How to Rebuild a Super-Turbine 300 (ST-300) - A Pictoral Essay

Discussion in 'The "Juice Box"' started by Kirk, Jan 16, 2006.

  1. Kirk

    Kirk Well-Known Member

    With the Planetary Gear Set in place, the parking pawl with line up with one of the notches. That's how the (P)ark position works - it actually locks the whole gearset. Very effective.
     

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  2. Kirk

    Kirk Well-Known Member

    The Low Band Servo Piston is fitted into the outside of the case. Like the forward and reverse pistons, it too has a heavy return spring.
     

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  3. Kirk

    Kirk Well-Known Member

    Which requires another special tool - the Servo Compressor Tool. It consists of a big C-clamp and a short length of aluminum tube. I used 1" square tube here, but round would probably fit better. The tube is needed because as you compress the servo cover to install the snap ring, the piston pin potrudes inside the tube.
     

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  4. Kirk

    Kirk Well-Known Member

    Next, install the Low Band.
     

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  5. Kirk

    Kirk Well-Known Member

    The Low Band is retained by the Apply Pin on the right, and the adjustment block on the left. Once assembled, an external bolt is turned to take up the slack in the low band. This adjustment should be repeated every 24,000 miles to account for wear.
     

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  6. Kirk

    Kirk Well-Known Member

    Now find you Forward Clutch Assembly and fit it in place. The Sun Gear on the other end of the clutch engages the pinion gears inside the Planetary Gear Seat. The whole assembly fits within the Low Band.
     

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  7. Kirk

    Kirk Well-Known Member

    On to the Pump Body. Use Vaseline to 'glue' the thrust washer to the back of the pump body.
     

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  8. Kirk

    Kirk Well-Known Member

    Fit new oil-rings on the input shaft. They are made of cast-iron and very brittle - be careful installing them, flex only enough to get them in place.
     

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  9. Kirk

    Kirk Well-Known Member

    Apply ATF to the oil rings, and then slide the input shaft into the pump body.
     

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  10. Kirk

    Kirk Well-Known Member

    Now, fit the pump body back into the transmission case. Using new sealing washers under the bolt heads, torque it in place.
     

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  11. Kirk

    Kirk Well-Known Member

    Now to the back end. Fit the spring clip, then slide the speedometer gear into place and lock it on the clip.
     

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  12. Kirk

    Kirk Well-Known Member

    Now fit the tailshaft housing and bolt it in place. The speedometer gear is visible through the hole where the speedometer cable attaches. Install the speedometer cable mounting now.
     

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  13. Kirk

    Kirk Well-Known Member

    Getting close! Flip the transmission on its back to expose the oil passageways on the bottom.
     

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    Last edited: Jun 22, 2018
  14. Kirk

    Kirk Well-Known Member

    Install the valve body gasket, followed by the valve body plate.
     

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  15. Kirk

    Kirk Well-Known Member

    Find the Valve Body from before, and fit the Manual Control Valve and Link into place.
     

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  16. Kirk

    Kirk Well-Known Member

    Now fit the Manual Valve Link onto the shift lever, then install the Valve Body and bolt in place.
     

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  17. Kirk

    Kirk Well-Known Member

    Bolt the Oil Channel Support Plate in place. This 'dummy' plate covers up the passageways that were used for cruise control. More modern cars use an external cruise control.
     

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  18. Kirk

    Kirk Well-Known Member

    Now bolt the spring Detent into place. This is what gives you the 'notchy' feeling when you move the shift lever.
     

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  19. Kirk

    Kirk Well-Known Member

    Now fit the Oil Strainer with its new O-ring. This is not a true filter. It's simply a fine metal mesh that removes the bigger pieces (ie - anything with a part number :) ). It does not filter as well as modern paper elements. The downside is oil changes every 24,000 miles. The upside is this strainer can be cleaned and reused.

    Once the Oil Strainer is in place and the Detent (Kick-Down) wire is plugged in, you can install the oil pan and gasket.
     

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    Last edited: Jun 22, 2018
  20. Kirk

    Kirk Well-Known Member

    Fit the Modulator Valve into the back of the transmission case.
     

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