Was:HELP - 8V92 will not start NOW It runs!

[Gregory OConnor]

Larry, glad you got the bus going. The only reason it even matters
what the problem was is to keep it from happening again. If you
found the problem to be the fuse that is good but if you fixed the
issue by mistake, you don't know if you corrected the result or
repaired the cause.

Not to "beat a running bus" but I cant see 20 seconds of a diesel
running at 600rpm with only 50% or the injectors working???? and if
they all 8 did work for the 20 seconds and removal of 12v shut off
one bank which shut down the engine, both exhaust manifolds would be
identical heat????

I put the fuse on my list of obvious fixes. What is interesting is
Paul&Jo Carver (Cool couple) had problems starting their 93pt
several years ago and it turned out that one of the starter
bateries was bad. Wonder if it was the one linked to the fuses??
Last month or so MrCarver posted that he had simular issues and
found one other problem. wonder if it was related to the battery and
wonder if your center battery is screwed also?????? Could be that
you moved battery cables out of contact then back into contact
while poking around all week and it is an issue waiting to happen
again.

If a guru is someone who tells you twenty things to try and one
works, Im a RockBreaker guru. I beat on a Boulder atop a cliff in
Palmsprings 2,000 times today and it broke.

GregoryO'Connor
RockBreaker Guru

--- In WanderlodgeForum@yahoogroups.com, "Larry Kehler"
wrote:
>
> OK Thanks for all the help to everyone that made suggestions.
>
> Today I talked to the old series 92 guru at Detroit Diesel about
what
> could cause one bank to not fire. He said it could be several
things,
> a clogged fuel hose, a clogged restricter valve or a blown
injector fuse.
>
> I checked the hose for that side by running a long screwdriver
though
> it. Then found the two inline fuses attached to the center
battery.
> I followed the wires to the center DEC plug. That plug has two
green
> wires that go to the battery ground lug. Four orange wires that
merge
> into two wires that go to the inline fuses. One fuse is the curb
side
> bank injectors power and the other is the street side bank
injectors
> power. I wire brushed all the connectors and checked the DEC plug
> wires for 12 volts.
>
> I found that someone had cut a wire off the engine that looked
like a
> ground, so I added a ground wire from the engine to the ground bar
> just for good measure.
>
> After purging the air, the old 8V92 fired up and I pushed the high
> idle switch for that great purrrrr.
>
> This difficult situation was a real learning experience. I feel so
> much more comfortable now with the engine. While I have worked on
a
> lot of engines in the past, the 92 was a mystery that worried me a
> lot. I now know what I would do if the beast quits on the road some
> time. I somehow gained a real understanding of the fuel and DEC
> system. Just knowing that if the check engine goes out after the
10
> second start-up, the DEC is likely OK is a great help. I was so
> worried that I had cooked the DEC.
>
> I really appreciate knowing that all you guys are here to make
> suggestions and send diagrams when we need them. Thanks again and
I
> am ready to help with some suggestions now on the fuel and
injectors
> system.
>
> Larry Kehler
> 94 PT-40 WBDA "BAM"
> St Louis
>