Hi there - and hello to one and all on this nice sunny day! I have a 123 Dizzy and the timing is scattering at idle but solid throughout advance. The question I have though relates to the 123 Dizzy itself and both 123 website and the dealer I bought from are of little help... Inside the Dizzy there is the aluminium billet and this seems to have some movement up and down which I would have thought isn't right? I just wanted to confirm whether this is normal? At idle the van seems to be running on 3 cylinders but when its advanced it seems to run nice and strong on all 4. I believe its still on Curve 0 and the usual stuff had been checked. valve clearances, spark plugs, leads, fuel/carb mix, idle size etc If you have a 123 dizzy could you let me know if you have play in the aluminium billet? Thanks
Right, popped my dissy cap off. I've got no vertical play on the aluminium disc (well mebbe just a teeny small fraction of a mm) with the dissy rotor on. Possible that yours is loose and is mistriggering? Or maybe something's come adrift at the bottom of the shaft? I'd take the dissy out & have a look see. They seem easy enough to dismantle. I'll admit 123's aftersales is abysmal, considering the price. There's a Swedish(?) dealer on the forum - aryan - who seems to know what he's talking about, might be worth a ping. Failing that, I recall they used to offer a flat-rate repair for 35 euros. But...as above, hoik it out and see if anything's dropped off. They're obviously assembled by hand, so should be fixable if it's mechanical.
Snotty ,have you ,or anyone for that matter come across a 002 Bosche dizzy? just that I got given one by p.o. ,I expect it came off bus at some point ? wondering if worth keeping as currently running electronic timing in 009,again by p.o. ta for advice anyone.<<<Cancel this request ,Bosche website says it was for 60"s bus/bug
Thanks so very much for taking the time and effort to look at yours. It does sound like there's more play in my one and therefore could be causing the issue. Bearing in mind it's barely 3 years old and less than 20k miles would have expected it to last longer. If as you say it's possible to check inside maybe something quite apparent. Once again thank you, it's very much appreciated.
I also have a similar problem, however I put mine down to the whole engine needing a bit of a birthday! Jumps around at idle, but soon as you great some revs on it, it locks down and the to,mong is solid through the curve....
What curve do you guys recommend for a 2l type 4.... The 123 site was a little patchy when it came to saying which one to use!
No idea! May be worth looking up what dissy was originally fitted on type2.com, and matching it to the 123 tables. Curve 0 seems to work pretty well for everything.
I have the original... A 205 something I think, so will have a look, I think I used a different curve, can't remember which one off the top of my head....
looking at the 123 forum I got this info, my dizzy was a 021.905.205 P (VW) or 0231 168 005 (Bosch). from what others have said, curve 0 runs a little hot, and I seem to remember reading what was below and going for curve 9 in the end 2l VW engines are not (yet) fully covered by the 123-VW-4-R-V however I just checked the original specs of the 0231 168 005 & 0231 168 006 (Bosch) distributor and these are: 9-14° @1600 rpm 20-26° @3400 rpm With the 123-VW-R-V curve #9 does 9.5° @1600 rpm 19.9° @3400 rpm (and max 22,5° @3900 rpm) so that should be inside the specs, just 0,1° short at 3400 rpm can hardly make any difference and there is room for some more static advance without risking too much advance elsewhere. curve #6 does 9.6° @1600 rpm 20.9° @3400 rpm (and max 23,5° @3800 rpm) so that should be even a little bit closer, although still on the conservative side, one could probable increase the static advance some degrees and still be inside the specs too. curve #B does 10.7° @1600 rpm 25° @3400 rpm (but already 25° @3200 rpm) with relatively much advance around 3200 rpm still inside the specs too. curve 0/2 9.7° @1600 rpm 21° @3400 rpm (and max 23,5° @3800 rpm) still inside the specs too, but on the low side, a few degrees more (static) advance might make it run more efficient curve 1/3 13.2° @1600 rpm 22.8° @3400 rpm (and max 25° @3800 rpm) also inside the specs probably a better alternative than 0/1.
@NatchoNatchoMan An old thread resurrected but if you read this can you tell me where you found that^ info?
I am pretty sure I got it off the 123 forums, I know I was doing a lot of googling to figure out what do do with the settings. Fyi, it's still running with the 123 and twin dells, not cooked it self off and could happily sit around 80mph if the speed limit allowed all day long Sent from my Pixel XL using Tapatalk
Where's the spec sheet? I’ve found this https://www.123ignitionshop.com/gb/volkswagen/21-123VWRV.html and have read the instructions where there are a couple of charts with Bosch distributor numbers and VW engine numbers. The latter has static timing, advance at idle and maximum advance but I can’t find details of the advance curves anywhere. Incidentally, the 1800 and 2.0l type IV isn’t mentioned anywhere – not where I was looking anyway.
It's not mentioned, hence my delving into the 123 forums and found the nugget above, someone went and tested the original distributor and the 123 curves. Sent from my Pixel XL using Tapatalk
But unfortunately what info there is on the 123 chart doesn’t correlate with the forum info. Curve #9 123 = 30° @ 3900, forum = 22,5° @ 3900 Curve #6 123 = 31° @ 3900, forum = 23,5° @ 3800 Curve #B 123 = 32,5° @ 3200, forum = 25° @ 3200 Curve #0/2 123 = 31° @ 3900, forum = 23,5° @ 3800 Curve #1/3 Is not on the chart but is listed as being optimised for LPG/E85 In my opinion none of forum tested degrees of maximum advance are anywhere near enough, but do we need to add static advance to the forum numbers? If we add static of 7.5° they look a lot better. EDIT: On the 123 chart almost all of the data starts with 7.5° of static advance, 10° @idle, then maximum advance. And I assume there is an unspecified amount of vacuum advance in addition. I’d be looking for 30° or 31° of maximum advance so I agree with you for a 2.0 type IV curve 9 or maybe 6 is probably the best – if the 123 numbers are correct and 7.5° is added to the forum numbers.
