What is evryone's thought on letting the turbos cool down after driving? I have been told a bunch of different things... Are the turbo cool down modules and kits a waste of money? Should you let your truck idle before shutting it off?

thanks

 

i think for took care of this for the new ones but i know the 7.3L and early 6.0L need some idle time to let the turbos cool down

 

If the turbo is coolant cooled then it will be ok, still wouldn't boost a ton then immediatly shut the motor off though. Turbo timers are generally only needed on oil cooled only turbos, because the oil has no real way to pull the heat from the turbo bearings. Hope that helps some

 

i think the manual says something about letting it cool down if its been driven for a long time or under unnusual load. Im going to look again.

 

if you are using synthetic oil nd jusd driving along,,you can just shut it off,,if you are hauling 15000 up a steep hill, let it idle for a minute. synthetic wont cake up on the turbo shaft,,dino oilwill.

 

thats good to know. is the standard stuff Ford puts in it synthetic or dino?

 

Factory fill is dino.

The only API CJ-4 certified synthetic currently available is Mobil Delvac 1 ESP at a cost of about $35 a gallon.

 

As a general rule, when operating any piece of turbo-diesel equipment, if you've been working it hard (high boost) it's a good idea to let it cool down for 1 - 4 minutes before shutting it off. The longer that you've been running it at full load, the longer (towards 4 minutes) that you should let it cool.

If you are lightly tooling around, it's usually ok to shut it off right away.

 

I read this on Banks Website.

MYTH #7
You have to let a turbo-diesel idle for two minutes before you shut it off.

FACT
This is a current myth that has a basis of fact stemming from many years ago. It also has a kernel of truth regarding today’s turbocharged gasoline engines that operate at higher peak exhaust temperatures than turbo-diesels. In the early days of turbochargers, the turbo shaft was supported by a babbitt bearing that could seize, or even melt, if the engine was shut off immediately after sustained boost conditions where the turbocharger would “heat soak”. A two minute cool down at idle allowed the turbocharger to dissipate any remaining spinning inertia, and the oil circulation cooled the bearing and prevented oil “coking” in the bearing area. Turbochargers haven’t used babbitt bearings for over 30 years, and today’s oils resist coking. Synthetic oils won’t coke, period. With a turbocharged gas engine, it’s still good insurance to let the engine idle for 30 seconds to a minute to allow the turbo or turbos to dissipate any inertia and to cool the bearing area to prevent oil coking, especially if the engine has been worked hard just prior to shut-down. Of course, using quality synthetic oil eliminates this potential coking problem.

Today’s turbo-diesels are a different story. There is really no reason to “cool down” a turbo-diesel these days, but you won’t hurt anything by doing it either. You can still find people who swear you have to do it, but the myth is fading. Maybe they just like to sit and listen to the radio

 

i usally look at my egts when they cool off to under 500 i know that its safe to shut down, basically just use your judgement to when working any diesel engine with a turbo, if its hot let it cool down uniformaly then shut it off. They cool off rather fast just a minute or so.

 

how are you monitoring your egt's?

 

Book says to let idle for 3-5 minutes to cool turbo and prolong engine life. Going by the Banks quote above, maybe it is old news, just like when everyone thinks a dually is a one ton.

 

yea well who could listen to BANKS when they are the ones causing a lot of problems with their aftermarket chips and such?

 

yeah, its all banks problem,,they called me up and forced me to put their stuff on my engine? if you want big power, be prepared to pay for it sooner or later.

 

It doesn't matter what chip you put on the 6 liter, it was probably going to cause you grief.