[AT] EcoDiesel update

Stephen Offiler soffiler at gmail.com
Wed Aug 31 10:01:52 PDT 2016


Banks knows a thing or two about turbos.  Check out Myth #7 at this link:

http://bankspower.com/techarticles/show/30-Turbo-Diesel-Fact-&-Fiction


SO


On Wed, Aug 31, 2016 at 11:33 AM, charlie hill <charliehill at embarqmail.com>
wrote:

> >From what I've read and from my limited experience with heavy trucks,
> turbo life is ended by bearing failure and bearing failure comes from not
> letting the turbo cool properly before shutdown.  All Turbo engines should
> be allowed to run idle for several minutes before shut down unless they
> have oilers on them that keep them lubed prior to engine start.  When you
> shut them down hot the heat from the turbo burns away the oil on the
> bearings
> and when you restart the bearings are dry.
>
> Charlie
>
> -----Original Message-----
> From: Dennis Johnson
> Sent: Wednesday, August 31, 2016 12:56 AM
> To: Antique tractor email discussion group
> Subject: Re: [AT] EcoDiesel update
>
> Cecil
>
> My Grand National has close to 170K and needs a third turbo. Think turbo
> life may inversely relate to engine size.
> It may also be effected by emissions junk on newer vehicles, that require
> more back pressure and higher temperatures to overcome DPF filters and
> Catalytic converters. Norms for engines before this junk do not fit well
> with engines that have this junk.
> Various forums discuss some EcoDiesel's having turbo issues between 100k
> and
> 150k.
>
> Dennis
>
> Sent from my iPhone
>
> > On Aug 30, 2016, at 10:33 PM, Cecil Bearden <crbearden at copper.net>
> wrote:
> >
> > I would think that 111K miles is rather early to be having trouble with
> > this.   I have turbos on Ford/navistar powerstrokes that have over 250K
> > on the original Turbo.
> >
> > Cecil in OKla
> >
> >
> >> On 8/30/2016 8:38 PM, Dennis Johnson wrote:
> >> My Ram EcoDiesel let me down a few weeks ago at about 111,000 miles, the
> >> evening before I had planned a trip.
> >> The "need to regen the DPF" light came on for a minute as I was parking.
> >> I stopped to unload something, and then restarted. When I restarted it
> >> immediately went to the "DPF full - go to dealer with $$$$$$" message,
> >> and was in the "Limp mode" of 35 MPH max, and not up shifting much.
> >> Got back from trip and I decided I needed to do something different, so
> I
> >> sent my ECM of to PPEI to repair/update it, and then had the entire
> >> exhaust system "rebuilt". Got things back, and finished installing stuff
> >> yesterday and today. First test drive seems to have improved mileage a
> >> little bit. Will know more after a little time and a few more miles.
> >> Also installed an "EDGE" brand engine monitor that gives several things
> >> from the OBDII port. It is an impressive digital gauge set. It might
> also
> >> be able love to read or clear codes, but I need to read more of the
> >> manual to figure it out.
> >> This system came with a separate thermocouple for EGT, but I have not
> >> installed it yet. After seeing there is factory data, not sure that I
> >> need to drill another hole to get a second data point.
> >>
> >> Exhaust gas temp 1  (assume turbo inlet) - running 750/770 at 70 MPH,
> >> over 1020 F at full throttle and 25 PSI boost for a little bit. Runs
> >> 300/325 it idle.
> >> Exhaust gas temp 2 (assume turbo outlet or DPF inlet)  - running 200/203
> >> at 70 MPH
> >> Trans Temp
> >> Speed
> >> Gear engaged - really nice to see - this is something that was lacking
> >> with stock gauges.
> >> Coolant Temp
> >> Oil Temp
> >> Boost, - running 11-14 at 70 MPH flat ground, up to 25 at full throttle
> >> Soot % ???
> >>
> >> Does anyone have any good ranges for these parameters, especially the
> EGT
> >> 1 and EGT 2
> >>
> >> Let me know??
> >>
> >> Now, next thing is that 111K may be close to the limit on the original
> >> turbo. Looks like it is leaking oil into the intake, so that may be the
> >> next project.
> >>
> >> Thanks,
> >> Dennis
> >>
> >>
> >> Sent from my iPad
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