Kohler Lombardini LDW FOCS 502 Euro 2, Service Manual, Page: 45 / 98

45
49
50
51
6
1° 0,10÷0,25
1,0
2°
0,25÷0,40
3° 0,20÷0,40
1° L1 = 0,065÷0,105
2° L2 = 0,045÷0,090
3° L3 = 0,040÷0,080
Service Manual LDW FOCS 502 automotive _ cod. ED0053027270 - 3° ed_rev. 02
6.2.4 Dimensional check of sealing rings
1. Place a sealing ring in the cylinder and measure the
distance between the two tips using a thickness
gauge (
H ).
2. Repeat for all the sealing rings.
If the distance between the tips does not correspond
to the indicated values, replace the sealing ring
with an original spare (see “Dimensional table of
sealing rings”).
3 - Put the sealing rings on the piston in the order shown
in the figure.
Important
• Place the sealing rings with the markings facing up
towards the upper part of the piston (crown).
4. Using a thickness gauge, measure the clearance of
each sealing ring. If clearance does not correspond to
the values shown, replace the sealing rings with original
spares.
Important
• Sealing rings cannot be replaced separately.
• Protect the contact surfaces with lubricant oil, to
prevent them from rusting.
Sealing rings
OVERHAULS AND TUNING
Dimensional table of sealing rings
Sealing rings
distance between
tips
(mm)
Wear & tear limit
(mm)
Table of sealing rings clearance
Sealing rings
Clearance
(mm)