Lee Einer wrote:
Thanks, Jim-
I backed the adjusting screw on the altitude adjusting box a full turn
and took it for a test drive. It seems to have picked up a little bit of
accelleration even down here at sea level. It will be a few weeks before
I can check it out in LV. If needed, I can back it out another turn at
that time.
One question, though- when backing off the adjusting screw, how will I
know how much is too much? Should I be watching for smoking under
accelleration?
Lee
Without a proper injection pump test stand, all you can do is use the
smoke from the exhaust as a measure of proper adjustment. Fortunately,
that's ALMOST as accurate as a test stand. When the pump is properly
set, when the car is accelerating, pedal to the floor there should be
barely visible smoke visible in the rear view mirror on a sunny day when
the engine speed gets over 4000 rpm! If you don't have a tach, then you
can estimate 4000 rpm by using 80% of the way to the "I", "II" and "III"
marks on the speedometer as a rough guide to the engine reaching 4000
rpm with the car in 1st, 2nd and 3rd gears.
Do NOT use smoke visible at night in the headlights of a trailing car as
a measure - way too much variability caused by a variety of causes
unrelated to unburnbed fuel! The must be wisps of smoke (or the car
won't make it rated power/acceleration) but more than wisps of smoke
then the power drops! Measure the 0-62 mph acceleration time and if it's
within a 4-5 percent of the factory spec (~20 sec) then I'd leave it alone!
Marshall
--
Marshall Booth (who doesn't respond to unsigned questions)
"der Dieseling Doktor" [EMAIL PROTECTED]
'87 300TD 181Kmi,'87 190D 2.5 199Kmi, '84 190D 2.2 227Kmi, '85 190D 2.0
159Kmi, '87 190D 2.5 turbo 234kmi
Diesel Technical Advisor MBCA, member GWSection
http://www.dhc.net/~pmhack/mercedes/mbooth1.htm
