Wild Generator Oil Pressure

[Gus]

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