letting truck idle before turning off to cool turbo.....
- Thread starter Nick NY
- Start date
InvisiBill
Active member
You don't have to, but it won't hurt. Other turbos are cooled only by the oil in them. If you just shut off the engine, it fries the oil. Ours have liquid cooled center sections, so it isn't as important. If you just did a hard WOT run before pulling into your driveway, it might not be a bad idea to let it run for a bit to cool it down some more. But idling or a turbo timer isn't as necessary on these trucks as on other vehicles.
Coolant does help a great deal in reducing oil temperatures in the turbo, it does not necessarily mean that it should not be idled. My other car is watercooled and it is recommended by the manufacturer to let the turbo cool off. Only way to know for sure is to put an oil temp gauge on the oil outlet and check if the temp is below coking temperatures.
Alex
Alex
InvisiBill said:
I may not own a sy/ty, but I do drive a car equiped with a garrett turbo with a water cooled center section. Just beacuse its water cooled dosn't mean that that you don't have to let the bearings in the turbo cool down. If I rember corectly the sy/ty has a mitsubishi heavy industrys 17g turbo charger, in wich case all mitsu made turbos are recomend to be "turbo timed" if you don't belive me just hop in a 1g(90-94) eagle talon, mitsu. eclipse or plymouth laser and flip down the visor, it says right there that you should let you car idle to cool down the bearings in the turbo.
If thats not enough for you, when I very first bought my car it had been driven by a girl for its entire life. You know what that means, no synthetic oil, no turbo timer, and no cool down
. The first time I changed my oil, chunks of coked up oil came out(think of small black gummy bears waving at you as the oil passes out of the pan). Sence then, I have not once seen any coked up oil come out(wich is proably do more inpart to the fact that I run Mobil 1 full synthetic than the fact that I let my turbo cool down). Its only 60 seconds, just pop in a good cd and listen to some tunes, while you do your turbo a favor.
Tommyquest
The Member's Member
Spinall4 said:InvisiBill said:
I may not own a sy/ty, but I do drive a car equiped with a garrett turbo with a water cooled center section. Just beacuse its water cooled dosn't mean that that you don't have to let the bearings in the turbo cool down. If I rember corectly the sy/ty has a mitsubishi heavy industrys 17g turbo charger, in wich case all mitsu made turbos are recomend to be "turbo timed" if you don't belive me just hop in a 1g(90-94) eagle talon, mitsu. eclipse or plymouth laser and flip down the visor, it says right there that you should let you car idle to cool down the bearings in the turbo.
If thats not enough for you, when I very first bought my car it had been driven by a girl for its entire life. You know what that means, no synthetic oil, no turbo timer, and no cool down
it's a TD06-17c
manitoufs
Member
I did some thermographic analysis a while back on my Ty. After a hard run I saw temps on the exhuast side of the turbo in excess of 800 deg. f. The compressor side would see in excess of 260 deg. f. The bearing area would be around 300 deg. f.
IMHO, the premature shutting down of the cooling system (i.e. the engine) could allow those 800 deg. temps to transfer through the bearing area as the temps equalized.
I put a TT on my truck as a result of those observations. I have found it to be cheap piece of mind. I don't use it all the time but it is there when I feel it would help.
IMHO, the premature shutting down of the cooling system (i.e. the engine) could allow those 800 deg. temps to transfer through the bearing area as the temps equalized.
I put a TT on my truck as a result of those observations. I have found it to be cheap piece of mind. I don't use it all the time but it is there when I feel it would help.