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.
1990 Ford Bronco II RWD, Standard, M5OD-R1FACTORY OEM SERVICE PROCEDURE
Static Timing
- Remove fast idle bracket and solenoid from injection pump. Using Pump Mounting Wrench (T86T-9000-C) loosen nuts holding injection pump to pump mounting adapter. Install Rotating Wrench (T83T-9000-C) on front of pump and rotate to align timing mark on pump mounting flange with timing mark on pump mounting adapter. See Fig 1 .
- Align to within .030". Remove rotating wrench and tighten nuts to specifications. Ensure timing marks are aligned. Install fast idle bracket and solenoid. Tighten mount bolts to 25 ft. lbs. (34 N.m).
Factory Service Tools
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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.
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