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SUMMING UP OF DATA PERTAINING TO CRANK MECHANISM PARTS
(Manufacturing measures)
Cylinder barrel dia.:
Piston diameters
:
-
at piston top
-
below top ring
-
below 2nd ring
-
at
recesses
below oil scrapers
-
5
mm.
(.
196") below top oil scraper
recess
-
selection
dia.
at 18.5 mm
. (.728")
over piston bottom edge
-
at piston bottom
-
piston pin housing
dia.
Piston pin dia.
Main shaft dia
..
flywheel side
Main shaft dia.
,
timing side
li
D
of main bearings c/w flange
:
80.000 - 80.018 mm
.
(3.1496
- 3.1503")
79.600 - 79.650 mm
.
(3.1338
- 3.1358")
79 .700 - 79.750 mm
.
(3.1378
- 3.1397")
79.000 - 79.100 mm
.
(3.1102
-
3 .1141")
79 .100
-
79.150 mm
.
(3.1149 - 3.1161 ")
79 .922 - 79.940 mm.
(3.1465 -
3.
1472")
79.952 - 79.970 mm
.
(3.1477 - 3
.1484")
79.922 - 79.940 mm
. (3.1465
-
3.1472")
22 .000 - 22.006 mm
.
(.8661
-
.8663")
22.001 - 22.006 mm
.
(.86614 -
.86634")
53.970 - 53.951 mm
.
(2.1248 - 2.1240")
37.975 - 37.959 mm
.
(1.4951 -
1.4944")
-
flywheel side
54.000 - 54.019
mm.
(2 .1260 - 2.1268")
-
timing side
38.000 - 38 .016
mm.
(1 .4961
- 1.4967")
Undersize range of main bearings
available (see chart on page 27)
as spare parts:
0.2 mm
.
(.00787")
-
0.4 mm
.
(.01574")
- 0.6 mm
.
(.02362") - 0.8 mm
.
(.03149"
)
Crankpin
dia.
44.013 - 44.033
mm.
(1 .7328
-
1.7336")
Dia.
of con-rod big end bearing housing
47.130 - 47.142 mm
.
(1 .9016 - 1.8559"
)
Original thickness of con-rod bearings
1.534 -
1.543 mm
.
(.06039 -
.06070"
)
Oversize
range
of big end bearings
(see chart on page 23) 0.254 mm
. (.010") -
0 .508 mm
.
(.020") - 0.762 mm. (.030") -1 .016
mm.
(.040")
li
D of small end
bushing
(after pressing
in):
22.020 - 22.041 mm
.
(.8669
-
.8677')
31
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