General Specifications - Winnebago 1987-1989 LeSharo Service Manual

GENERAL INFORMATION
SPECIFICATIONS
Rocker Arm Clearance (Cold)
Intake 0.10 to 0.15 mm (0.004 to 0.006 in)
Exhaust.. 0.20 to 0.25 mm (0.008 to 0.010 in)
Valve Train
Camshaft End Play 0.05 to 0.13 mm
(0.002 to 0.005 in)
Cylinder Numbers
0000
Flex
Plate
Valves
Valve Stem Diameter Exhaust 0.313
Intake 0.314
Intake Valve Head
Diameter 44 mm (1.732 in)
Intake Valve Face Angle 30°
Exhaust Valve Head Diameter 38.5 mm
(1.516 in)
Exhaust Valve Face Angle 45°
Intake Valve Timing
Opens.................................................. 12° BTDC
Closes 52° AB DC
Exhaust Valve Timing
Opens................................. 52° BBDC
Closes......... 12° A TDC
Valve Overlap 34°
Cylinder Head
Cylinder Head Height 111.6 mm (4.394 in)
Combustion Chamber Volume 58.15 cc
Valve Guide Inside Diameter 8 mm
(0.315 in)
Valve Stem-To-Guide Clearance 0.1 mm
(0.002 in)
Piston Rings
Piston Ring Thickness
Top Compression 1.75 mm (0.068 in)
Upper Compression 2.00 mm (0.078 in)
Oil Scraper 4.00 mm (0.157 in)
Piston Ring Gap Pre-Adjusted
Crankshaft
Number of Main Bearings 5
Main Bearing Journal Diameter 62.892 mm
(2.476 in)
Regrind Diameter 62.842 mm (2.474 in)
Grinding Tolerance -0.0 to -0.019 mm
(-0.- to -0.0007 in)
Connecting Rod Journal Dia............. 56.296 mm
(2.215 in)
Regrind Diameter 0.25 mm (0.0010 in.)
Grinding Tolerance -0.01 to -0.029 mm
(-0.0004 to -0.0011 in.)
End Play................................... 0.13 to 0.30 mm
(0.005 to 0.011 in)
Thrust Washers with different thicknesses are
available
Pistons, Connecting Rods and Piston Pins
Piston-To-Connecting Rod Fit Press Fit
Connecting Rod End Play -
Small End 0.31 to 0.57 mm
(0.012 to 0.022 in)
Piston Pin Length 75 mm (2.952 in)
Piston Pin External Diameter 23 mm
(0.905 in)
Piston Pin Internal Diameter 14 mm
(0.551 in)
. General Specifications
Type In-Line, 4 Cylinder OHC
Bore 88 mm (3.46 in)
Stroke 89 mm (3.50 in)
Displacement.. 2.2 Liter (132 cu. in.)
Compression Ratio 8.7: 1
Firing Order......................... 1-3-4-2
Fuel Requirement Unleaded
Spark Plugs
Type Champion RS9YCor AC CR42LTS
Gap 022 to .026 in
Cylinder Block and Liners
Liner Height 148.5 mm (5.846 in)
Bore Diameter 88 mm (3.464 in)
Base Locating Diameter 93.6 mm (3.685 in)
Line Protrusion
(w/O-ring) 0.08 to 0.15 mm
(0.003 to 0.006 in)
Liner Height to Flange .... 93.065 to 93.096 mm
(3.663 to 3.665 in)
Cyl. Block Depth
to Flange (92.942 to 92.985 mm)
(3.659 to 3.660 in)
Cylinder Block Depth 149.25 to 149.75 mm
(5.875 to 5.895 in)
B1-13