Porsche 944 - Manual (Page 56)

10
Engine, Crankcase 944
Tolerances and wear limits
Engine M 44.40/41
Con rod bush
Piston pin
Con rod bush/piston pin
Crankshaft and cylinder block
Crankshaft
measure at bearing 2, 3 or 4
Bearing 1 and 5 on prisms
Con rod journal
Con rod/crankshaft
Crankshaft beanng journal
Crankshafts/
crankshaft
Crankshaft bearing/
crankshaft
Cylinder bore
Bore for balance shaft bearing
sheIIs at crankcase or
balance shaft cover
Bore for bushing in
bearing housing
Balance shaft
Dia.
Dia.
Radial clearance
Runout
Dia.
Radial clearance
Axial clearance
Dia.
Radial clearance
Axial clearance
Out-of-round
Dia.
Dia.
Dia.
For installing
(new)
24 + 0.018
+ 0.028
24-0.004
0.018-0.032
0.046
51.971-51.990
0.027-0.069
0.080...0.240
69.971-69.990
0.028-0.070
0.060...0.192
0.010
34.000...34.019
34.000...34.019
30.975...30.991
Wear
limit
max. 0.06
0.16
0,40
0,020
10 - 0104 Tolerances and wear limits
Printed in Germany - XXIV, 1991