Lombardini LDW 502 User Manual

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FOCS Workshop Manual_cod. 1.5302.351_7° ed_ rev. 06
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Camshaft journals and housings - Dimensions (mm)
Note: The camshaft journal and cylinder head camshaft bore
dimensions are identical for all LDW-FOCS series engines
(LDW 502-602-702-903-1003-1204-1204/T-1404).
limit value
Camshaft lobe measurement
Use an outside micrometer gauge.
Intake / Exhaust / Injection camshaft lobe height - LDW 903
A1 = 1st cylinder intake camshaft lobe
A2 = 2nd cylinder intake camshaft lobe
A3 = 3rd cylinder intake camshaft lobe
I1 = 1st cylinder injection camshaft lobe
I2 = 2nd cylinder injection camshaft lobe
I3 = 3rd cylinder injection camshaft lobe
S1 = 1st cylinder exhaust camshaft lobe
S2 = 1st cylinder exhaust camshaft lobe
S3 = 1st cylinder exhaust camshaft lobe
H = 29,598÷29,650 mm (intake/exhaust camshaft lobe height)
H1 = 28,948÷29,000 mm (injection camshaft lobe height)
For 1204/T : H (intake) = 29,438÷29,490 mm,
H (exhaust) = 29,778÷29,830 mm.
All engines in the series (except LDW 1204/T) have intake exhaust
and injection cams with the same height of H and H1.
If wears on the cams exceeds by 0.1 mm the minimum value given
H and H1, replace the crankshaft.
Disassembly / Reassembly

Lombardini LDW 502 Specifications

General

Engine Type	Diesel, 4-stroke
Number of Cylinders	2
Fuel System	Indirect injection
Starting System	Electric start
Lubrication System	Forced lubrication with gear pump
Bore x Stroke	72 mm x 62 mm
Cooling System	Air-cooled
Displacement	505 cm³ (30.8 cu in)