its> > advance earlier than a
> bigger one.> > > > Will report back with an update soon.> > > > TIA> > Asad>
> > > Date: Fri, 29 Feb 2008 19:03:12 -0800> From:> > [EMAIL PROTECTED]> To:
> [email protected]>> > Subject: Re: [vintagvw] Dizzy for 40 horser> >
> The> > 01 006 2-piece points sets are still available,> but> > they cost
> over twice as much as the more-common 01>> > 011 used on more "modern"
> distributors. Those> > big-cap> units were infamous for developing excess> >
> advance at> low speeds - it's been over 20 years> > since I've seen> one
> that didn't suffer from this> > problem. What's the> 10-digit Bosch number
> of the> > one you're running now?> Odds are that it doesn't> > get a strong
> enough vacuum> signal from this engine> > to work right, but if you can> set
> it at 7.5-10°> > initial and get 30° or more total> out of it by> > ~3000RPM
> it's "good enough". If not, IMO> you'd be> > better off with a 0 231 178
> 009> centrifugal-advance> > unit than with the antique....and> tune-up parts
> for> > those are easy to find.> > > --- asad ishaque> > <[EMAIL PROTECTED]>
> wrote:> > > > > Volks,>> > > > > > > I run a 40 horsy 61-2 vintage 1200 in
> my> > daily> > driver 68 bug. The engine has a more> > 'modern' VW> > dizzy
> currently, I guess a late> > sixties unit with> > the smaller cap. I got my
> hands> > on what may be the> > correct unit for the motor.Has> > the number
> ZU/PAU 4R5> > on the nifty plate at the> > side. Its one of those big> > cap
> dizzys.> > > >> > Will I get any benefits if I run this particular> >> >
> dizzy?? I think the performance of all the> > different> > dizzys differs??>
> > > > I would need to> > get a new cap, point n condenser> > to complete
> the> > setup. The local VW shop has the> > last few NOS> > caps on its shelf
> but advised me not to> > go for> > the setup as the points are hard to find
> for> > this> > unit.> > > > Any thoughts welcome.> > > > Asad> > >> > >> > >
> > >
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