Generator hard start

[Gregory OConnor]

Sounds like they didnt fix it and only bypassed the shutoff if-then safety
prompt that shut it down. the explanation that the glow plugs were not working
seems off. in the summer when the air and all is warm or above 60 there is
little need for glow plugs unless you have a compression problem or slow starer
spin problem.

I like to contract and consult the mechanics at privately owned rental yards.
they are usualy very well versed in multiple and unique applications. the
genset is one of those apps. there is many variables; shutdown systems,
autostarts, disconnected auto starts, factory options imcomplete, independent
alts, fuel delivery paths,etc. these things are not evident even to the applianc
trained factory tech.

one thing that can cause heat is stress. if it is hard to start and seems slow,
the alt (generator) may be shot as far as bearings and causing a drag. to
test???: if you load up a genset with a bunch of electrical demand, the load
will be great and engine should show the strain. if you then shut the main
pannel off, the engine should purr at idle and realize the absence of demand. if
you still detect it running against a strain, it may be the bearings in the
genhead.

one other way to test the genhead bearings is with heat. it should not be hotter
than the engine nor should it heat up fast. that is why it is good to have a
relative comparison chart of heat when things are running good. if a member can
shoot a couple of temps of a like genset at a described environment, you can
duplicate the environment and take a read.

may be there is air in your radiator??
run then open all the hoses one at a time and let it leak a bit
check that the waterpump has flow
restriction in the intake??
ru it with the aircleaner off and see if pro continues
restriction in the exhaust??
remove and run it without exhaust. check for crank case pressure and blow by
which increase with backpressure

Greg ofTim&Greg
94ptca


--- In WanderlodgeForum@yahoogroups.com, "Ed Gardels" wrote:
>
> --- In WanderlodgeForum@yahoogroups.com, Rick Davis wrote:

> After replacing fuel filter and many suggestions, I took it to onan/kobota
factory authorised service center here in Fort Worth. It cost me $300,but its
started perfect every time since.
> They found that the preheat wasnt getting to the plugs. The CANNON PLUG
between the contol box and the engine was the prob. They bypassed two wires
around the plug. The cannon plugs can causemany problems after corrision sets
in. Only thing is now mine started to over heat and shut down starting
yesterday. will look at it when it stops raining.
> Hope this might help
> Ed Gardels 89SP
> Arlington Texas