Inject Resp Time Long

[DKO]

I will follow later with more details as they become available and pertinent, but I have a question. Has anyone ever seen this particular alert?



This was on my Detroit Diesel display. It says Inject Resp Time Long, which I translated as Injector Response Time Long. I know what Google brings up, but has anyone had this exact alert? If so, what was going on at the time and what was the problem and solution?

Thanks to the quick advice of Jeff Rowe (East Tennessee Luxury Coach) and others, the bus and my girls are safe, but I need to have as much information as possible soon. I would appreciate some feedback in the next day or two if you know anything.

Thank you,

Davy

[bevans6]

From what Google tells us, if you can read a code it would tell you what injector is failing, or all injectors.  It's a known injector harness issue on S60's, and it's a known injector failure as well. 

[DKO]

It was the harness and it has been an adventure getting it replaced. It is almost finished now. I will update later, but I thought you might be interested in this.

The mechanic had just removed the valve cover, Jakes and rocker arms and he was shining his light down in amongst the valves. I was standing on the opposite side of the engine when I heard him say excitedly, "Oh No! Look at that!" Trust me, those are not the words you want to hear at that moment.

What was it? It was an oil-soaked shop towel tucked between valves 3 and 4.



Here it is out of the engine.



I have owned this coach since March 2008. I have driven it 170,000 miles. It had about 180,000 miles from two previous owners. The first owner kept meticulous records including transcribed phone conversations with Prevost and Featherlite. The second owner left behind great maintenance records as well. There is NO mention of this engine ever being opened.

That leaves me to believe that shop towel has been in there since January 1995, 24 years and 350,266 miles.

I shudder to think about what could have happened during any one of those miles. If you look closely, you can see the shop towel has a few ripped places. It looked like the constant motion of the valves was leaving the mark. It could have been inching closer to a catastrophic failure.

Have you ever seen this?

Makes me wish I was on social media and knew how to use it. I would put these pictures on Detroit's Twitter or Instagram.#SurgicalSpongeLeftInTheBody

I will have more once we are on the road and have a few miles under the wheels.

Davy

[Jim Blackwood]

Auxiliary oil filter

[Geoff]

That shop rag was in no position to hurt anything.  I am a diesel mechanic and have found rags in oil pans, intake screens, turbo outlets and air filters.  Some of those caused problems so I found them looking for the cause of the problem.

[RichardEntrekin]

I am not doubting or questioning the records you have. They are quite impressive.

I do find something curious though, if the engine has 350k miles on it, you would think with meticulous owners that during that time frame, someone would have run the overhead to adjust valves, injectors, and jakes. My owner's manual for that era 60 calls for the adjustment around 100k miles.

Just mentioning other possibilities ...........

[luvrbus]

I bet the engine has been into, the series 60 in that era had several upgrades like the head bolts for example

[DKO]

Maybe you are correct. Maybe it has been opened. I may never know for sure. I reached out to the second owner this week to check the reliability of my records but the email address is now dead. It has been ten years since we corresponded.

Davy

[luvrbus]

Run the serial number from the engine through a Detroit dealer they will have all records if done at Detroit

[chessie4905]

If done by a detroit dealer, records should show a charge for one grease rag.

[DKO]

That is funny. I kept it. I wonder if I could send it back for a refund.

[Jim Blackwood]

Possibly... minus the recycling/cleaning fee

[richard5933]

I had a similar incident some time ago - not quite as internal to the engine but still surprised me. When I picked up my car from the dealer after a simple tune-up, the car sounded and felt like there was a jack hammer under the hood. Don't know how the dealer missed that, even driving it out of the service bay. I immediately went back to have them investigate. Ended up that the mechanic had dropped a spark plug when doing the tune up, and it had gotten wedged between the transmission housing and the firewall.

[Boomer]

I found a nut in the oil pan on the initial oil change of one of our new H3's.  All fluids were always changed on arrival straight from the factory (3,500 miles).  Off came the valve cover for a complete inspection.  Never did find out where it came from and the coach is still running fine to this day from 2001.

[chessie4905]

Probably a connecting rod nut.lol