Volvo 164 1969 Service Manual page 118

Fig. 4-25. Dismantling the mainshafl,
II
DISMANTLING THE MAINSHAFT
1. Remove the lifting tool and then l st
speed gear
wheel , the needle bearing and the synchronizing
cone.
2. Remove the engagling s leeves and the f langes for
the syn chron izers. Remove the circl ips for t he syn-
chronizin g hub.
3. Fit too l SYO 2853 on to the ma in shaft. Place the
shaft in a press and support it with the too l as
shown in Fig. 4-24. Pre· s s off 2nd speed gear w hee l
and
l
st and 2nd speed synchronizing hu b.
4. Revert th e shaft and place it in the pres· s as shown
in Figl. 4-25. Press off 3rd spee d gear wheel and
4th speed synchronizing. hub .
INSPECTING
AHer the dismantling, clean all the parts in white .
spi rit and check for wear or other damage.
Check the g· e ar wheels particularly for cracks or
scoring on the teeth surfaces. Damaged or worn g.ear
wheel s should be replaced.
Check the synchronizing cones, also the other parts
of the synchronizing devices . Damaged or worn parts
should be replaced.
Check the ball bearings especially for scoring, or
cracks in the bearing races or on the ba·lls.
AS.s.EMBLI NG
ASSEMBLlNG THE MAINSHAFT
l. Assemble ht-2nd and 3rd-4th synchronizers. Fit
the snap ringt s correctly, see Fig. 4-26.
2. Place ring SYO 2852 in a press. Place on 3rd-4th
synchronizer, synchronizing cone, 3rd speed gear
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VOLVO
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Fig . 4-26. Assembling the synchron izin g
wheel and needle bearing. Make sure that the
synchronizing flange locates correctly in the
grooves in the synchronizing cone. Press the main-
shaft into th e synchronizing· hub as shown in Fig . .
4-27. When doing this turn the 3rd speed gear
wheel in order to check that this gear as weil as
the needle bearing fit correctly. Try out a circlip
which fills the groove we il and fit the circlip.
3. Place l st-2nd synchron izer, synchronizing cone,
2nd speed gear whee l and need le bearing on ring
SYO 2852. Make sure that the gear ring on the
engaging sleeve comes forwards and that the
flanges f it correctly in the g.rooves of the syn-
chron izing cone. Press in the mainshaft, see Fig.
4-27. When do in g th is, turn the 2nd speed gear
wheel to prevent it from fastening. Try out a cir-
Fig. 4-27. FiHing the synchronizing
VOLVO
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