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.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSFORD1990RANGER 4WD L4-140 2.3L SOHCREPAIR AND DIAGNOSISSTARTING AND CHARGINGSTARTING SYSTEMSTARTER MOTORTESTING AND INSPECTIONDELCO-REMYFREE SPEED CHECK
1990 Ford Ranger 4WD L4-140 2.3L SOHC
Free Speed Check
1990 Ford Ranger 4WD L4-140 2.3L SOHCSECTION Free Speed Check
Fig. 12 Connections For Checking Free Speed Of Motor:
This test is performed during bench testing. With the circuit connected as shown in Fig. 12, use a tachometer to measure armature revolutions per minute. Failure of the motor to perform to specifications may be due to light or dry bearings, or high resistance connections. Starting motors do not require lubrication except during overhaul. At this time a couple drops of light oil may be applied to bearings.
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
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.