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3RZ cooling problem - No flow

Discussion in '1st Gen. Tacomas' started by Hamelyak, Jun 20, 2012.

  1. Hamelyak

    Hamelyak [OP] New Member

    Joined:
    Jun 20, 2012
    Member:
    #80997
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    Gender:
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    First Name:
    Glenn
    Huntington Beach
    Vehicle:
    Tacoma Crawler
    Marlin Xfer Case Dana 300 Xfer case Longfield Axle Front 40" stickies
    I recently purchased an off road crawler that has a 2000 3RZ 2.7 liter engine as determined from the engine id number. My problem is overheating. Digging into it, I flushed and checked all flow paths in and out of the radiator from the engine in and out paths. The thermostat was removed which leads me to believe this always had a problem. Installed the thermostat, no change, overheats and doesn't appear to flow through to radiator, located in the rear of the chassis. The radiator is all aluminum with electric fan. Pulled the water pump, looks good, but replaced it anyway. No change, no flow and overheats. When I look at the water pump the impeller looks like it should be rotating counter clockwise but the engine turns it clockwise. Both pumps new and old have the same impeller pattern. Any ideas are appreciated.
     
  2. BAMFTACO

    BAMFTACO Pabst Blue Ribbon on ice

    Joined:
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    JUAN
    Malibu, CA
    Vehicle:
    Taco
    Lift- stock suspension with light racing uppers,tc coil bucket gusset, timbern bumps ,defined extended shackles with shackle brace. Armor- custom tube bumper, kr fab rear bumper,trail gear wiy 78 in sliders Performance-intake manifold spacer, vibrant resonator Random stuff- kenwood head unit,b&m t shifter, hood bug deflector.
    This is weird I was gunna say the thermostat but when you flushed it was the radiator fuild clear or did it have junk it the fluid
     
  3. 98tacoma27

    98tacoma27 :POOPCORN: Staff Member

    Joined:
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    Ben
    Beech Creek
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    05 Tundra SR5, 88 SR5 PU, 98 TRD OR (CRUSHED)
    5100's all on fours
    Was the cooling system ever bled?
     
  4. Hamelyak

    Hamelyak [OP] New Member

    Joined:
    Jun 20, 2012
    Member:
    #80997
    Messages:
    2
    Gender:
    Male
    First Name:
    Glenn
    Huntington Beach
    Vehicle:
    Tacoma Crawler
    Marlin Xfer Case Dana 300 Xfer case Longfield Axle Front 40" stickies
    Coolant was very clean and green. However the last leg of the radiator went from clear to rusty as it passes through metal pipes to the back of the vehicle. A little rusty water in the bottom of the radiator. Appears the guy before me just put in water, no antifreeze to top it off. With no flow it picked up rust in the metal pipe. As far as being bled, I squeezed hoses and made sure radiator was topped of with a recovery tank attached. Recovery tank would fill as engine overheated.
     
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