Huafengdongli R4100D2 - Matched Clearances and Wear Limit of Main Parts

§ 5 Matched clearances and wear limit of main parts
No
Matched parts
Standard size
Matched
Wear limit
clearance
Crankshaft
main journal
neck
and
main
Shaft
«Il85
0
_
0
•
020
0.040 -0.1~
0.30
1
bearing
Hole
4»85 :~:~
2
Crankshaftr axile clearance
0.13 -0.28
0.4
Crankshaft & connecting rod journal neck
Shaft 4>72
0
_
o. 020
0.040 -0.095
0.30
3
and connecting bearing
Hole
4»72 :~:~5
Shai ~ 4J35 :~: ~
axile clearance
4
Connecting rod big end and crank
0.70
Hole 4)72 :~.~
0.200-0.400
haft ~10 :~::~
0.11-0.175
0.30
common
Hole
4'10
0
+
0
.
025
piston
haft
.105:~
0.11-0.175
0.30
5
Piston skirt and cylinder liner
Hole
4> 1 O~· 00-
haft .10 :~:=
steel 0.046 -0.091
0.15
inlaid
Hole
4»10
0
+
0
.
025
haft 4»105 :~:=
piston
0.046 -0.091
0.15
Hole .10~·025
Piston pin and connecting rod bushing
Shaft
.36 :~:=
0.025 -0.050
0.15
6
Hole .36 :~.~
7
Piston pin and piston pin seat hole
Shaft .36 :g::i
Hole .36
0
+
0
.
008
-0.002 -0.0011
0.05
8
The first compression ring and ring grave
0.065 --0.105 0.40
9
the second compression ring and ring gra
0.040 -0.080
0.30
10 oil ring and ring grave
0.045 ,... 1.080
0.25
Gauge .100 +0.008
0.40 -0.60 3.00
11
Gap of first compression ring in cylinder
Gauge .105 +0.008
0.40 :'0.60
3.00
Gap of second compression ring in cylin-
Gauge
.100 +0.000
0.30 -0.50 3.00
12
dar
Gauge .105 +0.000
0.30-0.50
3.00
Gauge .100 +0.008
0.20 -0.40 3.00
13
Gap of oil compression ring in cylinder
Gauge
41105 +0.008
0.20 -0.40 3.00
14
Camshaft journal neck and bUshing
Shaft .54 :~:=
0.062 -0. 125 0.25
Holet .54 ~~:::
15
Camshaft thrust plate and journal meek
Shaft clJ6
o
-
o
.
os
axile clearance
0.40
Holet 4X5
o
+
o
-m
0.05-0.15
Shaft «))30 :~:~
16
Valve push rod and push rod hole
0.040 -0.082 0.20
Holet .30
0
+
0
.
021