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Jabiru Aircraft
Pty Ltd
Instruction & Maintenance Manual
Jabiru 2200 Aircraft Engine
Hydraulic Valve Lifter Models
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REVISION
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9
Dated : June 2010
Issued By: DPS
Page: 101 of 116
L:\files\Manuals_For_Products\Engine_Manuals\Transition\JEM2204-9_I&M_unsigned.docx
12.2 NEW TOLERANCES
(All Dimensions are in Millimetres)
Crankshaft
Mains Journals
47.938 to 47.918
Big Ends Journals 44.988 to 45.000
Thrust Face
56.95 to 57.05
Crankcase
Main Bearings
47.975 to 48.005
Cam Bearings
20.00 to 20.020
Cam Thrust Face
14.95 to 15.10
Lifter Bores
21.49 to 21.47
Crank Thrust
56.65 to 56.85
Con Rods
Big Ends
45.028 to 45.070
Little Ends
23.005 to 23.015
Length Between
74.485 to 74.498
Bore Radius
Cam Shaft
Journals
19.96 to 19.97
Valve Lift
6.900 to 7.100
Fuel Pump Lift
2.45 to 2.55
Thrust Faces
15.18 to 15.25
Lifter
Outer Diameter
8.965 to 8.990
Pistons
Dia
97.50 to 97.53 Height 64.00
– 65.50
Side ring Clearance 0.01 to 0.02
Pin Dia
22.990 to 23.000
Ring End Gap
0.400 to 1.000
Cylinder Bore
Dia
97.59 to 97.61
Length over flanges106.950
– 107.00
Valve
Stem Dia Inlet
6.970 to 6.990
Stem Dia Exhaust 6.970 to 6.990
Guide I.D. Inlet
7.040 to 7.050
Guide I.D. Exhaust 7.040 to 7.050
Spring Free length 39.5 to 42
Distributor
Shaft dia
14.940 to 14.970
Shaft Post I.D.
15.00 to 15.03
Shaft End Float
1mm
Note: Early engine components can exhibit slight variations to these new tolerances but
still be serviceable.