[T2] Timing a 2 liter Bus engine with a 009 and aftermarket carb

[Dave Gillingham]

No sure what I have to do to get off the spoofing list?  Been a list member for a silly long time...

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> On Apr 27, 2017, at 1:58 PM, Dave Gillingham <dave at coronado-realty.com> wrote:
> 
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> 
> Not to pile on, but I completely agree you should trash the .009.  I also have 73 (panel van) with a 76 2.0 engine.  Stock dizzy works fine.  I have a Petronix kit as well
> 
> Sent from my iPhone
> 
>> On Apr 27, 2017, at 1:23 PM, david raistrick <keen at icantclick.org> wrote:
>> 
>> On Thu, Apr 27, 2017 at 3:55 PM, Tim Shepherd
>> <forever-endeavor at hotmail.com> wrote:
>>> Greetings all, trying to time a 1973 Bus with a later 2000cc engine, 009 distributor and aftermarket carb. Do I time it to when the white mark is at 9 degree mark at the top of the gauge After Top Dead Center as per the manual, or to 7.5 degrees as per Muir, or...?
>> 
>> The 009 should only be tuned (other than for startup) dynamically, not
>> statically.  The many many variations of them have a fairly varied set
>> of timing curves.
>> 
>> Time for max advance (on a type4 I seem to recall that's somewhere
>> around 45 degrees?  the old "28-32 degrees" is for uprights, even
>> though lots of folks apply it to t4s.  but stock t4 distr's advance a
>> lot further...)
>> 
>> 
>> that said - a 009 does NOT have enough advance curve range to allow
>> you to have a sane idle setting and still get full advance and power,
>> so you'll never get your carb tuned to match.  so high idle, flat spot
>> stumbles, and/or reduced power (and overrich to compensate for a lot
>> of other things) tend to be your options.
>> 
>> you need a t4-era distributor for a t4 motor, IME and IMO.  look at
>> the factory advance curves and you'll see what I mean....
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