[Vwdiesel] Hillbilly Tuning

[gary]

Good Question!
I have no clue how the automatic device works. But the key is to make it
go full advance.

If it's too much hassle, just set your timing to ~1.05mm and be done
with it.

I may be revising my process soon. I may knock back my timing to 1.00mm
because The engine sounds a touch too "marble-ly" at light loads.

-Gary




On Tue, 2005-12-06 at 08:01 -0800, Tim Hicks wrote:
> When you use the " Hillbilly" tuning/timing method as described below, do you disconnect the automatic cold start valve? The directions given are for a manual cold start valve. Thanks Tim
>    
>   
> Ahhh, hillbilly tuning...
> 
>  
> 
> Here goes...
> 
> -Hot engine
> 
> -Cold start knob all the way out
> 
> -inj pump - 3 of 4 mounting bolts loose, leave the one at the 2:00
> 
> position snug.
> 
> -start engine(idle)
> 
> -loosen just enough to be able to rotate the pump.
> 
> -roll pump (top towards engine) this advances timing. You will hear the
> 
> engine speed up. At some point the engine will start to slow down or
> 
> stumble. Stop, go back to that max point.
> 
> -Snug a mounting bolt.
> 
> -Stop engine.
> 
> -Make a reference mark on the mounting flange and the pump face.
> 
> -Mark a mark 2mm in the retarded direction(as in rolling the pump
> 
> forward).
> 
> -Move the pump to that new mark.
> 
> -Tighten everything up.
> 
> -in turn, loosen and re-tighten all of the injector pipes on the pump
> 
> side.
> 
> -Push in the cold start knob.
> 
>  
> 
> Done!
> 
>  
> 
> If you go back and measure injection timing, you will find the timing to
> 
> be in the 1.05mm range. Some get 1.07, others 1.03, YMMV.
> 
>  
> 
> You can forgo all of the above and just statically set the timing to
> 
> 1.05mm and be done with it.
> 
>  
> 
> I have done this to my 1980 PU and boy what a difference! Why didn't I
> 
> know about this years ago with my two other Rabbits?
> 
>  
> 
> For fueling, I set mine so that I get just a wisp of gray haze smoke at
> 
> full boogey in 3rd gear.
> 
>  
> 
> 
> 
> -Gary
> 
>    
>    
> _______________________________________________
> Vwdiesel mailing list
> Vwdiesel at vwfans.com
> http://www.audifans.com/mailman/listinfo/vwdiesel