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 MANUALSFORD2007FUSION SEL, 2.3 Z, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1251 (MANUAL TRANSAXLE)DISASSEMBLY AND ASSEMBLY OF SUBASSEMBLIESREVERSE IDLER GEARASSEMBLY
2007 Ford Fusion SEL, 2.3 Z, Standard
Reverse Idler Gear: Assembly
2007 Ford Fusion SEL, 2.3 Z, StandardSECTION Assembly
WARNING: This page is about a different car, the 2010 Mercury Milan and 2010 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.
- Install the reverse idler gear washer.
- Install the reverse idler gear.
- Install the reverse idler gear washer.
- Install the reverse synchronizer assembly.
- Reverse clutch hub inspection.
- Inspect the clutch hub sleeve and hub operation. Install new components as necessary.
- Inspect the gear teeth for damage, wear, and cracks. Install new components as necessary.
- Measure the clearance between the hub sleeve and shift forks. If it exceeds the maximum specification replace the hub sleeve and shift fork as a set.
REVERSE CLUTCH HUB SLEEVE AND SHIFT FORK CLEARANCE SPECIFICATION TABLEStandard Maximum 0.10-0.40 mm (0.003-0.015 in) 0.90 mm (0.035 in) - Reverse synchronizer ring inspection.
- Inspect the synchronizer teeth for damage, wear and cracks. Install new components as necessary.
- Inspect the tapered surface for wear or cracks. Install new components as necessary.
- Measure the clearance between the synchronizer ring and the flank surface on the gear. If it is less than minimum specification, replace the synchronizer ring.NOTE: Set the synchronizer ring squarely on the gear and measure around the circumference.
REVERSE SYNCHRONIZER RING CLEARANCE SPECIFICATION TABLEStandard Minimum 1.50 mm (0.059 in) 0.80 mm (0.031 in)
- Reverse clutch hub inspection.
- Install the friction damper onto the reverse idler gear.
- Install the reverse idler gear.
- Reverse idler gear inspection.
- Inspect the synchronizer cones for wear. Install new components as necessary.
- Inspect the gear teeth for damage, wear and cracks. Install new components as necessary.
- Inspect the synchronizer ring matching teeth for damage or wear. Install new components as necessary.
NOTE: The reverse idler gear is not serviced separately. A kit consisting of the output shaft reverse gear, the countershaft reverse gear and the reverse idler gear is available for service. All 3 gears in the kit must be installed. The replacement gears are not compatible with the existing gears. - Reverse idler gear inspection.
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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.