Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Subaru Impreza 2001-2002.2004-2007 Approved Subaru Impreza 2004 WRX STi 04. TRANSMISSION 04. MANUAL TRANSMISSION AND DIFFERENTIAL (5MT) 19. Reverse Idler Gear
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REVERSE IDLER GEAR
MANUAL TRANSMISSION AND DIFFERENTIAL
19.Reverse Idler Gear B: INSTALLATION
1) Install the reverse shifter lever, reverse idler
A: REMOVAL gear and reverse idler gear shaft, and secure with
1) Remove the manual transmission assembly straight pin.
from vehicle. NOTE:
2) Remove the back-up light switch and neutral po- Be sure to install the reverse idler shaft from rear
sition switch.
3) Remove the transfer case with extension case
assembly. (A)
4) Remove the transmission case.
5) Remove the drive pinion shaft assembly. (C)
6) Remove the main shaft assembly.
MT-00304
(A) Reverse shifter lever
7) Remove the differential assembly. (B) Reverse idler gear
8) Remove the shifter forks and rods. (D) Straight pin
9) Pull out the straight pin, and remove the idler
2) Inspect and adjust the clearance between re-
gear shaft, reverse idler gear and washer.
verse idler gear and transmission case wall.
and
3) Install the shifter forks and rods.
4) Install the differential assembly.
(D) 5) Install the main shaft assembly.
6) Install the drive pinion shaft assembly.
(B) Idler gear shaft
7) Install the transmission case.
(D) Washer
8) Install the transfer case with extension case as-
10) Remove the reverse shifter lever. sembly.
9) Install the back-up light switch and neutral posi-
tion switch.
10) Install the manual transmission assembly to ve-
hicle.
5MT-77
REVERSE IDLER GEAR
MANUAL TRANSMISSION AND DIFFERENTIAL
C: INSPECTION D: ADJUSTMENT
1) Move the reverse shifter rod toward the reverse 1) Select the appropriate reverse shifter lever from
side. Inspect the clearance between reverse idler the table below, and adjust until the gap between
gear and transmission case wall. the reverse idler gear and transmission case wall is
If out of specification, select the appropriate re- within specification.
verse shifter lever and adjust.
Clearance A:
Clearance A: 6.0 -- 7.5 mm (0.236 -- 0.295 in)
6.0 -- 7.5 mm (0.236 -- 0.295 in)
A
A
MT-00305
MT-00305
Reverse shifter lever
2) After installing a suitable reverse shifter lever,
Part No. Mark Remarks
shift into neutral. Inspect the clearance between re-
verse idler gear and transmission case wall. 32820AA070 7 Further from case wall
If out of specification, select the appropriate washer 32820AA080 8 Standard
and adjust. 32820AA090 9 Closer to case wall
Clearance: 2) Select the appropriate washer from the table be-
0 -- 0.5 mm (0 -- 0.020 in) low, and adjust until the gap between the reverse
idler gear and transmission case wall is within
specification.
Clearance:
0 -- 0.5 mm (0 -- 0.020 in)
MT-00306
3) Check the reverse idler gear and shaft for dam-
age. Replace if damaged.
MT-00306
Washer
Part No. Thickness mm (in)
803020151 0.4 (0.016)
803020152 1.1 (0.043)
803020153 1.5 (0.059)
803020154 1.9 (0.075)
803020155 2.3 (0.091)
5MT-78
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