Table of Contents
Advertisement
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
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").
Dimensional table of sealing rings
distance between
Sealing rings
Sealing rings
tips (mm)
1°
0,10÷0,25
2°
0,25÷0,40
3°
0,20÷0,40
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.
Table of sealing rings clearance
Sealing rings
1°
2°
3°
Important
• Sealing rings cannot be replaced separately.
• Protect the contact surfaces with lubricant oil, to
prevent them from rusting.
Service Manual LDW FOCS 502 automotive _ cod. ED0053027270 - 3° ed_rev. 02
the
sealing
rings.
Wear & tear limit
(mm)
1,0
Clearance (mm)
L1 = 0,065÷0,105
L2 = 0,045÷0,090
L3 = 0,040÷0,080
OVERHAULS AND TUNING
49
50
51
6
45
Advertisement
Table of Contents
