8.3 Cummins - turning up the injection pump

[Gregory OConnor]

Steve, the diesel smell is not a sign of better larger burn but a
sign of inefficient injector spray. sounds to me like the lesser
power one has a 'weak pump' or a 'small volumn set of injectors' or
a 'Turbo issue'. When I have a prob in my 5.9 I drop 2 quarts ATF in
30 gal. of fuel and put 50/50 mix of ATF /Fuel in a new fuel filter.
Maybe the diesel smell and smoke is normal?
Greg
California
94pt40 --- In WanderlodgeForum@yahoogroups.com, "Gregory OConnor"
wrote:
>
> Steve, Randy has a 8.3 in a Ford 650 go to Wanderlodge or
Wanderlodge
> all. He is a great guy and very Knowledgable.
> Greg California
> 94pt40
>
> --- In WanderlodgeForum@yahoogroups.com, "transit360"
> wrote:
> >
> > Hi guys,
> >
> > Does anyone here have any experience with the 8.3 Cummins?
To
> > me, it looks identical to the 5.9 except bigger of course. I'm
> > wanting to turn up my injection pump to get a little extra juice
> and
> > was wondering is someone could pinpoint where and how to turn it
> up.
> > I have two matching pusher buses right now and one of them
> > runs like a scalded dog and the other one's a slug in comparison.
> > Both get the same fuel mileage for the most part (around 7-8mpg).
> > Both have new fuel and air filters and clean diesel, so I'm down
to
> > try and juice up the pump.
> > The one that has more power also smokes a little more, with
a
> > more detectable smell of diesel than the other from the extra
fuel,
> > so I'm thinking that someone has already turned up the pump on
the
> > faster bus. All specs as far as temp, oil press, rear axle, etc
are
> > the same, which is why I want to try the injection pump next. Any
> > suggestions? I'm sure it's simple but I always like to ask
anyone's
> > experience.
> >
> > Thanks,
> > Steve
> > http://www.360partybus.com
> > 2 QBRE Bluebird 8.3 partybuses
> >
>