Mitsubishi 4g63, Руководство по обслуживанию

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PISTON AND CONNECTING ROD
ENGINE OVERHAUL <4G63-Turbo> 11D-58
>>B<< OIL RING INSTALLATION
1. Fit the oil ring spacer into the piston ring groove.
Install the upper side rail, then the lower side rail.
NOTE: Locate the side rail and spacer end gaps
as shown in the drawing.
NOTE: New spacers and side rails are an
identified by color marks as follows:
CAUTION
Use of ring expander to expand the side rail end
gap can break the side rail, unlike other piston
rings.
2. To install each side rail, first fit one end of the rail
into the piston groove, then press the remaining
portion progressively into position by finger as
shown in the drawing.
3. Make sure that the installed side rails move
smoothly in either direction.
>>C<< PISTON RING NO. 2/PISTON RING
NO. 1 INSTALLATION
Using a piston ring expander, install the piston rings
with their identification marks facing up (toward the
piston crown).
Identification marks:
No.1 ring: 1R
No.2 ring: 2R
NOTE: Each of the available piston rings has a size
mark as follows:
Size Color mark
Standard No mark
0.50 mm oversize Red
1.00 mm oversize Yellow
AK202879
Upper
side
rail
end gap
Lower
side
rail
end gap
Spacer end gap
AB
AK202785
Side rail end
AB
Size Size mark
Standard No. 1 ring No mark (white paint on
periphery)
No. 2 ring No mark
0.50 mm oversize 50
1.00 mm oversize 100
AK202786
Piston ring
expander
AC
AK202807
No. 2
AB
No. 1
Size marks
Identification mark