turbo owners: caution in transport

[slowzuki]

EGT's on a diesel are very low at idle, its essentially pumping a lot of extra air through as cooling. Gas at idle has low air flow from closed throttle.

 

[2Botas]

EGT's on a diesel are very low at idle, its essentially pumping a lot of extra air through as cooling. Gas at idle has low air flow from closed throttle.

That makes sense. But less than 200?? Although I wouldnt be surprised. Come to think of it, our new detroit series 60s have afterburners to keep catylitic converter temps above 600.

 

[Smokin Diesel]

My Dodge/Cummins idles right about 200* pre-turbo egt once warmed up. I've seen as low as about 180*. That's why you'll never get most diesels up to operating temp in the winter time without some sort of load or increased rpms. Figure that the diesel engine is around an 80:1 air/fuel ratio at idle. Not much fuel at all to keep things warm.

 

[madslick]

I quit ...
: (

... the weather up here is great...
... we might have some rain tonight, and later it will be cloudy...
... tomorrow's weather will be cloudy with a high percentage of rain...

 

[RobJ]

Another thing I don't know.

I was told that loading the tractor backwards is recommended to prevent the tractor from tipping over backwards if going up a steep incline to load on the trailer/truck. I dunno. However, my cab doors open like a regular car door and I have a FEL that makes sure I don't get light in the front when climbing up on my equipment trailer. Therefore, I always load with the tractor facing forward. That way I don't have to worry about one of my cab doors popping open and being ripped off. But, as I said, what do I know...I just don't want to think about buying new doors for my cab.

Front or back? Probably several factor, if you only have a tractor then the COG on the truck would say load it backwards, if you have an implement on it, say a BH, loading it backwards would push the cog of the truck to far to the rear so the tractor would be loaded facing front. JMO...anyway.

 

[RobJ]

To be honest, I cant speak very much from experience when it comes to turbo diesels. But one thing i do know is that impeller housing temps on a turbocharged gasoline engine will range from 375-950 degrees depending on engine load. Even with extended idle time the inpeller housing never drops below 350 degrees. And considering diesels run similar EGTs, I cant imagine a diesel turbo running any cooler. I have seen impeller housings hit 1100 degrees under full load using an infrared thermometer. (this was with EGTs of about 1325 degrees, which is higher than you will see in most diesels.) Nonetheless, I dare you to place your hand on the impeller housing on an engine that has been running for at least 10 minutes, idling or not...... You might retract the under 200 degrees figure. If it is under 200 you should be able to touch it for about 2 seconds without burning yourself.

Maybe i will have to give this a test on our M105. See what the infrared says under certain loads... Who knows, i could be 100% wrong. Like i said, I cant speak from experience on diesels. But now i want to find out

I can speak from experience. The turbo housing will stay near or at the temp that making it hot. IE, it EGT are 1000 degrees, it'll get to 1000 degrees, it can't get hotter than the source. When the source temps fall off (no load), everything will come down in temp. Just like when you turn the heat off the stove burner, it immediatly starts to cool. An oven is a little different because it's insulated.

 

[RobJ]

OK enough comments, I towed the tractor home this weekend. So I wanted to protect my non turboed tractor. I hope this is ok!!

 

[ray66v]

I quit ...
: (

Me too.

 

[Wayne County Hose]

OK enough comments, I towed the tractor home this weekend. So I wanted to protect my non turboed tractor. I hope this is ok!!

Hey Rob, is that a Kuboota?

 

[RobJ]

Hey Rob, is that a Kuboota?

hehe, Man you are a regular commodian!! Just praticing safe towing...oh yeah I should have put one of those on there!! LOL

And why yes it is. What if I had a JD, NH, Kioto. Test your wit on that one smart guy!!