Wild Generator Oil Pressure

[Gregory OConnor]

some times a high oilpressure at low idle followed by a drop off to
less than idle reading but more than normanl as you increase rpm
proves the relief is being used in the filter. you would think
Chatter in the gauge is also an indication but i dont think the
pressure can fluctuate fast?? when a filter gets dirty quick, it
could be a bearing got ate up and clogged the filter media.

Your situation sounds like a battery ground especially if the
genset is started by a dedicated battery. for it to be an alt issue
that kills the battery while the engine is running, the fuel shut
off would close and stop the genset. Since the genset ran on a
battery either dead or not connected properly, the alt must have
been supplying the juice to keep the fso open?????? it would be
helpfull to know if the battery was actually dead, if not it could
be just a bat terminal issue

I guess the relay power to throw the fso is via the genset
battery???? cant understand why you could not remove power to the
fso??? you would think that relay is normaly closed?????

GregoryO'Connor
94ptRomolandCa

--- In WanderlodgeForum@yahoogroups.com, "Leroy A. Eckert"
wrote:
>
> --- In WanderlodgeForum@yahoogroups.com, "freewill2008"
> wrote:
>
> You can easily check the gauge function for integrity by going
here.
> http://downloadingfiles.co.uk/teleflexfi...0Pressure%
20Systems.pdf
> Leroy Eckert
> 1990 WB-40 Smoke N Mirrors
> Dahlonega, GA
> Royale Conversion
> >
> > Hi Gus -
> >
> > The oil pressure guage is surely electric. The genset engine
> > controls would also be electric and possibly electronic.
> >
> > Now, you also mention the battery is low or dead. Your
electric
> > guages and engine controls will certainly be erratic if the
voltage
> > is wrong.
> >
> > Try charging (and doing whatever is needed to KEEP a charge) and
then
> > see how everything works.
> >
> > Best of luck.
> >
> > Bob Griesel '84 FC31 WLII WA
> >
> > --- In WanderlodgeForum@yahoogroups.com, "Gus" wrote:
> > >
> > > Hello everyone,
> > >
> > >
> > >
> > > On my last trip, I noticed the generator oil pressure
bouncing
> > wildly
> > > between 80 & 120. I did not notice it creep up. It had been
just
> > under 30
> > > psi for most of the trip (15hours). Water temperature was at
160
> > F. I was
> > > alarmed so I hit the switch to turn it off. It did not shut
down.
> > I pulled
> > > over, opened the generator bay and access to the controls. I
hit
> > the off
> > > switch at the box and nothing. The engine did not feel too
hot to
> > the
> > > touch. The radiator and the coolant reservoir did not feel
too hot
> > either.
> > > I was still alarmed so I pulled the fuse to shut it down. I
> > reinserted the
> > > fuse and tried to start it, but was unsuccessful. I then
checked
> > the
> > > battery and it was dead.
> > >
> > >
> > >
> > > Other information:
> > >
> > >
> > >
> > > 1) I had just replaced the battery and was aware that the
> > battery was
> > > not being charged by the battery charger or the generator.
> > >
> > > 2) As I was trying to shut the generator off, I noticed
that
> > the switch
> > > was lit dim. Is that because the batt. Was dead (8 volts)?
> > >
> > > 3) As I was checking the battery, I felt a very small
> > electric charge
> > > on my left knee which was touching the bus frame. Should I be
> > concerned? I
> > > will investigate that charge further tomorrow morning. It may
be
> > unrelated.
> > >
> > > 4) I am now charging the battery so I can try to start
the
> > generator in
> > > the morning. I think it will start but I will not let it run
for
> > long until
> > > I figure out the Pressure problem. Is battery voltage
required to
> > shut it
> > > off?
> > >
> > > 5) Right now all the gauges read zero except for the oil
> > pressure.
> > > The needle is stuck at 60 psi.
> > >
> > > 6) By the way, I have a 13 kw generator with a Yanmar
engine.
> > >
> > >
> > >
> > > Any help is greatly appreciated.
> > >
> > >
> > >
> > >
> > >
> > > Gus Rodriguez
> > >
> > > 89 pt40 8v92
> > >
> >
>