Cam Shaft Valve Cam Chain - Honda C72 Shop Manual

' I t e m
I
Standard
I
Repei,i'9 limit Adjos';'9 Poiot
I
Remarks
I t em
I
Standard I Repeid'9 l imi t
I
Adjusti'9 poiot
I
Remarks
Piston ring Width 2.4 - 2.6 2.0 less
Ex change
Com chain
Type DK- 219
10ili
0.0944 - 0.1 02 10.07871
*
2.78 - 2.795
Exchange
0.109 -0.110
Thickness
2.78-2.795
2.7 less
Exchar,ge
0.109 - 0.110
0.106
*
2.6-2.8
*
2.5 less
Ex change
0.0944 - 0.110 0.0984
Tension
0.7 - 0.9 kg 0.5 kg less
Ex ch ange Tangential tension
Length 723.0 - 723.8
728.0 Exchange
28.464 - 28.496 28.661 more
Exhaust valve Thickness 1.0 0.5 less
0.0393
I
0.00196
Exhaust valve (Steml Out. dia.
6.96-6.97
,
6.94 less
Rectjfy or
0.274 - 0.274 0.273
Exchange
Exhaust valve
Angle 90-91 0
OUI-slanda rd
Exchange
ISeat facel
1.543- 1.984105 1.1021bs
*
0.9 -1.15 kg
.
0.7 kg less
Exchange
~
1.984-2.53Ibs 1.5431bs
End gap 0.1-0.3
0.8 more
Rec tify the
Wh en
a ttaching
Exhaust valve Overall 88.7 4 - 88.7 6 89.4 leSs
Exchange
length
3.493 - 3.494 3.519
Inlet valve Thickness
1. 0 0.5 less
Exchange
0.039
I
0.019
0.00393 - 0.0118 0.0314
narrow ri ng
Exchange the
wide ring
Pisto n ring & groove
Clearan ce 0.045 - 007 0.15
more Exc hange
Inlet
valve
ISteml
Out. dia.
6.98-6.99
6.96 less
Ex change
0.274 - 0.275
0.274
I
or rectify
Inl et valv e ISeatl Angle
90 0 -9 1
0
out-standa rd
I
Ex cha nge
ITopl
0.0059
*
0.04-0.07
i<
0.15 more
Exchange
* 0.0059
Piston ri ng & groove
Clearan ce 0.01-0.0 4 0.1
more Exchange
(Second I
0.00393
Piston ring
&
groove Clearance 0.0 1- 004
0.1 more Exchange
10ili
0.00393
Piston ri ng oversize
O versize
0.25
3 category of
0.00984
0 .25 ove rsize
Inlet valve Overall
89.96-89.98
89.6 less
Ex change
lenglh 3.541 -3.542 I
3.521
Valve spring flnn er! Free length 37.5 4
I
36.0 less
Ex change
1.477 1.417
Diagonal
0.8 less 1.5
more Exchange
d egree
Tension 7.6 - 8.4 kg 60 kg less
Ex chan ge
18.9 -20' kg 16.0 kg less
I
16.754-18.518
I
13.227
i
41.667 - 44.31 3
I
35.273
C. Cam Shaft Valve Cam Chain
Valve spri ng tOuler! Free length
43.36
42.0 less Excha nge
1. 707
I
1.653
1
t
e m
I
Standard
I
Repei,i '9 limit
Ad iu5fing poi :"! 1
I
Remarks
Diagonal 0.8 less
,
1.5
more Exchange
degree
1
Com shaft
I
Out. dia. 19.996 - 20.009
19.95 less
I
Exchange
lBearing partl 0.787 -0.787 0.785
Cam (Bearing parl l Height In 31.67-31.71
31.4
Exc honge
1.246 - 1.248
I
1.236
I
Ex.30.54 - 30.58
30.2 less
I
1.202 - 1.203 1.188
,
Max. lift Com shaft lift In 5.69
, ,
I
,
0.118
,
Ex. 4.56
0.179
Tension
16.9- 18. 1 kg
15.0 kg less Exchange
34.4 - 34.6 kg 32.0 kg less
I
37.257 -29.9 03Ib, 33.0691bs le"l
7 5.838-7 6.279Ib, 70.547 Ibs less'
Exhaust valve guide
In .
dia. 7.0 -7.0 1 7.05
more Exchange
0.275 - 0.2759 0.2775
Inlet val ve guide
In. dia. 7.0-701
7.05
more Ex chang e
0.275 - 0.2759 0.2775
Touch width 1.0 20
more
I
Rectify
Repair of cy linder
Valve seat
!
0.039
0.08
head
Cam sprocke, t Nos. of
32
Rocker
o,m
In. dia. 13.0 -1 3.027
13.1 more
Ex change
complete teeth
,
I
I
1
Bottom dia , 74.766
74.2 less
Exchange
2.943
2.921
0.51 1- 0 .512
0.515
I
Rocker arm shaft
Out. die. 12.966 -1 2.984
12.9 less
Ex change
I
tRacke r orm partl 0.510 - 0.51 1 0.507
24
25