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About mwiener2

  • Birthday October 26

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  • Location
    Boulder, CO
  • Car
    2018 Volt
  • Interests
    My car
  • Occupation
    Performance Automotive Technician


  • User Title
    Trunk Monkey Chief

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  1. It's not a Subaru issue, it's a direct injection issue. I perform the cleaning service on all makes and models and they are all equally dirty. ALL direct injection engines have the same issue. They all need physical cleaning to remove the deposits. You're not gonna get any information from SOA other than to follow the recommended service procedures.... which don't cover physical cleaning of the valves. The factory PCV system directs all the emissions back into the engine to be burned. This causes carbon buildup on the backs of the valves. A Catch Can or Air Oil Separator tries to remove or catch these emissions before they are re-introduced into the engine and prevent the carbon buildup. The 2.4 DIT suffers from the same carbon buildup that the 2.0DIT and all other Direct Injection engines have.
  2. No. I googled, "Corrosion in a cooling system", and posted the top 6 results. Impressed you read through them, cause I didn't. You've never looked inside one. They're brown and covered in rust and corrosion. They probably have a fairly thick layer of gunk on the bottom. They have an sacrificial anode in them to make them last a little longer. A residential water heater only has a lifespan of 5 to 15 years. (More expensive models have thicker, better metal and take longer to rust out.) Oxygen or not, DO NOT USE THE CONDITONER IN YOUR CAR
  3. ALL Direct Injection motors from ALL manufactures suffer from carbon buildup on the valves. The exception being some motors that are direct and port injected. AOS helps a ton to keep the buildup down, but still plan on a walnut blast at 60k miles. I see significant buildup as early as 30k miles on some cars.
  4. Everything you posted involves oxygen. I can google for favorable results too. https://vfauto.com/what-causes-rust-in-a-cooling-system/ https://www.aa1car.com/library/cooling_system_electrolysis_corrosion.htm (This one is about what you're trying to prove, but the electrolysis reaction puts oxygen into the coolant which further propagates the corrosion.) I found YOU a book - https://dl.asminternational.org/handbooks/book/26/chapter-abstract/351944/Engine-Coolants-and-Coolant-System-Corrosion?redirectedFrom=fulltext https://www.evanscoolant.com/how-it-works/benefits/no-corrosion/ This one talks about removing oxygen by eliminating water from a cooling system. https://penray.com/resources/cooling-system-tech-facts/metal-corrosion/ Oxygen is the second listed primary source of corrosion. https://www.tat.net.au/pdfs/stories/Corrosion_issue23_Oct2011.pdf
  5. I said it happens slowly because there is very little oxygen. Not that it doesn't happen at all. For all intents and purposes related to cars, there needs to be oxygen present for the cooling system to corrode. The more you open the system and change fluid, the more oxygen is present and more corrosion will happen. In a perfectly sealed system, it will corrode until all the oxygen is used up then corrosion will stop. This is how it works in the real world of working on cars... Not in the Wikipedia searches you pulled out your rear. Use this. It works great!
  6. First sentence of what you linked to... "The term oxidation was first used to describe reactions in which metals react with oxygen in air to produce metal oxides." OXYGEN IS A REQUIRED CHEMICAL IN THE OXIDATION PROCESS. OXYGEN PRESENCE IS REQUIRED FOR OXIDATION TO OCCUR. I thought Doctors went to good schools for long periods of time...
  7. There should be a spring from the clutch release fork to a small bracket on the bellhousing that is part of the main ground wire. It's not going to cause a catastrophic failure if it's missing, but it could cause NVH and pre-mature throwout bearing failure. You also don't need the snout kit unless there is actual damage to the snout.
  8. DrD123, I really hope you're not a real doctor.... Definition of oxidation 1: the act or process of oxidizing 2: the state or result of being oxidized Definition of oxidize transitive verb 1: to combine with oxygen 2: to dehydrogenate especially by the action of oxygen oxidize an alcohol to an aldehyde You're telling me we don't need oxygen, but then you use oxygen in your examples of why we don't need it. It gets really annoying when people argue about stuff they don't really know about...
  9. The spring is to keep slack out of the fork and prevent the bearing from riding on the clutch all the time. Mostly to prevent NVH. You don't need a new spring if your current is still present.
  10. So you guys don't know what cross loading is... It's extremely rare for a bag to blow. The bags are made from the same material as semi truck air suspension bags. Your car isn't stressing the bags much. You're more likely to blow a tire, so we're all living onthe edge Cross loading is when all the weight of the vehicle is on diagonal wheels. This can cause the vehicle to teeter and loose control, sending you right off the road. This can't happen with height monitoring in addition to pressure. I'm an AirLift Performance dealer and installer. I've done this a few times....
  11. There is no extra load on the compressors with height monitoring. There are extra parts and install, but you get a much better, safer ride. When installed properly, the level sensors don't get damaged. (FYI, most modern vehicles, including Subaru's, have factory ride height sensors.) It's worth not dying.
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