TECHNICAL DATA 25
25.2
Tolerance, engine wear limits
Camshaft - cam height
Exhaust
33.10 ... 33.30 mm (1.3031 ... 1.311 in)
Intake
33.90 ... 34.10 mm (1.3346 ... 1.3425 in)
Valve spring
Minimum length, intake (without valve spring
40. 7 mm (1 .602 in)
seat)
Minimum length, exhaust (without valve spring
40. 7 mm (1 .602 in)
seat)
Valve spring seat
1.9 ... 2.1 mm (0.075 ... 0.083 in)
Cylinder/cylinder head - sealing area distortion
s 0.10 mm (S 0.0039 in)
Piston - diameter
Size I
94.93 ... 94.96 mm (3.7374 ... 3.7386 in)
Size II
94.94 ... 94.97 mm (3. 7378 ... 3. 739 in)
Cylinder - drill hole diameter
Size I
95.000 ... 95.012 mm (3.74015 ... 3.74062 in)
Size II
95.013 ... 95.025 mm (3.74066 ... 3.74113 in)
Piston/cylinder - mounting clearance
Size I
0.040 ... 0.082 mm (0.00157 ... 0.00323 in)
Size II
0.043 ... 0.085 mm (0.00169 ... 0.00335 in)
Wear limit
0.120 mm (0.00472 in)
Piston ring end gap
Compression ring
s 1.00 mm (S 0.0394 in)
Oil scraper ring
s 1.20 mm (s 0.0472 in)
Piston ring - groove clearance
s 0.08 mm (S 0.0031 in)
Connecting rod - end play of lower conrod bearing
0.20 ... 0.45 mm (0.0079 ... 0.0177 in)
Crankshaft - axial play
0.50 ... 0.60 mm (0.0197 ... 0.0236 in)
Crankshaft - run-out on bearing pin
s 0.16 mm (s 0.0063 in)
Clutch disc pack - thickness
Wear limit
� 26.4 mm (� 1 .039 in)
Oil pressure control valve
Minimum length of pressure spring
22.1 mm (0.87 in)
Shift shaft - play in sliding plate/shift quadrant
0.40 ... 0.80 mm (0.0157 ... 0.0315 in)
25.3
Engine tightening torques
Screw, oil jet for piston cooling
M4
2 Nm (1.5 lbf ft)
Loctite
®
243
™
Crankshaft speed sensor screw
M5
6 Nm (4.4 lbf ft)
and cable retainer
Loctite
®
243
™
Oil nozzle for clutch lubrication
M5
2 Nm (1.5 lbf ft)
Loctite
®
243
™
Oil nozzle for timing chain lubrica-
M5
2 Nm (1.5 lbf ft)
tion
Loctite
®
243
™
Oil nozzle, piston cooling
M5
2 Nm (1.5 lbf ft)
Loctite
®
243
™
281
Summary of Contents for FC 450 2018
Page 2: ......
Page 159: ...BRAKE SYSTEM 16 Check the foot brake lever for a firm pressure point 157 ...
Page 297: ...SERVICE SCHEDULE 28 295 ...