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Critical - Maintain your Turbo Actuators

Old 09-28-2016, 05:38 PM
  #16  
Carlo_Carrera
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Originally Posted by Richard.
All I can say its made a massive difference to my TT for circa $5
Thanks for the maintainance tip.
Old 09-28-2016, 09:29 PM
  #17  
Kevinmacd
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I use marvel mystery oil on the actuator hinge every so often. It migrates quit well, and eats corrosion and lubes at the same time.
Old 09-28-2016, 10:37 PM
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Is there any kind of grease or lubricant that will withstand 1000 deg C? Because that's how hot the turbine can get. I haven't heard of one. A problem with binding wastegates is caused by incorrect alignment or not actuating the turbos often enough. The first time you drive the car hard on boost for a while, anything you put on there to lubricate that hinge is going to become toast, literally. Drive the cars like they are meant to be driven, that's what Ferry said (or something like that ).

Dan
Old 09-29-2016, 12:54 AM
  #19  
993GT
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don't do anything to them except make sure you exercise them regularly...if 'lubricants' are helping, they are 'done'
Old 10-03-2016, 02:35 PM
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Richard.
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makes such a difference, saw 1.3 Bar today on the way back from the office
Old 10-03-2016, 07:02 PM
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1.3 is starting to push things. High boost is the other symptom of WG failure. The big difference with (un-controlled boosts is) that it could scatter your motor

Last edited by Third-Reef; 10-03-2016 at 08:37 PM.
Old 10-03-2016, 08:29 PM
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Kevinmacd
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Originally Posted by dprantl
Is there any kind of grease or lubricant that will withstand 1000 deg C? Because that's how hot the turbine can get. I haven't heard of one. A problem with binding wastegates is caused by incorrect alignment or not actuating the turbos often enough. The first time you drive the car hard on boost for a while, anything you put on there to lubricate that hinge is going to become toast, literally. Drive the cars like they are meant to be driven, that's what Ferry said (or something like that ).

Dan
No one disagrees that the lubricant becomes "toast" at high temp. If you lube it so often when cold and not running, marvel will eat the corrosion from salt roads etc when sitting. This will allow the natural effect of the wastegates when running to be more free. The key is to keep the corrosion from hampering the metal hinge.
Btw there are high temps lubes which are used in turbines. The lubes can exceed well over 1000 deg.
Old 10-03-2016, 10:54 PM
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Originally Posted by Richard.
makes such a difference, saw 1.3 Bar today on the way back from the office
Wait a second. If you're making 1.3 bar with your wastegates just now working, what were you making before? Were they stuck open? I would think at 1.3 bars, your wastegates are barely opening up at all. That's too high.
Old 10-03-2016, 11:35 PM
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Originally Posted by Kevinmacd
No one disagrees that the lubricant becomes "toast" at high temp. If you lube it so often when cold and not running, marvel will eat the corrosion from salt roads etc when sitting. This will allow the natural effect of the wastegates when running to be more free. The key is to keep the corrosion from hampering the metal hinge.
Btw there are high temps lubes which are used in turbines. The lubes can exceed well over 1000 deg.
Sure, it can keep corrosion at bay when cold and not running. But, are you sure that when it gets toast it will leave no residue? Residue that can interfere with the hinge's operation/movement?

Dan
Old 10-04-2016, 12:39 AM
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Originally Posted by 993GT
they are 'maintenance free' like any turbo car...just more susceptible to corrosion if winter(salt) driven due to their proximity to the road spray
best 'maintenance' for your wastegates is to drive the car hard and get those wastegate cycling very frequently
Enough of this granny driving!
Old 10-04-2016, 12:56 AM
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Originally Posted by peritus
Enough of this granny driving!
Old 10-04-2016, 03:33 PM
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Pretty much it doesnt leave any residue!
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Old 03-20-2022, 10:20 PM
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Just performed this service, 50k miles on the clock. Some points for anyone who reads this thread in the future (like I did)
- I used an anti-seize aerosol, high temperature (1,600 F; 870 C)
-- Loctite Silver Grade Anti Seize: https://www.tenaquip.com/product/loc...p-135541-ya275
- I was able to move both actuators by hand, slowly *pulling* them towards the rear of the car (there is strong tension, but I was able to slowly actuate them with my hand+thumb
- Access is fairly easy, I did not lift the car but did get a bit dirty on the floor

Spring punch-list items are nearly done!

Last edited by 996TS; 03-21-2022 at 01:53 PM.
Old 03-21-2022, 10:57 AM
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Reviving a 6 year old thread for a non-issue...
Old 03-21-2022, 12:35 PM
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Just like to read, eh...?
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