Repair Manual MAN-00190
THAR CRDe BS-IV MAY 2012/Rev 1
The repair methods given by the manufacturer in this document are based on the technical specifications at the time of release. The methods may be modified as a result of changes introduced by the
manufacturer in the production of the various component units and accessories from which the vehicles are manufactured. The reproduction, translation, transmission, in part or whole of the present
document, are prohibited without the prior written consent of Mahindra & Mahindra Ltd. The use of this document by any person other than the trained personnel, at the Authorized Service Centre of
Mahindra & Mahindra Ltd., will amount to unauthorized use and shall be liable for penalty/prosecution© 2012 Mahindra & Mahindra Ltd.
Connecting rod – Small end bush I.D
Gudgeon pin to connecting rod small end bush
0.047/0.025 0.05
Gudgeon pin to piston pin hole clearance Standard Service Limit
0.017/0.004 0.03
Piston weights grading
A
B
C
D
E
836-840 gm
841-845 gm
846-850 gm
851-855 gm
856-860 gm
Connecting rod grading as per weights
F
G
H
I
J
K
L
M
N
O
P
R
S
T
U
Recommended for service replacement
≥ 1260
≥1265
≥1270
≥1275
≥1280
≥1285
≥1290
≥1295
≥1300
≥1305
≥1310
≥1315
≥1320
≥1325 to 1330
M i.e. 1295 to 1300 gms
Connecting rod bend or twist 0.05 In 50mm length.
Connecting rod end play Standard Service Limit
0.1/0.3 0.5
Crankshaft end play Standard Service Limit
0.10/0.37 0.5
Camshaft end play Standard Service Limit
01/0.3 0.4
Liner projection from crankcase top surface 0.02/0.09
Y Axis- Perpendicular to cranks shaft
A- 25 mm
B- -86.6 mm
C- 113 mm
D- 163 mm
Roundness/Ovality- Difference in X & Y plane at
any pt.
Cylindricity/Taper -Difference in same plane x/y
at any point
φ ID 94.022/94.04
Roundness ≤ 0.05
Cylindricty ≤ 0.05
Crankcase top surface distortion Standard Service Limit
0.07 0.1
Cylinder head bottom face distortion Standard Service Limit
0.05
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