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Turbos & Intercoolers: Do's & Don'ts???

Started by Jabong, November 01, 2005, 09:10:51 PM

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Jabong

Hi guys.  We're getting our Fortuner Diesel this coming weekend.  Sa wakas!  First time to own a diesel.  I read somewhere before that for turbocharged and intercooled engines, you should wait for them to warm up to normal temp before driving off and you should also let them idle for about a minute before shutting off.

Kailangan ba talaga gawin yun, strictly?  May I have some other tips for turbo/intercooled engines?

clyde

congrats sir for the new vehicle  :D

letting turbo or n/a engines warm up before driving off is a very good practice so as to lubricate properly the internals for better longetivity of engine parts. while on n/a engines, you can always shut it down immediately after runs but on turbo'd engines, it should be idled for some time before turning off just to completely drain the oil from the turbo. this is required so as not to let hot temp left over oil dry up inside the turbo w/c can lead to seals and bearings damage in the long run. you can always install a turbo timer para less hassle especially when your in a hurry to leave your car.  :) integrate it with your alarm system's auto lock and you're good to go  :)


mykboo

if u drive fast for a long time
ex. u drive 100 on NLEX then u decide to stop at a gas station wait mga 2 mins after parking before u turn the engine off

kontrabulate

Modern vehicles don't need to be warmed. All it need is about ten seconds to pressurize and circulate the oil before driving. Go easy on the accelarator till the engine reaches proper operating temp. The most wear and tear on engines occurs during start up until it reach its proper operating temp. Putting load(driving) on the engine warms it up quicker, saves fuel and gets you where you're going faster.
All turbos are oil lubricated. Pressurized oil from the engine passes through the bearing to lubricate and cool it as long as the engine is running and the oil is circulating.
Most modern turbos also have a water jacket that circulates coolant around the bearing housing to provide additional cooling. When the engine is shut down, the circulation of oil stops but the coolant will continue to circulate by convection to carry away heat from the turbo. This is why turbo timers aren't necessary in water-cooled turbos. A short period of idling is still a good idea, especially after hard running, but it isn't as critical.

Conan®

#4
Turbo engines need to be driven gently for it to reach its normal operating temperature before you give it the lead foot.

kontrabulate

Quote from: Conan on November 03, 2005, 06:49:21 AM
Sorry to disagree but I think Turbo engines need to be driven gently for it to reach its normal operating temperature before you give it the lead foot.
Who do you disagree with?

Jabong

Thanks for the inputs.  Well, I always warm up our cars for 2-3 mins before driving off and I let them idle for about 30 secs before shutting them down.  It just seems like turbos need a little more attention and I'm just worried about other people who will be driving the new car from time to time, my dad particularly (who likes to rev the engine after starting then immediately drives off).  I guess I'll have to lecture them a bit.  ;D

Anyway, what are the good diesel engine oils available locally?  Is the Mobil1 Truck & SUV oil sold locally?

luwe

I don't think you have much to worry about  Jabong as the Fortuner Diesel comes with the turbo out of the factory. I suppose you can just remind your dad or whoever else is going to drive the truck to take it easy just after leaving and just before arriving. I think that's a good habit even for NA cars.
Protegetech http://www.protegetech.org/
Ford Club Philippines http://www.fordclubph.com/

speedyfix

Quote from: Jabong on November 03, 2005, 09:14:20 PM
Anyway, what are the good diesel engine oils available locally?  Is the Mobil1 Truck & SUV oil sold locally?

had excellent feedback from customers about the motul diesel oil.
Migs - 09175347636
Shop - 7226117

www.speedyfixph.com

308 P. Guevarra corner Seaview St San Juan

Manga

#9
Jabong, congrats! You got one fine baby.
Apparently, this letter of gibs to my inquiry doesn't show on ASK GIBS. But here, let me post our correspondence:

Hello Gibs,

I may be confident of how good dmax can run. with all the Umps a truck can give i sometimes take it to top speed. We do regular maitenance and oil change. However, there is only few to be said by the isuzu mechanics about turbo care, and very little input from the manual.
Learning from turbocharged cars, they seem to use turbo-timers to maximize lubrication when the motor is switched off.
According to isuzu most turbo failure and damages happen after warranty... Ouch!
Would you recommend turbo-timer on our truck? Or if we opt not, how SHOULD we take care of our precious boosters?

Thanks and more Safe Motoring. Ü

Dear Mark,
The turbo has a planned obsolecence.Any rotating unit does have a life be it tires,bearings,starters,motors,compressors etc.Sadly the turbo will die after your warranty.The turbos of today are stronger and better desined and materials as compared 10yrs ago.Your turbo should be good for at least 7 -10 years with normal use at 150000kms.Turbotimers work but very minimal.Its better if you just jchange the oil regularly and use sythetic because it doesnt coke like cheap mineral oil adding to the abrasion.Just idle it 1minute and thats enough.What kills the turbo is the cold start up becuse not enough oil is circulated to the bearings from the oil pump causing scarring to the shaft and seals...thus white smoke and failure.Once you start,YOU MUST LET THE CAR IDLE AND DONT REV THE CAR FOR  AT LEAST 1 MINUTE!!!  OK?That will prolong your turbos life.Thanx for writing
gibs
09205685071

With all the protective tech we have on our cars, it is still important to give TLC to our car, which it so deserves.
When in doubt, just follow proven principles. ;)

Let your DAD READ this thread. It's his precaution kung baga.

BTW, Toyota D4-D is second generation commonrail diesel.
Quote from: Nacho Libre on August 31, 2008, 11:23:06 PM
...Some people get too hung up on hardware and technology and for

Rocky

From what I gather from you guys, it would be ok to turn the ignition off of the turbo charged intercooler engine without idling first for around 5 minutes when you're driving in typical city traffic but not if you're hard driving in the highway.

This is the first time I owned a diesel and turbo charged intercooler...so talagang newbie to this....

Manga

Quote from: Rocky on November 22, 2005, 09:30:46 AM
From what I gather from you guys, it would be ok to turn the ignition off of the turbo charged intercooler engine without idling first for around 5 minutes when you're driving in typical city traffic but not if you're hard driving in the highway.

This is the first time I owned a diesel and turbo charged intercooler...so talagang newbie to this....

Just to be safe idle around a minute. ;)
Quote from: Nacho Libre on August 31, 2008, 11:23:06 PM
...Some people get too hung up on hardware and technology and for

IMm29

Quote from: J.M.E.N on November 04, 2005, 07:55:00 PM
Would you recommend turbo-timer on our truck?
Though I'm not Gibs: Yes. This should eliminate the inconvenience of having to wait for your ride to cool down while idling. There is now no excuse not to let your ride idle after a run.

The Devil Drives Prado

Conan®

Quote from: Rocky on November 22, 2005, 09:30:46 AM
From what I gather from you guys, it would be ok to turn the ignition off of the turbo charged intercooler engine without idling first for around 5 minutes when you're driving in typical city traffic but not if you're hard driving in the highway.

This is the first time I owned a diesel and turbo charged intercooler...so talagang newbie to this....

It depends more on whether you were driving "on boost" or "off boost" in the city. I'm not sure but I'm assuming that most turbo-diesels don't have a vacuum boost gauge which measures the amount of boost your turbo is delivering. So you would have to do it by feel. If you're driving in the city and you feel that the turbo is coming on a lot then you should idle the car for 1-2 minutes before shutting it off. If you're really short-shifting or driving at really low rpm's (below 2,000) then it would be ok to immediately turn off the car as you were not giving the car enough rpm's to keep the turbo spinning.

Now if you drove the car/suv hard for a long distance then idle it for 3 to 5 minutes before shutting off.

Rocky

Quote from: Conan on November 22, 2005, 05:03:18 PM
It depends more on whether you were driving "on boost" or "off boost" in the city. I'm not sure but I'm assuming that most turbo-diesels don't have a vacuum boost gauge which measures the amount of boost your turbo is delivering. So you would have to do it by feel. If you're driving in the city and you feel that the turbo is coming on a lot then you should idle the car for 1-2 minutes before shutting it off. If you're really short-shifting or driving at really low rpm's (below 2,000) then it would be ok to immediately turn off the car as you were not giving the car enough rpm's to keep the turbo spinning.

Now if you drove the car/suv hard for a long distance then idle it for 3 to 5 minutes before shutting off.

Thanks Conan/Jmen.

I spoke to HARI regarding their CRDI engine and they said there is no need for a turbo timer on the Starex. Well, just to be on the safe side, will do what you guys suggest.