BRP Johnson 4HP Service Manual page 19

Item
CRANKSHAFT / CONROD
Conrod small end inside diameter
Conrod big end oil clearance
Conrod big end inside diameter
Crank pin outside diameter
Crank pin outside diameter difference
(out-of-round and taper)
Conrod big end side clearance
Conrod big end width
Crank pin width
Crankshaft runout
Crankshaft lower journal oil clearance
Crankcase lower holder inside diameter
Crankshaft lower journal outside
diameter
Unit
STD mm (in)
Limit mm (in)
STD mm (in)
Limit mm (in)
STD mm (in)
STD mm (in)
Limit mm (in)
STD mm (in)
Limit mm (in)
STD mm (in)
STD mm (in)
Limit mm (in)
STD mm (in)
Limit mm (in)
STD mm (in)
STD mm (in)
GENERAL INFORMATION
*SPECIFICATIONS
Data
18.006 – 18.014 (0.7089 – 0.7092)
18.040 (0.7102)
0.015 – 0.035 (0.0006 – 0.0014)
0.080 (0.0031)
28.015 – 28.025 (1.1030 – 1.1033)
27.990 – 28.000 (1.1020 – 1.1024)
0.010 (0.0004)
0.20 – 0.90 (0.008 – 0.0035)
1.20 (0.047)
23.30 – 23.80 (0.917 – 0.937)
24.00 – 24.20 (0.945 – 0.953)
0.05 (0.002)
0.020 – 0.062 (0.0008 – 0.0024)
0.100 (0.0039)
25.000 – 25.021 (0.9843 – 0.9851)
24.959 – 24.980 (0.9826 – 0.9835)
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