Ranger 2WD L4-153 2.5L SOHC VIN C SFI (1998)
Exhaust Manifold: Specifications
Tighten the six bolts and two studs in sequence in two stages.
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Stage 1: Tighten to 20-23 Nm (15-16 ft. lbs.).
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Stage 2: Tighten to 60-80 Nm (45-59 ft. lbs.).
Manifold-to-Exhaust Inlet Crossover Pipe Bolts: 34-46 Nm (22-33 ft. lbs.)