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Rebuilt my 3rz!!! SHES A RUNNER

Discussion in '1st Gen. Tacomas (1995-2004)' started by 98_3RZ_NIC, Jan 5, 2025.

  1. Apr 27, 2025 at 6:37 PM
    #281
    t0p_d0g

    t0p_d0g 私はタコマが大好きです

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    Since we are going to way over think anti freeze here is you a very good read.

    In recent years, there have been many changes, given the new developments in the area of engine coolant. Several manufacturers are specifying their own type of antifreeze, and it can be confusing to the consumer as to which color or formulation of coolant is acceptable for their car. Some European coolants are based on a different pH scale from those made for American cars, because of the differences in plain water between the two continents. This adds to the consumer's confusion.

    All antifreeze falls under one of three basic types.

    Inorganic Acid Technology (IAT) This is the common green stuff original equipment manufacturers have used for over 70 years. Ethylene glycol is its base chemical, and there are silicate and phosphate additives that make it compatible with copper, brass, cast-iron and aluminum cooling system components. Manufacturers recommended that you change the green IAT antifreeze every 36,000 miles or three years. IAT coolant was used in GM vehicles until 1994. Chrysler used green IAT fluid until 2001, as did Ford (with the exception of some 1999 models that used OAT blue coolant which must be purchased from Ford).

    Organic Acid Technology (OAT) Commonly referred in GM vehicles by the brand name, Dex-Cool or to other manufacturers as propylene glycol. GM introduced Dex-Cool in 1995 as an "extended life" coolant, though most GM car owners and repair shops are finding that Dex-Cool is good for only about three to five years before it needs to be replaced. But because of the additives in the Dex-Cool orange antifreeze, you do not want to substitute the old reliable green coolant. Usually (but not always) dyed orange or yellow so you could tell the difference between OAT and IAT, this coolant has similar corrosion protection to the green stuff; however, it is designed to be slower acting, hence the extended-life moniker. It is made from a propylene glycol base, which makes it less poisonous than conventional IAT for children and pets. OAT, when spilled or lost due to a boil-over, is much less harmful to the environment. In addition to its use in 1996 model year and newer GM cars and trucks, OAT is also used in 1996 to 2001 Audi, Land Rover, Nissan, Mazda, Toyota, Honda, Kia, VW, Jaguar, Saab and Porsche. Manufacturers are now recommending your OAT coolant be changed every five years. OAT coolants are currently readily available from most auto parts stores.

    Hybrid Organic Acid Technology
    (HOAT)
    This coolant is usually dyed yellow but comes in other colors like green, pink, blue, red and orange, which leads to a lot of confusion. One way to know for sure if you are getting HOAT will be by the packaging. Manufacturers often refer to this antifreeze as "global" and will indicate on the bottle that it meets or exceeds the specification "G-05" for most European cars and G-11 or G-12 for Volkswagen and Audi. Hybrid antifreeze has added silicates for aluminum protection and is advertised as having a five-year change interval. Normally, HOAT coolants are specified for vehicles newer than 2002, specifically Mercedes, Volvo, Ford, VW, Audi, Chrysler, BMW and Saab.

    The use of OAT and HOAT coolants can extend the life of rubber coolant hoses, because they conduct less electrochemical degradation or ECD than the conventional green antifreeze. ECD is the process by which the motion of coolant and water through your engine creates an electrical charge similar to a galvanic battery. This electrical charge degrades both rubber and metal parts in the cooling system from the inside out. ECD can be attributed as the cause of many premature coolant system failures. Volkswagen, Audi and other European vehicles use antifreeze that can be blue, pink or red in color. Most of these are available under the brand name Pentosin in 1.5-liter bottles. The pink and red are specifically designed for alloy engines and both meet the required G-12 coolant specification. The blue is also for alloy-based engines, but with a different pH level, and is equivalent to the G-11 rating.

    You will find other types of antifreeze available for heavy-duty trucks. Both pink antifreeze (no, not the same stuff as used in the toilet in your camper at the lake house) and red are sold for truck use. These should not be confused with the pink or red HOAT coolants used on imported vehicles because they are designed specifically for trucks. These coolants will usually say "low-silicate" and "final charge" or "fleet charge" on them. They will do you no good in your passenger car because the lubrication and metal protection additives are separate in large truck cooling systems.

    So what should you use?
    Manufacturers will tell you to stick with what is in there. You can have the cooling system cleaned with a coolant filtration system. This is a very popular tool in repair shops today and will recycle your antifreeze. Component chemicals can be re-added to boost its boiling and freezing point and adjust the pH of the cooling system back to specifications. The most accurate tool for measuring OAT and HOAT potency is a refractometer, which is an expensive piece of equipment, so you should have the coolant checked by a service station before deciding whether it should be replaced or refurbished. If you are low on fluid or have a leak, a general rule of thumb is, green IAT is always replaced by green IAT coolant. Dex-Cool or an OAT product with equivalent specifications is always necessary to replace orange or yellow organic-based antifreeze. For the rainbow of colors of HOAT, your only substitute is the yellow or amber global antifreeze. Global coolant will not change the color of the stuff that is already in there. If original red, blue or pink antifreeze is desired, you must get these from a Pentosin supplier or your car dealer. Can you run organic coolant in an earlier vehicle? Yes and no. OAT will work if your radiator is aluminum and you flush your entire cooling system with water and completely refill with OAT, but there are some issues with the interaction between organic coolants and lead solder, so using OAT in a copper radiator is not recommended. In short, antifreeze these days is a buyer beware deal. Check your owner's manual for the correct fluid, and read the label on your replacement coolant carefully to ensure it meets with the required specifications.


    AND...
    Red and Pink antifreeze Toyota makes two antifreeze colors.

    Red is called "long life" antifreeze that's the color of blood.
    pn#
    [​IMG]
    $39 00272-1LLAC-01 Long Life Coolant - 1 Gallon (002721LLAC01)
    00272-1LLAC-01

    Concentrate; dilute with distilled water, 50/50

    Pink antifreeze is called "extended life" that comes in most new model Toyota and the Scions.
    pn# 00272-5LLC2
    pre-diluted with distilled or maybe it's de-mineralized water. Use as it is out of the jug. No further dilution
     
  2. Apr 27, 2025 at 7:32 PM
    #282
    98_3RZ_NIC

    98_3RZ_NIC [OP] Well-Known Member

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    Bilstein 5100’s with ome 881 coils on lowest setting, JBA upper control arms, LCE header, 31x10.5x15 falken wildpeaks.
    Idk if I’m over thinking it but I have a completely clean cooling system starting over so idk what to use. It says HOAT is suppose to be used for 2002 or newer vehicles. Should I use green or yellow then? I just want the radiator to last. I know everything else will be okay. I got new HPS radiator and heater hoses so those are new. And the block was acid dipped.
     
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  3. Apr 27, 2025 at 7:45 PM
    #283
    t0p_d0g

    t0p_d0g 私はタコマが大好きです

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    That radiator on the left with all the coolant leaking out obviously had a catastrophic failure. I don’t want to tell you wrong but if it was mine I would use the Super Tech and never look back. With that said it’s your engine and your $ so decide for yourself. What ever you decide like I have already said drain some out in 5K miles or so and see how it looks.
     
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  4. Apr 27, 2025 at 9:22 PM
    #284
    betterbuckleup

    betterbuckleup Well-Known Member

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    I swapped my system to use green coolant back in like 2019 and had no issues since. Green coolant is easier to find than the pink or red at parts stores, etc. Just make sure you flush it good in the process
     
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  5. Apr 28, 2025 at 5:12 AM
    #285
    98_3RZ_NIC

    98_3RZ_NIC [OP] Well-Known Member

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    Bilstein 5100’s with ome 881 coils on lowest setting, JBA upper control arms, LCE header, 31x10.5x15 falken wildpeaks.
    which one did you use?
     
  6. Apr 28, 2025 at 8:11 AM
    #286
    betterbuckleup

    betterbuckleup Well-Known Member

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    Not sure which specific one, but any green coolant typically meant for domestics that you get at auto parts stores works fine. I think I got the in-house O'Reilly's brand one
     
  7. Apr 28, 2025 at 2:44 PM
    #287
    98_3RZ_NIC

    98_3RZ_NIC [OP] Well-Known Member

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    Bilstein 5100’s with ome 881 coils on lowest setting, JBA upper control arms, LCE header, 31x10.5x15 falken wildpeaks.
    FIRST FIRE UP. Going good so far. Won’t let me post a video for some reason.
     
    Last edited: Apr 28, 2025 at 3:07 PM
    t0p_d0g likes this.
  8. Apr 28, 2025 at 4:14 PM
    #288
    98_3RZ_NIC

    98_3RZ_NIC [OP] Well-Known Member

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    Bilstein 5100’s with ome 881 coils on lowest setting, JBA upper control arms, LCE header, 31x10.5x15 falken wildpeaks.
  9. Apr 28, 2025 at 4:18 PM
    #289
    slater

    slater Well-Known Member

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    I know cell videos can make a brand new perfectly good engine sound like a big POS...
    Looks good but sounds really throaty..
    Exhaust leak maybe or just cuz you have the rpms up & exaggeration per the video sound....??
     
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  10. Apr 28, 2025 at 4:28 PM
    #290
    98_3RZ_NIC

    98_3RZ_NIC [OP] Well-Known Member

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    Bilstein 5100’s with ome 881 coils on lowest setting, JBA upper control arms, LCE header, 31x10.5x15 falken wildpeaks.
    yeah the idle was a bit high. No exhaust leak and yeah she sounds throaty with the hollowed out cat. It actually sounds really good in person. Quiet and throaty for a 4 banger.
     
  11. Apr 28, 2025 at 4:29 PM
    #291
    slater

    slater Well-Known Member

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    Got it, makes sense...
    Normal sound cuz hollowed out cat...
    Carry-on!
     
  12. Apr 28, 2025 at 4:33 PM
    #292
    98_3RZ_NIC

    98_3RZ_NIC [OP] Well-Known Member

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    Bilstein 5100’s with ome 881 coils on lowest setting, JBA upper control arms, LCE header, 31x10.5x15 falken wildpeaks.
    Will do. So far so good. It’s making a weird squeaky noise. I’m thinking it’s the driveline because I rebuilt it with all new u joints also. Yes they are greased. Maybe just needs to be broken in.
     
  13. Apr 28, 2025 at 4:37 PM
    #293
    slater

    slater Well-Known Member

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    Did you have the front wheels off the truck?
    Assuming you were using a hoist...
    Seen it many times if my speculation is correct...
    You lower the truck down really low so you can work on it & you tweak the front rotor backing plates so theyre kissing the backside of the rotor & makes noise...
    Lowered the truck so backing plates rested on the ground & slightly bent them.

    Figured ide throw that out there.
     
  14. Apr 28, 2025 at 4:47 PM
    #294
    98_3RZ_NIC

    98_3RZ_NIC [OP] Well-Known Member

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    Bilstein 5100’s with ome 881 coils on lowest setting, JBA upper control arms, LCE header, 31x10.5x15 falken wildpeaks.
    no didn’t lower or lift the truck at all and the wheels weren’t off. We just used a hoist.
     
  15. Apr 28, 2025 at 4:50 PM
    #295
    slater

    slater Well-Known Member

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    I meant lower the truck onto the backing plates & slightly bent them, not a suspension mod...
    But if you didnt take the wheels off, that aint it...
    Replacing u-joint sucks...
    Not hard but can easily fuck up & needle bearing pops out of place, I hope not.
    As you stated, maybe everything is just tight & needs to be driven.
     
  16. Apr 28, 2025 at 4:51 PM
    #296
    98_3RZ_NIC

    98_3RZ_NIC [OP] Well-Known Member

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    Bilstein 5100’s with ome 881 coils on lowest setting, JBA upper control arms, LCE header, 31x10.5x15 falken wildpeaks.
    yeah I messed one u joint up and had to buy another one. But yeah the double cardin sucks!
     
  17. Apr 28, 2025 at 5:07 PM
    #297
    t0p_d0g

    t0p_d0g 私はタコマが大好きです

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    Way to go sounds great to me I don’t hear anything abnormal.
     
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  18. Apr 28, 2025 at 5:08 PM
    #298
    98_3RZ_NIC

    98_3RZ_NIC [OP] Well-Known Member

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    im glad it sounds good to you guys! Sounds kinda weird on the phone but in person she’s smooth!
     
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  19. Apr 29, 2025 at 7:56 PM
    #299
    t0p_d0g

    t0p_d0g 私はタコマが大好きです

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    Have you taken it for a test drive?
     
  20. Apr 29, 2025 at 8:55 PM
    #300
    98_3RZ_NIC

    98_3RZ_NIC [OP] Well-Known Member

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    Bilstein 5100’s with ome 881 coils on lowest setting, JBA upper control arms, LCE header, 31x10.5x15 falken wildpeaks.
    yeah I did today. Only about 5 miles though. I have a squeaky u joint so I’m gonna replace it then I’ll be driving it daily. Driveline shakes a little bit at like 40 mph. I might have to take it off and get it balanced.
     
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