Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Hydraulic Motor: Reassembly
1998 Lexus SC 300SECTION Reassembly
- If installing oil seal, use hammer, Oil Seal Installer (SST 09951-00280) and Handle (SST 09951-07100). Tap oil seal into hydraulic motor housing until oil seal is .177-.217" (4.50-5.50 mm) below edge of hydraulic motor housing.
- Install plate washer and snap ring. Apply Dexron-II fluid to lip on oil seal. Install front thrust washer in hydraulic motor housing.
- Install drive and driven rotors in hydraulic motor housing with dot marking on rotors facing upward, toward hydraulic motor cover. Install drive shaft and rear thrust washer.
- Install NEW "O" ring in groove on hydraulic motor housing. Install hydraulic motor cover. Install and tighten bolts to specification. See TORQUE SPECIFICATIONS .
- Ensure drive shaft rotates smoothly. Temporarily install fan-to-hydraulic motor nut on end of drive shaft. Install INCH-lb. torque wrench on fan-to-hydraulic motor nut.
- Measure rotating torque required to rotate drive shaft. Rotating torque should be 2.6 INCH lbs. (.3 N.m). Remove fan-to-hydraulic motor nut.
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.