FITS &
TOLERANCES-
TORQUE SPECIFICATIONS
ENGINE FITS AND TOLERANCES -
510
DESCRIPTION
I. Crankcase • Cylinder Head • Oil Sump
0.0.
of
cylinder liners:
-standard
.........................................
.
-0.2
mm. (0.008 in.) oversize
..........................
.
Diameter
of
crankcase bores:
-standard
.........................................
.
-0.2
mm. (0.008 in.) oversize
..........................
.
Interference
fit
of
cylinder liners in crankcase bores
......
.
1.0.
of
standard liners (press-fitted):
-Class
A
..........................................
.
-Class
B
..........................................
.
Dia.
of
crankcase bores for valve tappets:
...............
.
Dia.
of
crankcase bores for camshaft bearing bushings:
-Front
............................................
.
-Middle
..........................................
.
-Rear
............................................
.
Dia.
of
crankcase main bearing locations
...............
.
Dia.
of
cylinder head locating bores for valve guides
......
.
Angle of valve seats in cylinder head
...................
.
II. Timing
1.0.
of
camshaft bearing bushings (in place):
-Front
............................................
.
-Middle
..........................................
.
-Rear
............................................
.
Assembly clearance between camshaft and bearings:
-Front
............................................
.
-Middle
..........................................
.
-Rear
............................................
.
0.0.
of
camshaft bearings:
-Front
............................................
.
-Middle
..........................................
.
-Rear
............................................
.
Interference
fit
of
camshaft bearings in crankcase bores:
-Front
............................................
.
-Middle
..........................................
.
-Rear
.............................................
1
Dia.
of
valve stem
...................................
.
I.
D.
of
valve
guides
(fitted)
............................
.
~ssembly
clearance between valve stems and guides
.....
.
p.o.
of
valve guides:
-standard
.........................................
.
-0.20
mm. (0.008 in.) oversize
.........................
.
nterference
fit
of
valve guides and
their
seats in the
cylinder head
.....................................
.
Max.
0.0.
(intermediate)
of
valve tappets
................
.
Assembly clearance between tappets and crankcase bores
..
.
0.0.
of
rocker arm
bushings
..........................
.
Oia.
of
rocker arm bushing locations
...................
.
nterference
fit
between bushings and rocker arm
locating holes
....................................
.
.0.
of
rocker arm
bushings
...........................
.
"ssembly
clearance between rocker arm shaft and
bushings (fitted)
..................................
.
Eng1ne
·50
Size
of
New Parts and Wear
Limits
mm
ln.
106.020 . 106.050
106.220. 106.250
105.890. 105.940
106.090. 106.140
0.080.
0.160
102.000. 102.012
102.012 . 102.024
14.000.
14.018
54.780 . 54.805
54.280 . 54.305
53.780 . 53.805
80.587 . 80.607
13.966 . 13.983
44
°55' .
45
°5'
51.080.
51.130
50.580 . 50.630
50.080 . 50.130
0.080.
0.160
0.080 . 0.160
0.080 . 0.160
54.875 . 54.930
54.375 . 54.430
53.875 . 53.930
-0.070.
-0.150
- 0.070 .
-0.150
-0.070.
-0.150
7.895.
8.000
8.023 • 8.038
0.023 • 0.053
13.988 . 14.016
14.188 • 14.216
- 0.005 . - 0.050
13.950 . 13.970
0.030 • 0.068
21.006 • 21.030
20.939 . 20.972
-0.058.
-0.121
18.016 . 18.034
0.016 . 0.052
4.1740.
4.1752
4.1819.
4.1831
4.1689 . 4.1709
4.1768.
4.1787
0.0031 . 0.0062
4.0157.
4.0162
4.0162.
4.0167
0.5512.
0.5519
2.1567.
2.1577
2.1370.
2.1380
2.1173.2.1183
3.1727 . 3.1735
0.5498 . 0.5505
.
2.0110.
2.0130
1.9913 . 1.9933
1.9716.
1.9736
0.0031 . 0.0063
0.0031 . 0.0063
0.0031 . 0.0063
2.1604 . 2.1626
2.1407.
2.1429
2.1211.2.1232
- 0.0027 . - 0.0059
- 0.0027 . - 0.0059
- 0.0027 • - 0.0059
0.3108.0.3150
0.3159.
0.3165
0.0009.
0.0021
0.5507 . 0.5518
0.5586 . 0.5597
- 0.0002 . - 0.0020
0.5492 . 0.5500
0.0012 . 0.0026
0.8270 . 9.8279
0.8244.
0.8257
- 0.0023 . - 0.0048
0.7093.
0.7100
0.0006 . 0.0020
f
I
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