Porsche 944 User Manual

Page 54

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10

Engine, Crankcase

944

Tolerances and wear limits

Engine M 44.40/41

Cooling system

Coolant thermostat

Cooling system cap

Pressure valve

Vacuum valve

Oil circuit

Oil consumption

Oil pressure

at 80° C oil temperature:

at 5,000 rpm

Oil capacity

Difference of quantity between

dipstick marks

Valve timing

Camshaft bore

Camshaft

Camshaft

Bucket tappet bore

Bucket tappets

Camshaft

Opening temperature

opens at excess pressure

opens at vacuum

l/600 miles

excess pressure

6 l, from MY '88

Inner dia.

Dia.

Axial clearance

Inner dia.

dia.

Runout

For installing

(new)

Wear

limit

81-85° C

1.3...1.5

0.1 bar

approx. 1.5

approx. 4 bar

6.5 l

approx. 1.5 l

28 + 0.021

- 0

28 - 0.04

- 0.055

0.08...0.18

35 - 0.025

- 0.041

35 - 0.025

- 0.041

0.02

10 - 0102

Tolerances and wear limits

Printed in Germany - XXIV, 1991

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