1987 Ford Bronco II 4WD V6-177 2.9LFACTORY OEM SERVICE PROCEDURE

Timing Chain Guide

Camshaft Sprocket Bolt 23-38 Nm (19-28 ft lb)
Camshaft Thrust Plate 17-21 Nm (13-16 ft lb)
Connecting Rod Nut 26-33 Nm (19-24 ft lb)
Crankshaft Pulley (Cast) to Crankshaft 115-130 Nm (85-96 ft lb)
Cylinder Head Bolt (Tighten to Yield) In Sequence
Step 1 30 Nm (22 ft lb)
Step 2 70-75 Nm (51-55 ft lb)
Step 3 Turn 90 Degrees
Flywheel to Crankshaft 64-70 Nm (47-52 ft lb)
Front Cover to Cylinder Block 17-20 Nm (13-16 ft lb)
Intake Manifold (Bolt/Nut) In Sequence
Step 1 Hand Start and Snug Nuts at Positions 3 and 4
Step 2 4-8 Nm (3-6 ft lb)
Step 3 8-15 Nm (6-11 ft lb)
Step 4 15-21 Nm (11-15 ft lb)
Step 5 21-25 (15-18 ft lb) [1]
Upper Intake (Plenum)
1. Tighten all bolts (6) to 10 Nm (7 ft lb).
2. Then tighten all bolts to 21-25 Nm (15-18 ft lb).
Throttle Body to Upper Intake 9-13 Nm (6-10 ft lb)
Intake Manifold Stud to Cylinder Block 14-16 Nm (10-12 ft lb)
Main Bearing Cap Bolt 88-102 Nm (65-75 ft lb)
Timing Pointer to Front Cover 7-9 Nm (5-7 ft lb)
Oil Pump Pick Up Tube to Pump 9-13 Nm (6-10 ft lb)
Oil Pickup Tube Support to Main Cap (Nut) 17-21 Nm (12-15 ft lb)
Oil Pump Case 9-13 Nm (6-10 ft lb)
Oil Pan to Cylinder Block In Sequence 7-10 Nm (5-8 ft lb)
Oil Filter Adaptor to Cylinder Block (Bolt) 20-40 Nm (15-30 ft lb)
Oil Pan Drain Plug 21-28 Nm (15-21 ft lb)
Oil Filter [2]
Rocker Cover to Cylinder Head 4-7 Nm (3-5 ft lb)
Rocker Arm Shaft Support Bolt 59-67 Nm (43-50 ft lb)
Water Pump to Front Cover 9-12 Nm (7-9 ft lb)
Water Outlet Connection 9-12 Nm (6-9 ft lb)
Water Jacket Drain Plug 20-25 Nm (14-18 ft lb)
Spark Plug 25-38 Nm (18-28 ft lb)
Alternator Mounting Bracket to Cylinder Block 40-55 Nm (29-40 ft lb)
Alternator Mounting Bracket to Cylinder Head
M-8(2) 20-30 Nm (14-22 ft lb)
M-10 40-55 Nm (29-40 ft lb)
Alternator Pivot Bolt 61-82 Nm (45-61 ft lb)
Alternator Adjustment Arm to Front Cover 70-95 Nm (60-70 ft lb)
Alternator Adjustment Arm to Alternator 70-95 Nm (60-70 ft lb)
Air Conditioning Pulley to Crank Pulley 26-38 Nm (19-28 ft lb)
Fan to Fan Clutch 8-11 Nm (6-8 ft lb)
Fan Clutch to Water Pump Hub 21-34 Nm (15-25 ft lb)
Exhaust Manifold to Cylinder Head (Bolt) 27-40 Nm (20-30 ft lb)
Exhaust Manifold to Cylinder Head (Stud) 27-40 Nm (20-30 ft lb)
Heat Shield Manifold Stud 5-7 Nm (50-65 in lb)
Knock Sensor Assembly to Block 40-54 Nm (30-40 ft lb)
EGR 3-10 Nm (2-7 ft lb)
EGR Valve to Plenum 21-25 Nm (15-18 ft lb)
Idle Air Bypass Valve to Plenum 9-13 Nm (7-10 ft lb)
Fuel Rail to Intake Manifold 9-13 Nm (7-10 ft lb)
Fuel Pressure Regulator to Fuel Rail 9-13 Nm (7-10 ft lb)
Timing Chain Guide to Block 9-13 Nm (7-10 ft lb)
Timing Chain Tensioner to Block 9-13 Nm (7-10 ft lb)
Oil Level Indicator Tube to Manifold Nut Stud 40-55 Nm (30-40 ft lb)
Pulley/Water Pump 20-30 Nm (14-22 ft lb)
[1] Repeat After Warm Up.
[2] One-half turn after gasket contacts sealing surface with oiled gasket.

Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.

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