Doosan D55C-5 Service Manual

D439E Service Manual 2. Engine Mechanical System (D439E)
22
Items
Standard
([] indicates standard
diameter)
Limit
Corrective
action
Cylinder sleeve
lnner diameter
Out of roundness
Out of cylinderness
104.00~104.03mm
0.005mm
0.015mm
100.25mm
Below
0.01mm
Below
0.03mm
Repair with
oversize or
replace
Cylinder head
Flatness of cylinder head bottom
Length from cylinder head top to bottom
Below 0.1mm
94.9~95.1mm
0.2mm
94.6mm
Repair or
replace
Connecting rod
Connecting rod twist and distortion
Oil clearance
Connecting rod bearing
Free length of connecting rod bearing
Bearing crush (measured load 600kg)
Connecting rod endplay
-
0.04~0.099mm
-
34.53~34.57mm
0.15~0.45mm
0.05mm
0.2mm
Min.
69.5mm
-
0.6mm
Repair or
replace
Camshaft
Intake cam max. length
Intake cam min. length
Intake cam lilt
Exhaust cam max. length
Exhaust cam min. length
Exhaust cam lift
Camshaft endplay
Clearance between camshaft journal and
bushing
47.105mm
39.910mm
7.195mm
46.979mm
39.658mm
7.321mm
0.05~0.22mm
Stamp mark #1,2,3,4
([54.5] 0.04~0.09mm)
Stamp mark #5
([53] 0.04~0.09mm)
0.3mm
0.15mm
Replace thrust
plate
Crankshaft
Out of roundness of pin and Journal
Out of cylindricity of pin and Journal
Crankshaft distortion
(measured at journal f\~o 1 and No 5)
Crankshaft endplay
Below 0.01mm
Below 0.006mm
Below 0.02mm
0.10~0.26mm
0.03mm
0.03mm
0.05mm
0.4mm
Replace thrust
Plate
Crankshaft main bearing
Oil clearance (#1, 2, 4, 5)
Oil clearance (#3)
Free length
Bearing crush (measured load 500kgf)
0.036~0.098mm
0.056~0.118mm
-
41.061~41.101mm
0.15mm
0.15mm
Min69.5mm
Replace

Doosan D55C-5 Specifications

General

Brand	Doosan
Model	D55C-5
Category	Engine
Language	English