Honda C70 Manual

 
.|-'—

.=""

F

’,r'_‘\.
 f""'~

|p"“\.

r"""

1"‘

If
 '-

,e—.

q-_
 Fnorcna.

CYLINDER
HEADIVALVE

CYLINDER
 IIEIIII
IIEIIIWIIL

Hem-zrue
 the
Front
 mover

[Ji:nur|net':1
 the
intake
 pi-pa
from
 the
cylinder
 Mad-

'FI|rr'ri;|;ri.ra
 the
|:ur|'|nr_'I
 |1|:||'l'l1
CDHEI
 in-DI
TUH1
 12I1B

rzcanlcshaft
 cnun'tercI0cIn'rir-0
 in
align
 the
"T"
 fl'lil'Ii

-m1h
 the
I11|;Iex
 mark.

Rqtnnvr
 the...

 
0v|.|rv0ee

HEADNALVE
 [flu
J

__:-"

HONDA

.~"'.T

LODBBII
 II1:
(:1.-lllrder
 I5
mm
 bnlt.

Remove
 the
cylinder
 heed
E
n'||'|'|
 halt
 and
r;-,-llndgr

head
 cover.

Fiarnave
 the
|:r-,rIIn.elet
 heed.

Remove
 the
D-rinqi.
 cvlintlet
 heed
gasket.
 and
rrlnlugl

pins.

[IYLINDEII
 IEIIIII
DISIISSEIIBLY

Rnmuvl:
 the
I:-pllndat
 head
right
aide
eeuer
 00.;-I

gasket.

Flume’-1|:
 the
valve
 Inspection
 cape
and
D-nnga.
 CYLINDER

IJCIWE
CYLINDER

HEAD
 CYLINDER...

 
_|—.

|

'1-I-.

f,|—.
 F‘

ra-

'3".

.I"_‘*-

ll/"'.'*~.

If“-.
 r’-.-Eh!-Io1\tn.a.

$5,»
 010
 CTLINDEH

HEADIVALVE

Sgrgw
 an
E
rr|rn
 Ia::iIl
 |rr!t‘:
1'I‘|E
IDEIIZE-I’
 il'|TI
5I13"I'l'
 i1l'll'I

pull
 me
ihafi
 out
Qf
the
 I:','II|1rIEr
 I‘rEIB.|EI.

FI|.7rr|u'.r1}
 the
r-ackel
 arma.

Remuve
 lllc
camshaft
 aitgr-lnq
the
um
 IOI0e-.1.
 vvlth

the
 cvllnder
 head
cutcnts

gemmn
 ._h|_.
1,-.,|\.,-I
 gpriq]
 11u|1'1:cri_...

 
CYLINDE

R
HEADIVALVE
 I-Iowna./’

cm
 E13.»

Flam-1:00
 r.arb0n
deposits
 from
the
DIJ|'I‘|I.Il.'tlI|:|n

chamber.

CIEHH
 eff
the
 head
 gaslrart
 surface-.

NOTE
 ‘
 -
Aueid
 damegirrg
 the
gasket
 mrtnce.

-Gasket
 materiel
will
name
 c-ff
easier
 if
necked

in
 eelvant.

ROCKER
 ARM
INSPECTION

Iraap-a|:.t
 he
r0l:Iter
 arms
fer
damage,
 wear
ur
clogecl

all
 helet.

Manure
 the
I.D.
 of
the
 rueltar
 lr1'n.

BTAHDARD1
 10.000-1D.fl1E
IH|'II

III.393il'—II.H-I-I-3
 InI

SERVICE...

 
_;—\

__,.¢—.

.4

F

1"“-
 F1

'{""'\.

1""-

f""

‘,4--.

‘I;--.
 I-Iomnn.

I
 C10
 CYLINDER
HEADIVALVE

"-1;

CAMSHAFT
 INSPECTION

Using
 a
micrometer.
 measure
the
cam
 Inn-aa.

Ch-|:|:k
 ldr
wur
 ur
r.'Hr|'|B=g|:.

STAN
 DAHD:
 25.9?
mm
H.025
 inl

SERVICE
 LIMIT:
25.55
mm
I'I.fl"I1
 IIII

A‘?

CHMSHAFT
 DIL
CLEARANCE

Mnnum
 and
rrrcmd
 tha
camshaft
 iuurngl
CID-

Measure
 and
rennrd
 flan
cams!-um
 hearing
l.lJ.
in
the

cylinder
 baud....

 
CY

Ll
ND
 E
Fl
 H
EA
 DFVALVE
 ‘I
'\'.

-

VA
 L"u"E
 STEM--TD-GU
 I
DE
 CLEA
 Fifl\i"aiCE

lru|.1:|:r
 finch
value
 for
i:|=enr.lln-g,
 1.1|.|ming,
wmdqqq
 |J|'

Msurmal
 i‘iIE*fl'|
wear.

Chuck
 vnlvn
muvnmant
 in
the
 guitin

Measure
 and
re-::urd
 path
vdluq
 stum
C|,|]_

STAN
 DAFID:

IN:
 E.i455—5.#B5
 mm
[H.211-8-0.2-152
 ini

EX:
 5.1-35-54145
 mm
ED.21-W-iJ.i14-l
 in]

SEFIVIBE
 LIMIT:

IIWEK:
 E.-40
mm
[H.213
 ini

NOTE
 _
_

I
 Fi-Ham
 tha
|pi-cia
 tn
remnue...

 
‘I
1"‘

'11-“.

F
 K“
 1""

r'~

F‘

F‘
 _|—\.,__‘

1'7

I-""“'~
 HONDA

géé
 CT
[I
 CYLINDER

HEADIVFI
LVE

'H.l.VE
 EIIIIJE
REFLIIIIEIIEIIT

Support
 the
cyllndar
 head
and
drive
 the
g|.|lcla-
 out

from
 fin}
purl
 iirih.

MUTE
 U_
_

L
 vmm
 driving
 out
the
u-aha
 guide.
 do
not
 I

IIHFl'|I:tQ!
 Ii'H'.l
I'll!-IIIII

Install
 a
new
 uuanfza
 vulva
quilzln
 from
liw
In-P
 HI

the
 head.

Flpim
 lhu
haw
 viii‘!
 guide
 altar
lnllnlltl-I
 DH-...

 
HON

na.
K

cirurueee
 HEADNALVE
 [:10

_
 _
 _i
 II

IIIIIVE
 SEIIT
IHSPEBTIUIUIIEFABIHE

Clmdh
 Ii-nth
intake
 mid
m-ch-ans!
 '-l'IIi'lJB=S-
themuqhiv
 tu

rum-we
 earhun
deposits
 Apply
e
light
 eeatirig
 0|‘

value
 lapping
 erampnund
 1|;
1_'!I,lI2|'1
 vglvu
 fem,
Lap

B-lfih
 '-‘alum
 and
suat
using
 I
rui:|i:|er
 here
or
d-ther

hand-lapping
 tout.

NOTE
 Take
 mere
net.
lu
allow
 lh:
mmpwnd
 It!
enter
 I

ilirlwflm
 the
valve-stem
 and
guide.

ll-lter
 lapping,
 wash
ciut...

 
,—.

ft

HON
 nn.

Ikfij,-'
 [:11]
 cvtluuee
HEADNALVE

VALVE
 INi"-IEFI

‘T
 BILIHUIER
 nun
tsstmatt
 calm
=.~=-qt;

If’

if-'-~.
 1"“

re

1-

1""

I
 durtlagc.

.
 —'-.

1'“

._i
 i|t5IaiI

||:t\'
iiulv:
 sI|t'n
s:::l:..

Luhrit:-ate
 E-at-I'i
valve
 i1.£|‘|'|
'-\'|1J1
rnul'g|-l.trle|1um

|Ii|5-uiEiti|:
 |3|'I:'.?ISl!
:trt|;|
int-:|;:r1
 the
value
 intlj
1,115
I,|.3|';1|3

taiida.

NCITE
 Tu
 uuuid
 damage
 tn
the
 item...

 
HONDA

r"

tI:vurteee
 nen.erwt|.ve
 C-III
.
-.

lnutall
 the
ceneqrteft
 aligning
the
cam
 igbui
 wifl1
the

cvlihder
 heed
cuinutq.

Align
 the
camshaft
 huie
with
 the
qliind-qr
 head

5l'i|:lB:-I
 l'l'1B-tit
1'1-tr
ease
 tnrrulwfl
 _aprecJt'at
installation.

Apply
 a
thin
 cu-It
 of
engine
 pil
tci
the
 rucher
 arm

ti-nifu.

lnt-tell
 the
rucl-ter
 etml
and
trltnll-I
 with
lite
Illfflflilltl

ands
 facing
 cut.

II‘il.i{l'|Ii
 the
t:i,'ilntler
 head
tight
 sidia...