Reverse Idler Gear: Inspection

WARNING: This page is about a different car, the 2020 Subaru Impreza. However, it is still accessible from the selected car via links, so may be relevant.

Move the reverse shifter rod toward the reverse side. Check the clearance A between the reverse idler gear and the transmission case wall surfaces.
If the value is out of specification, select the appropriate reverse shifter lever and adjust. Refer to MANUAL TRANSMISSION AND DIFFERENTIAL (5MT)>REVERSE IDLER GEAR>ADJUSTMENT .

Specification:

6.0 - 7.5 mm (0.236 - 0.295 in)

Courtesy of SUBARU OF AMERICA, INC.
After installing a suitable reverse shifter lever, shift into neutral. Check the clearance between the reverse idler gear and the transmission case wall surfaces.
If the value is out of specification, select the appropriate adjusting washer and adjust. Refer to MANUAL TRANSMISSION AND DIFFERENTIAL (5MT)>REVERSE IDLER GEAR>ADJUSTMENT .

Specification:

0 - 0.5 mm (0 - 0.020 in)

Courtesy of SUBARU OF AMERICA, INC.
Check the reverse idler gear and shaft for damage. Replace if it is damaged.