Saab 95 1967, Руководство по обслуживанию

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NOTE
The arrows on the center and front main bearing
caps must point to the front.
4.
Tighten the front and rear bearing ca
DS to a tor ue
of 98 Nm (72 ft.Ib., 10.0 kpm). Finger-tighten She
bolts for the center bearing cap.
NOTE
Do not confuse the screws for cylinder heads and
main bearings. These have the same diameter, but
the screws for the main bearings are approx. 0.4
in. (10 mm) longer than those for the cylinder
heads.
As from engine No. 74900, the cylinder head screws
have been lengthened approx. 0.4 in. (10 mm) and
consequently there is no danger of confusion.
5.
Press the crankshaft forwards and pry the axial (cen-
ter) bearing cap to the rear. Then, tighten the cap
bolts to a torque of 98 Nm (72 ft.Ib., 10 kpm)
while holding the crankshaft forward. (This is nec-
essary to make both halves of the bearing insert
equally ready ‘0 bear “WW-i REAR CRANKSHAFT SEAL ASSEMBLY
Tool 78 62 170
7. Fit new connecting rod bolts.
NOTE
Fit new connecting rod bolts every time the crank-
shaft has been disassembled.
8.
Coat the pistons, rings and cylinder bores with en-
gine oil. Place the piston rings in the following man-
ner:
The oil control ring center spring gap 180° from
the mark on the top of the piston; the oil segments
with the gaps staggered 1 in. (25 mm) on either
side of the center spring gap; the lower compres-
sion ring gap 150° from one side of the center
spring gap and the upper compression ring gap
150° from the other side of the center spring gap.
Installation of the piston rings as above is essential
for optimum sealing and low oil consumption.
fealegif;gngi::eoiif ia:tc:)::: main bearing to a diS- 569111em ri"9 Compression ring
h rear /‘ '
tance of 0.36—0.38 in. (9.2—9.7 mm) from t 6
plane of the engine block.
in. (25 mm)
The mark faces
forward
on control ring.
center 50' "‘9
in. (25 mm) '
Compression ring
S 2921
FITTING PISTON RING GAP
AA A. 210—5