Porsche 944 Workshop Manual page 56

10
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
10 - 0104
Engine, Crankcase
Dia.
Dia.
Radial clearance
Runout
Dia.
Radial clearance
Axial clearance
Dia.
Radial clearance
Axial clearance
Out-of-round
Dia.
Dia.
Dia.
For installing Wear
(new) limit
24 + 0.018
+ 0.028
24-0.004
0.018-0.032
0.046 max. 0.06
51.971-51.990
0.027-0.069
0.080...0.240
69.971-69.990
0.028-0.070 0.16
0.060...0.192 0,40
0.010 0,020
34.000...34.019
34.000...34.019
30.975...30.991
Tolerances and wear limits
Printed in Germany - XXIV, 1991
944