BF15DnBF20D
full throttle rpm
I
BF20D
1
5,000
-
6,000 min-1 (rpm)
5.
MAINTENANCE STANDARDS
-
ENGINE
Valve seat width
I
N/EX
Camshaft iournal
I.D.
No.
1
Part
0.9
-
1.1 mm (0.035
-
0.043 in)
20.000
-
20.021 mm (0.7874
-
0.7882 in)
2.0 mm (0.08 in)
20.05 mm (0.789 in)
Item
I
Standard
I
Service limit
Guide I.D.
IN/EX
Stem-to-guide
IN
clearance
EX
I
Free length
Engine
1
5.000-5.012 mm (0.1969 -0.1973 in) 5.04 mm (0.198 in)
0.07 mm (0.003 in)
0.12 mm
(0.005
in)
32.0 mm (1.26 in)
0.01
0
-
0.037 mm (0.0004
-
0.001
5
in)
0.030
-
0.067 mm (0.0012
-
0.0026 in)
33.28 mm (1.310 in)
Idle speed (in neutral)
I
900+50 min-1 (rprn)
1
-
Cam height
(IN/EX)
Recommended
I
BF15D
1
4,500
-
5,500
min-1 (rpm)
-
I
BF15D
BF20D
23.725 -23.885 mm (0.9341 -0.94041 in) 23.103 mm (0.9010 in)
24.976
-
25.1 36 mm (0.9833
-
0.9896 in) 24.493 mm (0.9643 in)
Journal
O.D.
Cylinder compression
No.
1
Oil pump
19.959
-
19.980 mm (0.7858
-
0.7866 in)
1
19.93 mm (0.785 in)
15.966
-
15.984 mm (0.6286
-
0.6293 in) 15.94 mm (0.628 in)
1
1,370k98 kPa (14.0k1
.O
kgf/cm2,
I
-
199f14 psi) at 600 min-1 (rpm)
No.
Journal-to-shaft
clearance
Cylinder heads
0.020
-
0.062 mm (00.0008
-
0.0024 in)
0.08 mm (0.003 in)
Warpage
I
0.05
mm (0.002 in) max.
1
0.08 mm (0.003 in)
Rotor tip clearance
Outer rotor-to-body clearance
Rotor-to-pump body side
clearance
Pump body
I.D.
0.15 mm (0.006 in) max.
0.15
-
0.21 mm (0.006
-
0.008 in)
0.04
-
0.09 mm (0.002
-
0.004 in)
40.71
-
40.74 mm (1.603
-
1.604 in)
0.20 mm (0.008 in)
0.26 mm (0.01
0
in)
0.12 mm
(0.005
in)
40.76 mm (1.605 in)
Valves
Pump body depth
Outer rotor heiaht
Clearance
I
IN
1
0.15-0.19 mm (0.006-0.007 in)
I
-
12.04
-
12.07 mm (0.474
-
0.475 in)
11.98
-
12.00 mm (0.4717
-
0.4724 in)
12.1 1 mm (0.477 in)
11.96 mm (0.471 in)
-
I
1
EX
I
0.21 -0.25 mm (0.008 -0.010 in)
I
Warpage
Stem
O.D.
I
IN
1
4.975
-
4.990 mm (0.1 959
-
0.1 965 in)
I
4.95 mm (0.1 95 in)
0.07 mm (0.003 in) max.
1
0.10 mm (0.004 in)
I
EX
1
4.955 -4.970 mm (0.1951 -0.1957 in)
I
4.93 mm (0.194 in)
Valve guides
Valve springs
Rocker arms,
rocker arm shaft
~
Shaft
O.D.
1
12.962
-
12.980mm (0.5103 -0.5110 in)
1
12.92 mm (0.509 in)
Arm
I.D.
I
13.000
-
13.01 8 mm (0.51 18
-
0.5125 in)
1
13.04 mm (0.51 3 in)
Shaft-to-rocker arm clearance
I
0.020
-
0.056 mm (0.0008
-
0.0022 in)
1
0.07 mm (0.003 in)
Camshaft
Camshaft axial play
I
0.05
-0.30 mm (0.002 -0.012 in)
I
0.4 mm (0.016 in)
Oil pump
Camshaft iournal I.D.
I
16.000
-
16.01 8 mm (0.6299
-
0.6306 in)
I
16.05 mm (0.632 in)
Pump body-to-camshaft
clearance
!
0.016
-
0.052 mm (0.0006
-
0.0020 in)
~
0.07 mm (0.003 in)
Pump body
O.D.
1
30.950
-
30.975 mm (1.21 86
-
1.21 95 in)
I
-
Fuel pump Pump arm
I.D.
1
13.000
-
13.080 mm (0.51 18
-
0.5150 in)
1
13.1
0
mm (0.51 6 in)
Shaft-to-pump arm clearance
1
0.020
-
0.1 18 mm (0.0008
-
0.0046 in)
1
0.1 3 mm
(0.005
in)
Sleeve
I.D.
1
59.000
-
59.015 mm (2.3228
-
2.3234 in)
1
59.055 mm (2.3250 in)
Cylinders
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