Page 17 of 135
21A-2
MANUAL GEARBOX
Manual gearbox oils: Draining - Filling
JB1 or JH3 or JR5
21A
DRAINING
aPosition the vehicle on a two-post lift (see Vehicle:
Towing and lifting) (02A, Lifting equipment).
aRemove the engine undertray.
aFit a oil recovery tray under the gearbox.
aRemove the drain plug (1) .
aLet the oil run into the oil recovery tray.
FILLING
aparts always to be replaced: mechanism hous-
ing drain plug seal.aRefit a new seal on the drain plug with the groove (2)
facing the plug.
aRefit the drain plug fitted with its new seal.
aRemove the filler cap (3) . Equipment required
oil recovery tray
Gearbox Capacity (l)
JB1 3.4
JH3 2.8
JR5 2.3
18749
113764
18749
Page 18 of 135
21A-3
MANUAL GEARBOX
Manual gearbox oils: Draining - Filling
JB1 or JH3 or JR5
21A
aFill with the recommended oil to the level (4) of the
opening (see 21A, Manual gearbox, Manual gear-
box oil: Specifications, page 21A-1) (Technical
Note 6012A, 04A, Lubricants).
aRefit the filler cap.
aWipe any oil run-off with a cloth.
aRemove the oil recovery tray.
aRefit the engine undertray.
92081
Page 19 of 135

21A-4
MANUAL GEARBOX
Manual gearbox: List and location of components
JB1
21A
101388
(1) Oil defl ector
(2) Output shaft bear ing
(3) Output shaft
(4) First idle gear
(5) Synchroniser r ing
(6) First-second synchroniser hub
(7) Synchroniser r ing
(8) Lock r ing
(9) Splined w asher
(10) Second idle gear
(11) Splined w asher
(12) Lock r ing
(13) Splined w asher
(14) Third idle gear
(15) Synchroniser r ing
(16) Splined w asher
(17) Lock r ing
(18) Third-four th synchroniser hub
(19) Synchroniser r ing
(20) Four th idle gear (21) Lock washer
(22) Bear ing retaining clips on mech-
anism housing
(23) Output shaft bear ing
(24) Fifth fi xed gear
(25) Output shaft bolt
(26) Input shaft bear ing
(27) Primar y shaft
(28) Bear ing retaining clips on mech-
anism housing
(29) Input shaft bear ing
(30) Lock washer
(31) Ring under fifth idle gear
(32) Fifth idle gear
(33) Synchroniser r ing
(34) Synchroniser spring
(35) Fifth gear synchroniser hub
(36) Synchroniser spring
(37) Friction cone
(38) Retaining washer
(39) Input shaft nut
Page 20 of 135
21A-5
MANUAL GEARBOX
Manual gearbox: List and location of components
JB1
21A
(40) Synchroniser r ing
(41) Retaining washer
(42) Input shaft nut
141102
(79) Clutch control fork
(80) Fork pivot ball joint
(81) Pivot gaiter
(82) Assembled reverse gear shaft
(83) Bear ing ring
(84) Assembled 1-2 fork shaft claw
(85) Assembled 3-4 fork shaft claw
(86) Reverse gear guide
(87) Assembled 5th gear fork shaft
(88) Lip seal
(89) Gaiter
(90) Tie-bar
(91) Gaiter
(92) Shaft lever and finger assembly
(93) Thickness washer
(94) 5th gear kickdown point
(95) Gaiter (96) Ball joint bearing shell
(97) Lock ring
(98) Retur n spring
Page 21 of 135
21A-6
MANUAL GEARBOX
Manual gearbox: List and location of components
JB1
21A
141103
(99) Suppor t bracket
(100) Gaiter
(101) Clutch protection component
(102) Clutch guide tube
(103) Clutch housing
(104) Oil collector
(105) Oil supply channel
(106) Filler plug
(107) Mechanism housing
(108) 5th gear cover seal
(109) Breather vent body
(110) Breather pipe
(111) Union
(112) Breather
(113) 5th gear cover
Page 22 of 135
21A-7
MANUAL GEARBOX
Manual gearbox: List and location of components
JB1
21A
141101
(114) O-r ing
(115) Lip seal
(116) Lock r ing
(117) Ball bear ing
(118) Lock r ing
(119) Lip seal
(120) Differential line tightening nut
(121) Adjusting shim
(122) Roller bearing
(123) Tachometer control ring
(124) Tachometer control pinion
(125) Tachometer pinion shaft
(126) Locking pin
(127) Ball bear ing
(128) Washer
(129) Spring washer
(130) Assembled differential mecha-
nism
(131) Hollow sun wheel (132) Thrust w asher
(133) Stop washer
Page 23 of 135
21A-8
MANUAL GEARBOX
Manual gearbox: List and location of components
JH1 or JH3 or JR5
21A
JH1 or JH3
101388
(1) Oil defl ector
(2) Bear ing
(3) Output shaft
(4) First gear pinion
(5) Synchromesh r ing
(6) First-second gear synchroniser
hub
(7) Spring
(8) Roller
(9) Lock r ing
(10) Splined w asher
(11) Second gear pinion
(12) Third gear pinion
(13) Third-four th gear synchroniser
hub
(14) Four th gear pinion
(15) Lock washer
(16) Retaining clips (17) Bear ing
(18) Fifth gear pinion
(19) Output shaft bolt
(20) Bear ing guide
(21) Primar y shaft
(22) Retaining clips
(23) Bear ing
(24) Lock washer
(25) Sprocket supporting ring
(26) Fifth gear pinion
(27) Synchromesh r ing
(28) Spring
(29) Synchroniser hub
(30) Spring
(31) Friction cone
(32) Synchromesh r ing
(33) Washer
(34) Input shaft nut
Page 24 of 135
21A-9
MANUAL GEARBOX
Manual gearbox: List and location of components
JH1 or JH3 or JR5
21A
JR5
101389
(1) Oil defl ector
(2) Bear ing
(3) Output shaft
(4) First gear pinion
(5) Synchromesh r ing
(6) Spring
(7) First-second gear synchroniser
hub
(8) Synchromesh r ing
(9) Sprocket supporting ring
(10) Second gear pinion
(11) Splined w asher
(12) Sprocket supporting ring
(13) Third gear pinion
(14) Synchromesh r ing
(15) Third-four th gear synchroniser
hub
(16) Synchromesh r ing (17) Sprocket supporting ring
(18) Four th gear pinion
(19) Adjustment washer
(20) Bear ing
(21) Fifth gear pinion
(22) Output shaft bolt
(23) Bear ing guide
(24) Primar y shaft
(25) Retaining clips
(26) Bear ing
(27) Lock washer
(28) Sprocket supporting ring
(29) Fifth gear pinion
(30) Synchromesh r ing
(31) Spring
(32) Synchroniser hub
(33) Spring
(34) Friction cone