Porsche 944 - Manual (Page 125)

944 Exhaust System
26
CHECKING TIGHTNESS OF EXHAUST SYSTEM FLANGES (16-VALVE ENGINES)
1. Check tightness of exhaust
flanges and check entire exhaust
system for leaks.
2. Check tightness of hex nuts on
exhaust manifold/cylinder head
flange.
3. Check tightness of all flange
connectians in exhaust system,
together with oxygen sensor and
exhaust extractian tube.
4. Check tightness af bolts in
primary muffler (catalytic
converter)/secondary muffler
flange. Check exhaust-system
hangers.
Tightening torques of nuts and
bolts:
M 8
M10
20 + 2 Nm (14 + 1.4 ftlb)
40 + 5 Nm (30 + 3.6 ftlb)
Printed in Germany - XIII, 1987 Checking Tightness of Exhaust
System Flanges
26 - 101