Onan NH Series User Manual

REF.
PART
QTY.
PART REF.
PART
QTY. PART
NO.
NO.
USED
DESCRIPTION
NO.
NO.
USED DESCRIPTION
25 INSERT, INTAKEVALVESEAT-SPECA
34 509-0117
1 Seal, "O" Ring, Breather
THROUGHB
Tube
110-1717
2 Standard
35
110-0068
2 "Gasket, Valve Guide (Intake)
110-1717-02
2
.002" Oversize
36
STUD, CYLINDER HEAD MOUNTING
110-1717-05 2
.005" Oversize
520-0717
8 3/8" x 1-7/8"
110-1717-10
2 .010" Oversize
520-0715
8 3/8" x 2-3/4"
110-1717-25 2
.025" Oversize
520-0716
4 3/8" x 2-1/4" •
BEGINNING SPEC C
37
NUT, FLANGE -CYLINDER HEADSTUD
110-1933 2 'Standard
870-0248
20 Spec A through B
110-1933-02 2
.002" Oversize
104-0091
20 Begin Spec C
110-1933-05 2 .005" Oversize
38
800-0011
2 Screw (1/4-20 x 2")-
110-1933-10 2 .010" Oversize
Valve Box Cover (Replaces
110-1933-25
2
.025" Oversize
Stud used on early models)
26 GUIDE. VALVE
39 115-0025
2 Nut, Hex - Valve Box Cover
110-1762 4 Spec A through B
Stud (Used on Early Models
110-1939
4
"Begin Spec C '
with Stud)
27
110-0539 .
• 4 Spring, Valve
40 526-0250
20 Washer, Flat - Cylinder Head
28 110-0639 8 Lock, Valve and Spring,
Stud - Begin Spec C
Retaining
41
154-1424
2 'Insert, Exhaust Port-
29 TAPPET,VALVE
Begin Spec C
115-0006 4 Standard
43 104-0776
As Req. 'Shim (.005") - Crankshaft
115-0006-01 4 .001" Oversize
Thrust
115-0006-02
4
.002" Oversize
44 809-0035
1 Screw, Breather Clamp
115-0006-05 4 .005" Oversize
45 526-0251
5 "Washer, Bearing Plate Stud
30
110-0904 2 Rotocap, Exhaust Valve
31 110-0893 2
Washer, Retainer - Intake :
* -
Included in Cylinder Block Assembly.
Valve Spring
£ -
Use one only with rear bearing on units with flange
32
123-0951 1
Clamp, Breather Tube Cap
type front bearing. .
33 123-0958
1
Screen, Breather Tube
31

Onan NH Series Specifications

General

Frequency	60 Hz
Engine Type	4-Cycle
Fuel Type	Gasoline
Starting System	Electric
Voltage	120/240V
Noise Level	72 dB(A) at 7 meters
Fuel Consumption	0.5-1.0 gal/hr (gasoline)