Infiniti G37 Coupe. Manual - part 1304

COUNTER SHAFT AND GEAR

TM-69

< DISASSEMBLY AND ASSEMBLY >

[6MT: FS6R31A]

C

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B

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• If the cam surface on baulk ring or contact surface on insert has

damage or excessive wear, replace with a new one.

• If spread spring is damaged, replace with a new one.

Baulk Ring Clearance for Double Cone Synchronizer (4th)

• Check the clearance between outer baulk ring (1), synchronizer

cone (2), and inner baulk ring (3) as follows.

CAUTION:

The clearances “A” and “B” are controlled with outer baulk
ring, synchronizer cone, and inner baulk ring as a set.
Replace them as a set if the clearances are outside the limit
value.

1.

Measure the clearance “A” at 2 points or more diagonally oppo-
site using a dial indicator (B) and puller (C) [SST: ST30031000
(J-22912-01)]. And then calculate mean value.

2.

Measure the clearance “B” at 2 points or more diagonally oppo-
site using a feeler gauge (A). And then calculate mean value.

Baulk Ring Clearance for Triple Cone Synchronizer (3rd)

SCIA0608J

JPDIC0305ZZ

1

: Inner baulk ring

2

: Synchronizer cone

Clearance “A”

Standard value

: Refer to 

TM-75, "Baulk Ring Clear-

ance"

.

Limit value

: Refer to 

TM-75, "Baulk Ring Clear-

ance"

.

JPDIC0306ZZ

1

: Outer baulk ring

2

: Synchronizer cone

Clearance “B”

Standard value

: Refer to 

TM-75, "Baulk Ring Clear-

ance"

.

Limit value

: Refer to 

TM-75, "Baulk Ring Clear-

ance"

.

JPDIC0307ZZ

TM-70

< DISASSEMBLY AND ASSEMBLY >

[6MT: FS6R31A]

COUNTER SHAFT AND GEAR

• Check the clearance between outer baulk ring (1), synchronizer

cone (2), and inner baulk ring (3) as follows.

CAUTION:

The clearances “A”, “B” and “C” are controlled with outer
baulk ring, synchronizer cone, and inner baulk ring as a set.
Replace them as a set if the clearances are outside the limit
value.

1.

Measure the clearance “A” at 2 points or more diagonally oppo-
site using a feeler gauge (B) when pressing outer baulk ring (1),
synchronizer cone (2), and inner baulk ring (3) toward gear taper
cone (C). And then calculate mean value.

2.

Measure the clearance “B” at 2 points or more diagonally oppo-
site using a feeler gauge (A). And then calculate mean value.

3.

Measure the clearance “C” at 2 points or more diagonally oppo-
site using a feeler gauge (A) when pressing outer baulk ring (1),
synchronizer cone (2), and inner baulk ring (3) toward gear taper
cone (B). And then calculate mean value.

BEARING

JPDIC0308ZZ

Clearance “A”

Standard value

: Refer to 

TM-75, "Baulk Ring Clear-

ance"

.

Limit value

: Refer to 

TM-75, "Baulk Ring Clear-

ance"

.

JPDIC0034ZZ

1

: Outer baulk ring

2

: Synchronizer cone

Clearance “B”

Standard value

: Refer to 

TM-75, "Baulk Ring Clear-

ance"

.

Limit value

: Refer to 

TM-75, "Baulk Ring Clear-

ance"

.

JPDIC0307ZZ

Clearance “C”

Standard value

: Refer to 

TM-75, "Baulk Ring Clear-

ance"

.

Limit value

: Refer to 

TM-75, "Baulk Ring Clear-

ance"

.

JPDIC0035ZZ

COUNTER SHAFT AND GEAR

TM-71

< DISASSEMBLY AND ASSEMBLY >

[6MT: FS6R31A]

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If the bearing does not rotate smoothly or the contact surface on ball
or race is damaged or peeled, replace with new ones.

SMT418A

TM-72

< DISASSEMBLY AND ASSEMBLY >

[6MT: FS6R31A]

REVERSE IDLER SHAFT AND GEAR

REVERSE IDLER SHAFT AND GEAR

Exploded View

INFOID:0000000001732894

Refer to 

TM-29, "Exploded View"

.

Disassembly

INFOID:0000000001732895

Remove reverse idler thrust washer, reverse idler gear and reverse idler needle bearing from reverse idler
shaft.

Assembly

INFOID:0000000001732896

Assembly in the reverse order of disassembly.

CAUTION:

Apply recommended grease to reverse idler needle bearing.

Inspection

INFOID:0000000001732897

REVERSE IDLER SHAFT AND GEAR

If the contact surface on reverse idler gear and reverse idler shaft has damage, peeling, abrasion, dent, bent,
or any other damage, replace the components.

BEARING

If the bearing does not rotate smoothly or the contact surface on roller or race is damaged or peeled, replace
with new ones.