Onan MCCK Series User Manual

MINIMUM MAXIMUM
1 DESCRIPTION
PISTON PIN
1 Clearance in Piston ...............................................
Clearance in Connecting Rod ......................................
Diameter ........................................................
PISTON RINGS
Clearance
Top Groove
....................................................
Ring End Gap in Cylinder .........................................
INTAKE VALVE
Stem Diameter ...................................................
Clearance (Stem to Guide) ........................................
Valve Face Angle .................................................
INTAKE VALVE SEAT
Valve Seat Width .................................................
Valve Seat Angle .................................................
€XHAUST VALVE
Stem Diameter ...................................................
Clearance (Stem to Guide) ........................................
Valve Face Angle .................................................
EXHAUST VALVE SEAT
Seat Cylinder Head Bore Diameter ..................................
Seat Outside Diameter ............................................
Valve Seat Width .................................................
Valve Seat Angle .................................................
VALVE GUIDE
Inside Diameter ..................................................
TAPPET
Body Diameter ...................................................
Bore Diameter ...................................................
Clearance in Bore ................................................
VALVE SPRINGS INTAKE AND EXHAUST
Valve Spring Free Length (Approx.) .................................
Valve Spring Length
Valve Open
.................................. .................
Valve Closed ...................................................
Spring Load @ 1.375 inch (Valve Closed) .............................
Spring Load I@ 1.125 inch (Valve Open) .............................
GEAR BACKLASH
Timing Gear .....................................................
Oil Pump Gear ...................................................
Inches
0.0002
0.7500
0.002
0.01
0
0.3425
0.001
0
0.031
0.3410
0.0025
1.1890
1.1920
0.031
0.344
0.7475
0.7505
0.001
5
38 ib .
71 Ib
0.002
0.002
(mm) Inches
Thumb Push Fit
(0.005) 0.0007
(1 9.05) 0.7502
(0.051) 0.008
(0.254)
0.020
(8.70) 0.3430
(0.025)
0.0025
44"
(0.787) 0.047
45"
(8.661) 0.3415
(0.064) 0.004
44"
(30.20) I . 1900
(30.28)
1 . I930
(0.787)
0.047
6" .
(8.74) 0.346
(1 8.99) 0.7480
(19.06)
0.7515
(0.038)
0.003
1.662
. (42.21)
1 . 125 (28.58)
1.375 (34.93)
(17
kg) 42 Ib .
(32 kg) 79 Ib
(0.051) 0.003
(0.051)
0.005
(mm)
(0.01 8)
(19.06)
(0.203)
(0.508)
(8.71)
(0.064)
(1. 194)
(8.674)
(0.102)
(30.23)
(30.30)
(1.194)
(8.79)
(19.00)
(19.09)
(0.076)
(19 kg)
(36 kg)
(0.076)
(0.127)
5
Redistribution or publication of this document
by any means, is strictly prohibited.
Redistribution or publication of this document
by any means, is strictly prohibited.

Onan MCCK Series Specifications

General

Cylinders	2
Fuel Type	Gasoline
Governor Type	Mechanical
Starting	Electric
Lubrication System	Pressure
Rotation	Counterclockwise
Bore	3.25 in. (82.6 mm)