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 DIAGNOSISSPECIFICATIONSMECHANICAL SPECIFICATIONSENGINELIFTER / LASH ADJUSTER, VALVE
1990 Ford Ranger 4WD L4-140 2.3L SOHC
Lifter / Lash Adjuster, Valve
1990 Ford Ranger 4WD L4-140 2.3L SOHCSECTION Lifter / Lash Adjuster, Valve
Standard Diameter 0.3422-0.8427 inch
Clearance-to-Bore 0.0007-0.0027 inch
Service Limit 0.005 inch (Max)
Allowable Collapsed Tappet Gap 0.035-0.055 inch @ Cam
Desired Collapsed Tappet Gap 0.040-0.050 inch @ Cam
Valve Tappet Hydraulic Leakdown Rate:
2-8 seconds to leakdown 3.18 mm (1/8 inch) of travel with 22.68 Kg (50 lb) load leakdown fluid in lash adjuster.
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.