Porsche 1972 911 Workshop Manual page 66

C o o l i n g , e x h a u s t a n d e m i s s i o n c o n t r o l s y s t e m s
Description
EGR filter
Nut (copper pltd.)
Bolt
Socket head screw
Clamp
Muffler
Gasket
Nut (copper pltd.)
Bolt
Heat exchanger
Gasket
Nut (copper pltd.)
Washer
Reactor
Seal
Nut (copper pltd.)
Bolt
Heat exchanger
Note when
removing
Allow it to cool down
to room temperature.
Remove heat ex-
changer and oil re-
turn line
installing
Replace every
miles
30, 000
Replace
Replace, if necessar:
Check for leaks
and damage
Replace
Replace
Replace, if necessar:
Check for leaks
and damage
Replace
Replace, torque to
mkp
2.3
Check for leaks
Replace, install with
blue side facing to-
ward cylinder head
Replace
Replace, if necessary
Check for leaks
and damage
911
Remarks