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.
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HOMESERVICE MANUALSFORD1990RANGER 4WD L4-140 2.3L SOHCREPAIR AND DIAGNOSISENGINE, COOLING AND EXHAUSTENGINETIMING COMPONENTSTIMING COVERSERVICE AND REPAIR
1990 Ford Ranger 4WD L4-140 2.3L SOHC
Timing Cover: Service and Repair
1990 Ford Ranger 4WD L4-140 2.3L SOHCSECTION Service and Repair
REMOVAL
1. Open hood and install fender covers.
2. Remove fan blade and four water pump pulley bolts.
3. Loosen alternator retaining bolts and remove drive belt from pulleys.
4. Drain cooling system and remove upper radiator hose.
5. Remove crankshaft pulley bolt and pulley.
6. Remove thermostat housing and gasket.
7. Loosen the power steering pump mounting bracket and position aside.
8. Remove the timing belt outer cover retaining bolt. Release the eight cover interlocking tabs. Remove cover.
INSTALLATION
Timing Belt Outer Cover:
1. Position cover and secure by snapping the eight interlocking tabs into place. Install the timing belt outer cover retaining bolts and tighten to 8-12 Nm (6-9 ft lb).
2. Install power steering pump mounting bracket.
3. Install thermostat housing and gasket and tighten bolts to 17-20 Nm (12-15 ft lb).
4. Install thermostat housing upper radiator hose to the radiator, fill the cooling system.
5. Install crankshaft pulley and retaining bolt.
6. Position alternator drive belt to respective pulleys. Adjust belt tension using Belt Tension Gauge Rotunda 021-00045 or equivalent and tighten retaining bolts.
7. Position water pump pulley and fan blade and install four retaining bolts.
8. Position Thermactor pump drive belt to pulley. Adjust tension using Belt Tension Gauge Rotunda 021-00045 or equivalent and tighten bolts.
9. Start engine and check for leaks.
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.