Dacia Pick-Up 1304/1305/1307. Manual — part 21
10
10 - 50
ENGINE AND LOWER ENGINE UNITS
Take out the crankshaft pinion by means of
the MOT 49 device.
Dismount the engine flywhhe.
Check the marking of the connecting rods:
- no.1 towards the flywheel and opposite
to the camshaft.
Unscrew the connecting rod caps nuts.
Dismount the connecting rods cas and the half
bushings and place them in order.
Dismount the crankshaft.
Dismount the connecting bearing and the half
bushings and place them in order.
Dismount the crankshaft.
DISMOUNTING - MOUNTING
10
10 - 51
ENGINE AND LOWER ENGINE UNITS
Remove the half bushings from the
connecting rod and from the block and put them
in order.
Dismount the washer thrusts for the axial
clearance adjustment.
Remove the annular oil seal from the bearing.
R
EMOUNTING
Wash and air blow the new crankshaft; check the existence of the lubricatin holes in the shaft.
Clean the contact surface of the gasket to the block and oil sump.
Mount the half bushings on the connecting rods.
Mount the half bushings of the bearings in the blck ( the half bushings with lubricating holes).
NOTE:
The half bushings of bearings 1 and 3 on one hand and the ones for bearings 2 , 4
and 5 on the other hand,are identical.
In case crankshaft is replaced, it is obligatory to change also the connecting rod
bearings, crankshaft bearings and the distribution and bearing annular oil seals.
Mount the crankshaft pinion on the shaft.
Lubricate with fresh oil the followings:
- the bushing of the bearings;
- the bearings of the crankshaft;
Mount the crankshaft.
Lubricate with oil the axial half bushings and
mount them in their respective seats.
DISMOUNTING – MOUNTING
10
10 - 52
ENGINE AND LOWER ENGINE UNITS
Mount the half bushings on the bearing
heads ( the half bushings for caps do not have
lubricating holes).
Lubricate the half bushings with fresh oil and
mount the bearing caps at their place
according to the marking.
It is obligatory to degrease the contact
surfaces of the no.1 bearing cap and then to apply
a layer of LOCTITE 518 in order to ensure the
sealing.
Tighten the attachment screws of the caps at
5,5 – 6,5 daNm moment using.
Check the free rotation of the crankshaft.
Mount a support with magnetic bottom and
by means of a comparator check the axial clear-
ance of the crankshaft which must be within 0,05
and 0,23 mm.
If the clearance is not as required,replace the
axial half bushings.
The axial half bushings have various thickneses
such as: 2,28 ; 2,38 ; 2,43 mm.
Mount the bearing annular oil seal on the
MOT 259-01 chuck.
Lubricate the outside of the annular oil seal
with oil and mount it in its seat by slightly tapping
the head of the chuck until the latter comes into
contact with the crankshaft.
DISMOUNTING - MOUNTING
10
10 - 53
ENGINE AND LOWER ENGINE UNITS
NOTE:
In case the old crankshaft is to be mounted, displace the annular oil seal position by
inserting a 2 mm thick washer between the chuck and the crankshaft end so that the
annular oil seal does not work in its initial position.
Mount the flywheel using new screws.Before
mounting lubricate with FIXAMED M 28 the
screws.
Tighten the screws at a 5 daNm moment
using.
Mount the support with magnetic bottom and
by means of a comparator check the axial runout
of the flywheel. The maximum admitted runout:
0,06 mm.
Mount the half bushings in the connecting rods
caps.
Lubricate the half bushings and the bearings
with oil and mount the connecting rod
caps.Tighten the screws at a 4.5 daNm
moment using.
Check the free rotation of the mobile
assembly.
DISMOUNTING – MOUNTING
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