Toyota 2F - Page 37

3- 36
fig . 3-106
Fig. 3-107
Fig. 3 - 108
I
Fig. 3- 109
ENGINE SERVICE - Cylinder Block
INSPECTION & REPAIR
Cylinder Bl ock
I. Cl ean lhe cylinder block and check 1 01
crac ks or score s.
Using a precision s1ra igh1 e dg e and th ick·
n ess ga u9 e. check 1 he cyl i nde1 block 1op.
side surface f or warp age .
T ops i de s urf a ce warpag e:
Limit
0. 15 mm
(0. 0059 in.I
Check for warpage along th e ind 1c a 1ed
lines
~ 4 .
Visually c heck 1he cyl1nde1 fo1 vertical
scra1ch es. If deep sc1a1 ches arc presenl.
lhe cylinder rnus1 be reborcd.
Fig.
3- 110
A : 15 mm (0. 59in)
8 : 60 mm 12 . 36i n} © : Th r usl Oireetion
C : 60 01m (2 . 361n.l ®: A lda l Dire ction
Fig. 3· 111
Fig. 3· 112
ENGINE SERVICE - Cylinder Block
3- 37
[fl] 6.
Measure 1he cy l111 d e1 bore at lhc POSll ion
shown in th e hg u re.
If the bore exceeds spcc1hcat1on . n must
be rebored.
Cy linder bore:
STD 94.00 - 94 . 05 • nm
(3. 7008 - 3. 7027 in .)
Wea
r:
Limit 0.2 mm (0.008 un.l
Taper and out-of-round:
Limit 0. 02 mm (0 . 0008 in.I
Difference of bore limit between
each cylinder :
Less than 0. 05 mm
(0. 0020 in.I
If 1h e we ar os less 1han 0.2 mm {0.0 08 in I.
u se a ridg e 1ea1ner to machi ne 1h e p iston
ring ridge at the top or the cy lin der
Piston Pin & Connecting Rod
I Try to move the pis1on back and t onh o"
1h e pis1o n pi n.
If any movement is lelt. replace lhe pist on
and pin