ISX15 Idling in farm operation

[JimT]

(07-25-2020 )tree98 Wrote:  Rebuild that high pressure fuel pump now!!! Those things are famous for failing and taking the entire engine with it, meaning you can't even rebuild it because its so full of metal shavings. You're right at the mileage where the guts need to be replaced.
As far as the rest of it goes, get it demandated and don't look back. But have it done by someone HERE that knows what they are doing!! ie. MommaBurt, unilevers, Mr. Hagg

He mentioned having proof that it was done at some point in the past.

However, you can plan on replacing plungers and tappets every 400,000 mi or so as a preventative maintenance. For a few hundred bucks it's good insurance. If unsure of the condition, it's really easy to remove the head for inspection. Just follow the procedure available in quickserve.

As for the aftertreatment system, if you're not driving for at least an hour at a time you will have frequent problems with the system not being able to clean out the soot as designed. This will lead to an increasing frequency of parked regens (either initiated via a switch on the dash or via Insite). The more you perform parked regens the more the reactive coatings in the DOC and SCR cans will wear away. Eventually the system just won't be able to clean itself no matter what. In the mean time you will be using an excessive amount of fuel to actively burn away the soot in the filter. In your application it would probably be best to just eliminate the problem before it becomes a problem. Normally I'd suggest someone run the system until it starts giving them problems, but I suspect you will start to have problems within a week or two based on your description.

As for idling, it's bad for the dpf and best avoided regardless of mandate. My opinion: If you're going to sit for more than 15 minutes at a time I'd recommend shutting the truck down. Let idle for a minute or two or three to help prevent heat buildup then shut it down until you're ready to go again.

As for letting the truck sit for extended periods, start it up, let it run for a bit. It lets fluids circulate, oil to lubricate, get it up to operating temp to help minimize moisture buildup. Drive it around a little to keep the grease from drying out anywhere. Watch for critters that might make a nest.