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Old 05-10-2015, 09:22 PM   #11
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It was soooo easy before DEF and all the new regs put on diesel engine manufacturers. Crank her up and let it idle for days.


I've heard and read 5 minutes is long for idle time. This is not written in stone tho.
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Old 05-10-2015, 09:36 PM   #12
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Does this apply to the Cummins diesel in a pick up too? Just got our truck Saturday so we didn't know this.
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Old 05-11-2015, 10:09 AM   #13
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scoot, I would think it applies to all diesel engines having to run DEF.
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Old 05-11-2015, 02:57 PM   #14
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Quote:
Originally Posted by Campin Cajun View Post
It was soooo easy before DEF and all the new regs put on diesel engine manufacturers. Crank her up and let it idle for days.


I've heard and read 5 minutes is long for idle time. This is not written in stone tho.
5 Minutes sure does seem short after watching big trucks idle all night long.
I had read a couple of opinions, but nothing from Cummins that I can take to the bank.
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Old 05-11-2015, 03:36 PM   #15
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Wet stacking is a problem with diesel engines and isn't limited to the Cummins engine or just because of DEF requirements. "Wet stacking" happens when a diesel engine is run too long with no load and operates below its optimum temperature. Unburned fuel can foul the fuel injectors, valves, turbochargers and more.


To overcome this problem during long idle periods, the engine must run at a fast idle, especially in cold weather, to keep the engine temperature up.




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Old 05-11-2015, 03:37 PM   #16
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I agree Dan, but it is almost impossible to find something stating how long slow idle time is. It's frustrating.

I go with the 5 minute rule on my coach. I'm probably way early on it but I rather be safe than sorry.
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Old 05-11-2015, 04:42 PM   #17
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I agree Dan, but it is almost impossible to find something stating how long slow idle time is. It's frustrating.

I go with the 5 minute rule on my coach. I'm probably way early on it but I rather be safe than sorry.
I know waht you mean. I probably way overcompensate and try to ilde as little as possible. I know someday I'm going to fee like a fool when Cummins comes out some day and says 'excessive idle' is over 2 hours.


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Old 05-11-2015, 05:07 PM   #18
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I hope you guy's don't do that at a CG. My truck doesn't use DEF, My manual says no warm up period is necessary. I can understand warming up your coaches til air tanks are full. Then just pull out and go slow. I have seen people at 6:00 AM start there MH and let them run for 1/2 hour before they pull out. I'm sure they do not mean that. I know all FR members are considerate to there neighbors, but also I understand that they have to start to pump that DEF. But not a half hour as I have had done to us more then once. Maybe someone should find out what they recommend being nobody on this thread seems to know. As much money you guy's paid for them beautiful units, I would be making a call. Just a suggestion. And I know this is a MH thread, but I'm the one who has to listen to it. But I still do not want you to damage your power system......And I do not mean to offend anyone.
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Old 05-11-2015, 05:33 PM   #19
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You seem upset gljurczyk???
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Old 05-11-2015, 06:13 PM   #20
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You seem upset gljurczyk???
I'm not upset at all just making a comment. I guess you took the statement wrong. I thought I made that clear. But I guess I didn't. Maybe you should reread the comment. But I would make sure what they mean by Idling and what is safe not to damage your engine. Sorry if you took it the wrong way.....
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