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21.2 Big-end cap and connecting rod
identification numbers
20 Oil filter - renewal
See Chapter 1, Section 8.
21 Pistons and connecting rods
- removal
1 Remove the sump and cylinder head.
2 Check the big-end caps for identification
marks and if necessary use a centre-punch to
identify the caps and connecting rods (see
illustration).
3 Turn the crankshaft so that No 1 crankpin is
at its lowest point, then unscrew the nuts and
tap off the cap. Keep the bearing shells in the
cap and connecting rod.
22.6 Checking crankshaft endfloat
22.8a Removing the crankshaft
21.4 Piston, connecting rod, cap and
bearing shells
4 Using the handle of a hammer, push the
piston and connecting rod up the bore and
withdraw from the top of the cylinder block.
Loosely refit the cap to the connecting rod
(see illustration).
5 Repeat the procedure in paragraphs 3 and 4
on the No 4 piston and connecting rod, then
turn the crankshaft through half a turn and
repeat the procedure on Nos 2 and 3 pistons
and connecting rods.
22 Crankshaft and main
bearings - removal
1 With the engine removed from the vehicle,
remove the pistons and connecting rods as
described in the previous Section. (In fact it is
not necessary to push the pistons out of the
bores if no work is to be done on them.)
22.7 Removing the rear main bearing cap
22.8b Removing a thrustwasher from the
centre main bearing
SOHC engines 2A•11
22.5 Main bearing cap identification marks
The arrow points to the front of the engine
2 Remove the timing belt and crankshaft
sprocket, and the flywheel or driveplate. Also
remove the auxiliary shaft sprocket.
3 Unbolt the crankshaft front oil seal housing
and auxiliary shaft front cover and remove the
gasket.
4 Remove the oil pump and strainer.
5 Check
the
main
bearing
identification marks and if necessary use a
centre-punch
to
identify
illustration).
6 Before removing the crankshaft check that
the endfloat is within the specified limits by
inserting a feeler blade between the centre
crankshaft web and the thrustwashers (see
illustration). This will indicate whether new
thrustwashers are required or not.
7 Unscrew the bolts and tap off the main
bearing caps complete with bearing shells
(see illustration). If the thrustwashers are to
be re-used identify them for location.
8 Lift the crankshaft from the crankcase and
remove the rear oil seal. Remove the
remaining thrustwashers (see illustrations).
9 Extract the bearing shells keeping them
identified for location (see illustration).
23 Engine mountings - renewal
1 Unscrew the two nuts which secure the
engine bearers to the tops of the mountings.
Recover the washers (see illustration).
2 Raise and support the front of the vehicle.
Remove the two nuts which secure the
22.9 Removing the centre main bearing
shell
caps
for
them
(see
2A
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