[Vwdiesel] Diesel Fuel part 14 ---- ( Mixture talk )
H . Hagar.
h_hagar at prcn.org
Sun Mar 20 18:20:50 EST 2005
See Fuel 101 as well.
Can the word mixture be used talking about diesels ? ABSOLUTELY.
I am writing about old Rabbits only. Some gassers need extra fuel RICH or they
self destroy in short order. ---NOT so with a diesel in can be run as lean as you can make
it ---and like it. BUT too much fuel ? may destroy it.
In this forum we have two extremes Jake and Hagar. Jake super rich and
Hagar super lean. ---- Hagar 78 Miles to a gallon imp ---ask Jake what he gets.
100----------------50-----lean----------0--------------50-----rich--------------100.
So when you buy a new Rabbit what is it set for mixwise.?. It will jo jo from full fuel to
little fuel according to how you dance on the pedal. --------rich lean rich lean and so on.
The intake is designed for delivering AIR for full power ---and with no restrictor like a butterfly
the mix at no load will be LEAN side of 0. control collar bares the two drainholes
on high pressure piston. When you step on it --the governor and a mess of springs and levers
will move the control collar right to the mechanical stop --we call fueling screw. Or
if you like maximum fuel stop. If you turn the screw all the way in ? ---the drainholes will
be mostly covered. Turn it max out --about 4 turns then the holes will not be covered as much
the stop is solid. LEAN and mean like BUNNY BONDO.
Jake got his wide open ---running way on the rich side of 0 .
As you can see there are many shades of LEAN and many shades of RICH.
Mixture is defined in USA as so many pounds of fuel and so many pounds of air.
The flyboys got a mess of experience in this field. It was one of my dreams to
Install Mixture control and meters ---simple to do if you have an LDA ---
Do some VW come with automatic mixture control ? yes indeed --
it is called an ADA.---looks like the LDA.
So if you like to turn the fueling screw OUT ? no probleme. Worried about loosing
the setting ? NO problemo . Turn screw all the way in. then out 3 o4 4 turns.--
Then a bit of Tuning .Remember you must jockey idle and fueling. Back and forth.
Hagar.
PS : Yes Bunny Bondo is a leftie. By the way the control collar go to
full power the minute you tell the governor (pedal) you need more poop.
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