Turbocharger maintenance?
Is there any maintenance required for the turbocharger? I thought the K04 in the SS/TC uses engine oil from the main system, as well as engine coolant, thus negating the need to change its own independent supply.
Is there a special procedure for changing the engine oil besides changing the filter and draining the pan? |
You don't have to do anything special, just don't shut down the car after spirited driving and change your oil/filter every 5k or whatever you prefer.
|
Awesome. I started a new habit of idling for about 1 minute before shutting down the engine. I'm starting to do that with my other n/a cars just so I get used to it.
|
GM didn't put any turbo timer in the engine computer?
|
I don't believe so. I test drove a SS/TC and had just gotten back from a WOT thrash session and shut off the car in the lot w/o a timer keeping it running.
|
its built in, you hear the fan running after you really push the car... all the turbo cars now have their own way, and our turbo is oil and water cooled... water keeps flowing throw after you shut the car off...
i however just let it idle becuase if you plan on swapping turbo, thats only oil cooled. youll get used to the habbit... |
I am a newb... but even then, I find it VERY hard to believe that GM built my 2009 SS/TC unable to just shut down after "spirited" driving.
I drive THE SHIT outta my SS...and I never idle .. shut that shit right down all the time... flame me for it, call me dumb...maybe the jokes on me, who knows. I don't have 2-3 minutes all the time to sit there in a parking lot or driveway and idle. I just don't think shit is going to happen to my turbo from this. Wasn't this something you had to do with older turbo'ed cars? |
Originally Posted by fshizl
(Post 3876339)
its built in, you hear the fan running after you really push the car... all the turbo cars now have their own way, and our turbo is oil and water cooled... water keeps flowing throw after you shut the car off...
|
Originally Posted by fshizl
(Post 3876339)
its built in, you hear the fan running after you really push the car... all the turbo cars now have their own way, and our turbo is oil and water cooled... water keeps flowing throw after you shut the car off...
i however just let it idle becuase if you plan on swapping turbo, thats only oil cooled. youll get used to the habbit... LAWLZ |
well get a turbo timer... cheap easy to install and no downsides or draw backs.... guarenteed to keep ur coolant/oil flowing so you dont get caking in ur turbo.
also if its water and oil cool'd it dont matter if it cools off it matters that u want oil to keep running through the turbo so it does not cake/ bake to the inside of the turbo( sitting on the hot surface b4 it cools down enought will cause the oil to cake up on the inside) BAD just get a turbotimer( EBAY is cheap and affective) |
No need for a turbo timer and for most people you don't need to sit and let the car idle after you come to a stop before shutting it off. Just drive easy and stay out of boost the last couple minutes of your drive and you'll be fine. One of the single biggest things that will help extend the life of the turbo is running a fully synthetic motor oil and GM made the smart move of requiring synthetic be used in the LNF.
Originally Posted by peachpuff
(Post 3876637)
How exactly does the coolant keep flowing when the water pump isn't spinning?
Originally Posted by ElDude
(Post 3876407)
I am a newb... but even then, I find it VERY hard to believe that GM built my 2009 SS/TC unable to just shut down after "spirited" driving.
I drive THE SHIT outta my SS...and I never idle .. shut that shit right down all the time... flame me for it, call me dumb...maybe the jokes on me, who knows. I don't have 2-3 minutes all the time to sit there in a parking lot or driveway and idle. For daily driving the biggest thing you can do to ensure a long life is continue to use quality synthetic motor oil as required by GM. I'd venture to say that even if you were under high boost and hammering the car and stopping quickly after that driving and shutting it off, you'd be less likely to see a premature failure than if you didn't give the engine time to warm up. Starting a cold car and going right into boost will kill the bearings way faster than shutting down hot if you're running synthetic. |
This thread reminds me of the same question that would come up on the Eclipse/Talon digests/forums many years ago. The 2.0 Mitsh turbo engine is very similar to the LNF in that it uses an oil/water cooled turbo. Many people initially put timers on their cars, but as the years and miles wore on, there were no greater number of failures on those that didn't use timers.
The sad fact is that if you live anywhere that road salt is used during the winter months, the body of the car will root out long before the turbo fails. My Talon has over 145k on the original turbo (no timer) and still boosts to 15psi with no shaft play, cracks or leaks. Blackbird hit it pretty much dead on: - "the biggest thing you can do to ensure a long life is continue to use quality synthetic motor oil .." If you're driving an old 80's turbo Buick, you should use a timer, but it's really not needed on the modern turbo cars with water cooling. Of course if you still want one on an SS and have the time and money....get one... it's your car and at least you'll have the piece of mind. |
Originally Posted by blackbird
(Post 3877263)
In normal operation while the car is running the turbo's center section bearings are mostly cooled by the motor oil. The water cooling is primarily to help cool the center section down in a more controlled manner after you shut the car off. There isn't a pump or anything physically moving the water, but there is a small amount of circulation of coolant through the center section of the turbo via a convection-like effect with the water boiling off, cooling down, and transferring heat out of the turbo's CHRA (center housing rotating assembly). Chrysler explained it very well in one of their SAE papers for the old 2.2/2.5 turbos.
|
Originally Posted by ICE_SS09
(Post 3879574)
Of course if you still want one on an SS and have the time and money....get one... it's your car and at least you'll have the piece of mind.
Originally Posted by peachpuff
(Post 3879696)
Interesting, but i still wouldn't rely on that since wet bearing turbo's still fail due to oil coking.
If the specific K04 used on the LNF ends up having bearing or seal reliability issues down the road there's not going to be too much you can do. The shaft size (and therefore bearing size) should be larger than some of the other small displacement engine, factory turbocharged vehicles with small frame turbos so I'm not too worried about the K04 falling apart. If you're worried about that possibility then I would keep your car stock and well maintained. If you crank up the boost with an aftermarket tune and dramatically overspeed past the max recommended shaft speeds you will also probably decrease service life. But oil coking with synthetic causing bearings to fail faster is a much lower likelihood. To summarize, the answer to the original question is that there's no special procedures or anything you should be doing for the turbo. Change the oil when the oil life monitor indicates, use 5w30 meeting GM's GM4718M standard (which will be one of the half dozen or so full synthetics tested to meeting that standard), use a good oil filter, and ensure you're using a good air filter. If you heavily modify the car and beat the heck out of it, expect that the turbo could have a shorter life but other components will also likely suffer from your severe use. Drive hard and have fun but don't abuse the car and you should be fine unless you happen to experience a manufacturing defect that takes out the turbo, in which case there wouldn't be anything you could have done to prevent it.
Originally Posted by ICE_SS09
(Post 3879574)
Of course if you still want one on an SS and have the time and money....get one... it's your car and at least you'll have the piece of mind.
Originally Posted by peachpuff
(Post 3879696)
Interesting, but i still wouldn't rely on that since wet bearing turbo's still fail due to oil coking.
If the specific K04 used on the LNF ends up having bearing or seal reliability issues down the road there's not going to be too much you can do. The shaft size (and therefore bearing size) should be larger than some of the other small displacement engine, factory turbocharged vehicles with small frame turbos so I'm not too worried about the K04 falling apart. If you're worried about that possibility then I would keep your car stock and well maintained. If you crank up the boost with an aftermarket tune and dramatically overspeed past the max recommended shaft speeds you will also probably decrease service life. But oil coking with synthetic causing bearings to fail faster is a much lower likelihood. To summarize, the answer to the original question is that there's no special procedures or anything you should be doing for the turbo. Change the oil when the oil life monitor indicates, use 5w30 meeting GM's GM4718M standard (which will be one of the half dozen or so full synthetics tested to meeting that standard), use a good oil filter, and ensure you're using a good air filter. If you heavily modify the car and beat the heck out of it, expect that the turbo could have a shorter life but other components will also likely suffer from your severe use. Drive hard and have fun but don't abuse the car and you should be fine unless you happen to experience a manufacturing defect that takes out the turbo, in which case there wouldn't be anything you could have done to prevent it. |
All times are GMT -4. The time now is 11:32 PM. |
© 2024 MH Sub I, LLC dba Internet Brands