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

[accessys at smart.net]

have to agree never could get mine tuned finally hit the pick and pulls 
til I found the correct Dist.  works much better and don't pull hair out 
tuning it.

Bob
78 auto


On Thu, 27 Apr 2017, david raistrick wrote:

> Date: Thu, 27 Apr 2017 16:23:23 -0400
> From: david raistrick <keen at icantclick.org>
> To: Tim Shepherd <forever-endeavor at hotmail.com>
> Cc: Type 2 forum <type2 at type2.com>
> Subject: Re: [T2] Timing a 2 liter Bus engine with a 009 and aftermarket carb
> 
> 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....
> _______________________________________________
> type2 mailing list
> type2 at type2.com
> https://www.type2.com/lists/type2/listinfo
>