Onan MicroLite 2800 Series User Manual

ITEM
CYLINDER HEAD
Cylinder Head Deformation Limit
Section 3. Dimensions and Clearances
INCHES MILLIMETERS
0.00394/3.39370 0.1001100.0
Allowable Limit
Intake
Exhaust
Valve Clearance
Torque
I (18-24 ftolb) (25-33 Nom)
0.0039
0.1 0
0.00079-0.0031 0.02-0.080
0.00079-0.0031 0.02-0.080
Intake 44.5"-45'
44.5" -45"
VALVE
Valve Face Angle
0.0591 1.5
0.2153-0.21 57 5.468-5.480
Exhaust 0.2142-0.21 50 5.440-5.460
Valve Stem Diameter
Valve Guide Inside Diameter
I 0.21 65-0.21 70 5.500-5.51 2
Valve and Guide Stem
Clearance Between
Reference Valve
Intake 0.00079-0.001 73 0.020-0.044
0.001 57-0.00283 0.040-0.072
Intake
Opening
Valve Opening Closing
Closing Timing
(when cool) Exhaust
Opening
Closing
78' (58'-70' before top dead center)
118' (98"-110° after bottom dead center)
118' (98'-110°after bottom dead center)
78" (58"-70' before
top dead center)
Reference Value 1.299-1.31 9 33.0-33.5
i Allowable Limit 1.287 32.7
Valve Spring
Free Height
Reference Value 12.94
Ibf 0.8858 in 5.87 kgff 22.5 m
11.64 lb/0.8858 in 5.28 kgfl22.5 m
Load and
Height
0.0591 1.5
I
Allowable Squareness Limit
Valve Seat
Intake
Exhaust
Valve Seat Angle
45"
45"
Reference Valve
I 0.0394-0.051 2 1.0-1.3
3-1

Onan MicroLite 2800 Series Specifications

General

Brand	Onan
Model	MicroLite 2800 Series
Category	Portable Generator
Language	English