Another generator problem? Two questions?

[Ed Gardels]

--- In WanderlodgeForum@yahoogroups.com, "thomas_sorrentino"
wrote:
>

Tom... I have a 8.0 kabota(89sp)and had gen set problems since I
bought it two years ago. I finnaly took it to a onan dealer here and
had it fixed($300). Problem was the cannon plun on the control box.
The pin that supplied 12 vto glow plugs waqs burnt. They bypassed the
plug with new wires. This plug can cause a lot of gen set problems.

Ed Gardels 89sp
Arlington Texas
> Ralph,
> I will check that tommorrow and let you know. Just to make sure I
> understand you correctly, you want me to put the volt meter on the
> small terminal of the start motor solenoid and see if 12vdc is
there
> when I push the start switch?
>
> Tom Sorrentino
> 1987 PT38
> Bedford Hills, NY
>
> --- In WanderlodgeForum@yahoogroups.com, "Ralph L. Fullenwider"
> wrote:
> >
> > Tom:
> >
> > I have seen the temps go from 190 to about 210 F, perhaps a
> radiator
> > cleaning but that is not your problem.
> >
> > When you push the start switch C relay closes completing a
circuit
> from
> > 12vdc to ground through normally closed contacts of the CR relay.
> When the
> > C relay pulls in, it closes a set of C relay contacts to the
> starter
> > solenoid. When the starter solenoid pulls, it closes a set of
> contacts to
> > the fuel solenoid and supplies a flash voltage to the field. also
a
> set of
> > contacts close and supplies voltage to the starter motor. As the
> starter
> > motor turns over and the gen set starts the starter solenoid
opens
> and
> > another set of contacts in the start solenoid continues to supply
> voltage
> > to keep the fuel solenoid energized.
> >
> > It sounds like your starter solenoid is faulty. The is the one on
> top of
> > the starter motor proper. Check it with a meter, you should have
12
> vdc on
> > the small post, if only 7 vdc on that wire then the coil of the
> start
> > solenoid is bad. Remove the small wire to the small post and
check
> the
> > voltage again to prove it out. If disconnected and you have 12
vdc
> when the
> > switch is pushed, will prove the start solenoid being bad.
> >
> > Safe travels,
> >
> > Ralph and Charolette Fullenwider
> > 84FC35
> > Duncan, Oklahoma
> >
> > At 05:26 PM 5/27/2007 +0000, you wrote:
> > >We had an un seasonable hot weekend here and I was running the
gen.
> > >with all three A/C's on. I have the yanmar with the 12.5kw
kohler.
> > >Water temp. was runing slightly below 220 degrees (which I
haven't
> > >seen that high before). Since this is my first summer with the
> coach,
> > >my first question is to the guys with yanmars. What kind of water
> > >temp. do you see on yours when running the gen. fully loaded on
a
> 92
> > >degree day?
> > >
> > >While we were in the store for a 1/2 hr or so, came out and the
> gen.
> > >was off. None of the start switches will do anything, no
clicking,
> > >nothing. The fuse is good. With the water temp. cooled down, I
> > >disconnected the hot water shutdown, still no cranking. If I hot
> wire
> > >the fuel solenoid with a jumper and jump it at the starter the
gen.
> > >starts fine, runs and produces voltage. I just started looking
at
> the
> > >schematics for the control box and I'm thinking it might be one
of
> > >the relays in there. They're labeled CR, C, 1CR and 2CR. Am I on
> the
> > >right path here? And would anybody know which one would give me
> these
> > >symptoms? I'm pushing the limits of my abilities here!
> > >Thanks
> > >
> > >Tom Sorrentino
> > >1987 PT38
> > >Bedford Hills, NY
> > >
> > >
> >
>