Engine - Hyundai Sonata 1991 Shop Manual

PISTON AND CONNECTING ROD
~.
Tapered
~type
~B""'_
4. Using piston ring expander, install No.2 piston ring.
5. Install No.1 piston ring.
I
6. Apply engine oil around piston and piston rings. ~~~~l
No.1
)1
~
20Y133
7. Position each piston ring end gap as for apart from
neighboring gaps as possible. Make sure that gaps are not
positioned in thrust and pin directions.
8. Hold piston rings firmly in a piston ring compressor as they
are inserted into cylinder.
Gap of lower
~
side rail
V
Engine front
!l
+
~
NO.2 ring gap
~
and spacer
~
expander gap
~
NO.1 ring gap
~
IJ
.h
Gap or upper
~
side rail
20Y134
9. Make sure that front mark of piston and front mark (identi-
fication mark) of connecting rod are directed toward front of
engine.
10. When connecting rod cap is installed, make sure that cylin-
der numbers put on rod and cap at disassembly match.
11. When new connecting rod is installed, make sure that
notches for holding bearing in place are on same side.
12. Tighten the connecting rod cap nuts.
Tightening torque
Connecting rod cap nuts , .
49-51 Nm (500-520 kg.cm, 36-38 Ib.ft)
20Y135
13. Check bearing clearance as follows:
1) Remove oil and dirt from bearings and journals.
2) Cut plastigauge to same length as width of bearing and
place it in parallel with journal, off oil holes.
3) Install bearing and cap and tighten them to specified
torque. During this operation, do NOT turn cranksha.ft.
4) Remove caps, measure width of plastigauge at the wid-
est part by using a scale printed on plastigauge bag.
20-59