Toyota 2H Repair Manual page 118

E M - l 0 8 E N G I N E M E C H A N I CAL
INS P E C T I ON AND RE P A I R O F CRAN K S H A F T
I N S PECT C R A N K S H A F T F O R R U N O U T
1 .
( a ) P lace t h e c r a n k s h a f t on V - b l o c k s .
( bl
U s i ng a d i a l i n d i c a t o r. measure t h e c i rcle r u n o u t at
the center journal.
Maximum circle runout:
1 /
t h e c i r c l e ( u n o u t is greater t h a n m a x i m u m , replace the
cra n k s h a f t .
2 . I N S P E C T M A I N J O U R N ALS A N D C R A N K PINS
(a) U s i ng a micrometer , m e a s u r e the diameter of e a c h
m a i n j o u r n a l and c r a n k p i n .
M a i n j o u r n a l d i a m e ter :
Crank p i n d i a meter:
the
If
c l e a r a n c e . I f necessary, g r i n d or r e p l a c e the cranks h a f t .
(bl
C h eck each m a i n j o u r n a l and c r a n k p i n lor t a p e r a n d
o u t - o f - round as s h o w n .
M a x i mum t a p e r a n d o u t - o f-rou n d :
If t a p e r a n d o u t - o f - ro u n d i s g realer t h a n maximum, r e p ­
lace t h e c r a n k s h a ft .
3 . I F N E C E S S A R Y , G R I N D A N D H O N E M A I N J O U R N A L S
A N D/OR C R A N K P I N S
G r i n d a n d h o n e t h e m a i n j o u rn a l s a n d l o r c r a n k pins
undersized finished diameter. ( S e e procedure s t e p
I n s t a l l new main j o u r n a l andlor c r a n k pin undersize bear­
ings.
Cylinder B l o c k
-
0.06
size
S T D 69.980 - 7 0 .000 m m
( 2 . 7 5 5 1 - 2 . 7 5 5 9 ;n.1
U/S 0. 2 5 6 9 . 7 3 0 - 69.740 mm
(2.7463 - 2 . 7 4 5 7 in.)
U/S 0 . 5 0 69.480 - 69.490 mm
( 2 . 7 3 5 4 - 2.7358 ;n.1
U /S 0.75 6 9 . 2 3 0 - 69.240 mm
(2. 7 256 - 2.7260 ;n.l
U/S 1 . 0 0 68.980 - 6 9 . 9 9 0 mm
(2. 7 1 57 - 2 . 7 1 6 1 in.'
STD size 64.980 - 6 5 . 000
(2 . 1 646 - 2 . 1 654 in.J
U/S 0.26 6 4 . 7 3 0 - 5 4 . 7 4 0 mm
( 2 . 1 547 - 2 . 1 5 5 1 ;n.1
U/S 0 . 5 0 54.480 - 5 4 . 4 9 0 mm
f 2 . 1 449 - 2 . 1 4 5 3 in.!
U/S 0.75 54.230 - 54.240
(2. 1 3 50 - 2 . 1 3 5 4 i n . 1
U/S 1 . 00 53.980 - 5 3 . 9 90 mm
f2 . 1 252 - 2 . 1 2 6 9 in.l
diameter i s not w i t h i n s p e c i f i c a t i o n , c h e c k l h e o i l
(0.0024 in.)
m m
mm
mm
0.02 m m
(0.0008 i n . )
\0 t h e
2 )