26
Exhaust
System
INSTALLATIO·N
NOTES
Tighten reactor mounting nuts crosswise and
evenly.
Keep to torque specifications.
CHECKING
REACTOR
FOR
LEAKS
Note
The
reactor
's
operation need not
be
checked.
Only check
it
for leaks.
1.
Run
engine
at
idle
spee?.
2.
Insert an appropriate plug in
the
muffler's
outlet
pipe
and check reactor
by
listening
for leaks.
Replace a reactor which
leaks.
CHECKING
EXHAUST
GAS
RECIRCULATION
1.
Warm-up engine and then
let
it
run
at
idle
speed.
The
bypass
line
between the muffler
and
EGR
valve will
be
hot. which
is
necessary to check operation.
2,
Increase engine speed
to
4000
rpm.
Now
the
exhaust
line
between
the
EGR
valve
and the intake must be
hot.
too.
If
the exhaust
line
leading to
the
intake
is
not
hot,
the
following problems could
be
causing
this.
a)
EGR
valve
defective
b)
EGR
lines plugged
c) Vacuum bore in throttle housing plugged
d)
Vacuum hose plugged or leaks
e)
Exhaust filter between muffler and
EGR
valve
contaminated
REMOVING
AND
INSTALLING
EXHAUST
GAS
RECI!tCULATION
(EGR)
VALVE
Removing
1.
Pull off vacuum hose.
2.
Remove mounting screws.
3.
Take
out
valve.
Installing
Use new gaskets.
26-4
Exhaust System - Installation Notes, Checking Reactor
for
Leaks,
Printed in Germanv
To Next Page
Loading...
