Toyota 2H Repair Manual page 28

E N G I N E M E C HA N I C A L
E M · 1 8
(Possible Cause)
1. TU RBOCHA R G E R HEAT I N S U LATOR
R E S O N N A N C E
2 . EXHAUST P I P E L E A K I N G O R
V I B R A T I N G
3. E R RATIC T U RBOCHA R G E R O P E R A T I O N
EXC E S S I VE O I L C O N S U M PT I O N O R W H ITE E X H A U S T
(Possible Cause)
-
Turbocha r g e r Diagnosis
ABN ORM AL N O I S E
(C heck Procedure a n d Correction M e thod)
C heck f o r loose, improperly Ins t a l led o r defo rmed
jnsulator mount bolts, a n d repair or replace as
necessary.
C heck for deformed exhaust pipe. l o o s e m o u nt boils
o r d a m aged g a sket. a n d repair o r replace a s
necessary
10
R e fer Item
ATION. LACK O F
C ONS UMPTION.
(Check
C heck for oil l e a k a g e in exha u s t s y s t e m .
•
Remove the t u r b i n e elbow from t h e turbocharger
and check lor excessive carbon d e p o sits o n the
turbine
indicate a
h k
C heck lor oil leakage in intake air system .
•
C
ec for a)(ial p l a y in i m peller w h ee l . and replace
the t u r bo c h a rger
A)(ial play :
CAUTION:
PCV i n the blow by g a s so
not to d iagnosis this as an oil leakage from the
turboc harger.
f12H- Tl
7
INSUFFICIENT ACCEL ER.
o f
O R EXCESSIVE F U E L
POW E R
r
Procedure and Co e
r
wheel.
Excessive carbon d e p o s i t s would
f a u lty
turbocharger.
i f
neces sary. (See page EM-43
0. 1 3 m m (0.0051 inJ or less
must
There i s some oil mist from the
are
c
ct
ion Method)
)
be taken