Reverse Idler Gear: Inspection

WARNING: This page is about a different variant/trim than selected.

Move the reverse shifter rod toward the reverse side. Check the clearance between the reverse idler gear and reverse coupling sleeve. If out of specification, select the appropriate reverse shifter fork and adjust.
Clearance (a):

0.50 - 0.85 mm (0.020 - 0.033 in)

Fig 1: Checking Clearance Between Reverse Idler Gear And Reverse Coupling Sleeve
Courtesy of SUBARU OF AMERICA, INC.
After installing a suitable reverse shifter fork, shift into neutral. Check the clearance between the reverse idler gear and reverse idler gear washer. If out of specification, select the appropriate reverse idler gear bushing and adjust.
NOTE: In clearance check, be sure to insert a thickness gauge vertically.

Clearance (a):

0.1 - 0.3 mm (0.004 - 0.012 in)

Fig 2: Checking Clearance Between Reverse Idler Gear And Reverse Coupling Sleeve
Courtesy of SUBARU OF AMERICA, INC.

Fig 3: Inserting Thickness Gauge Vertically
Courtesy of SUBARU OF AMERICA, INC.
Check the reverse idler gear and shaft for damage. Replace if it is damaged.