2nd Gen Non-Engine/Transmission starting and shutting down?

[hummincummins2]

how long should you let truck idle before running? and how long do you need to let truck idle before shutting down? is it crucial to do this? does it really shorten the life spand of your cummins diesel engine if you do not follow proper procedures?



thanks steve

 

[AKaiser]

Warmup idle no longer than 5 minutes. My 3G I keep it under 1500 until the needle begins to move. I start it up and once the oil pressure comes up (a second if that) put it in gear and take it easy out the drive. Once it's over 140 F, the oil should be thin enough to run WOT. That's the biggest issue. It will not warm up without a load, especially in cold weather. Your manual should tell you how long to idle prior to shutdown to cool down the turbo to prevent the turbo from being "cooked" or more properly "coking up" from hot oil left in a hot turbo. Shouldn't have to cool any longer than 5 minutes under a full load. 1-2 minutes cooldown easy driving with no load.

 

[mlandis2]

I'll idle a minute or two before I drive off and then drive "normal" which for me is pretty gentle when unloaded. No heavy throttle until the temp is almost all the way up.



Shutdown I use the pyro. When it comes down to 300 or so its time to turn it off... ... rarely more than a minute or two.



Not really sure how critical it is but its the way I was taught. I figure if I'm good to it, it should be good to me.

 

[liberty]

I like to warm mine up in the morning and cool it off before shutdown, but I work with alot of guys that drive it immediately after a cold start, and never give any time for cooldown when they stut it off, and thier trucks have run perfectly for years. The guys i have in mind dont pull anything most of the time so the only heat there would be is what was built up running empty. I think there's alot of people that dont know or care enough about the proper way to run a diesel engine, and although i'm glad they're not driving mine, there doesent appear to be any immediate adverse effects on engine parts. But i'm sure that longevity of their engine is being sacrificed.

 

[TWilkening]

Unless it's below freezing, I usually wait until the oil pressure settles, then take off gently. If below freezing, I shift it into neutral and the high idle takes care of the rest. I don't usually let it high idel until the temp gets up, but I may let it run 5-10 minutes.
As far as shutdown, I live on gravel, so I pretty much let it coast once I get off the highway then shut it off once I hit driveway, about a quarter mile off the road. If i've been working it, I let it sit 5-10 minutes before shutdown.

 

[DonTX]

I use the pyro, down to 300 before killing her, ALWAYS! Warmups are not an issue down here in the tropics.

Don't forget to warm up in neutral, in park the transmission is not pumping lube.

 

[Brand-X]

I never WOT until complete warm up 190 my DTT pumps in park... George

 

[hummincummins2]

thanks guys!

 

[Missouri Mule]

I let the oil pressure come up then I take off. It takes about 4 to 5 miles to warm up to 180.

Cool down. If your running the highway (rest areas don't turn off, exits for food, hotel ... 5 minutes should cool it down enough to turn it off) or pulling a heavy trailer let it cool down before shutting down.

 

[NoSeeUm]

If it is really cold I turn the exhaust brake on for a bit, ussually until I am done scraping the windshield. Either way I just drive easy until the water temperature starts to get up around 160F.



For shutdown, I am pretty strict on less than 300F EGT. Most times I like it below 280F. I almost always find myself setting my turbo timer for at least one minute no matter what the temperature actually is.



Jim

 

[Nate]

Fire it up, WOT, shut down... . that's how the trucks are run at work. Most of them see 3-4 mile trips at most, and a few have over 100,000 miles to give you an idea.

 

[JacobsD]

On startup I usually let mine idle for 5-10 minutes before leaving, then at shutdown I watch the pyro and let it come down to under 300 before killing it. When its real cold out, I usually leave it running when I go someplace, especially if its quick like run in for take-out or into the parts store or somthing.