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Home >> Ford >> 1996 >> Aerostar Van Window >> Repair and Diagnosis >> External Pages >> Different car >> Section 140 (Engine - 4.9L 6-CYL - VIN [Y]) >> Removal & Installation >> Timing Gears >> Checking Timing Gear Backlash

Checking Timing Gear Backlash

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 1996 Ford Pickup, 1996 Ford Econoline, 1996 Ford Club Wagon, 1996 Ford Cab & Chassis, and 1995 Ford Pickup. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove timing gear cover. See TIMING GEAR COVER . Attach a dial indicator to engine block, with sensing stylus on camshaft gear tooth.
  2. Using a dial indicator, measure gear backlash between camshaft gear and crankshaft gear at 6 equally spaced teeth. To obtain an accurate reading, hold gear firmly against block. Backlash should be .004-.010" (.10-.25 mm). If any of the 6 readings are not within specification, replace timing gears.
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