Technical Data:
TD/TAD720-722, TAD730-733, TAD750/760
63
Group 20
Piston rings
Compression rings
Number of rings .................................................... 2
Piston ring clearance measured in groove, wear limit:
Upper compression ring (1) ................................ Keystone, no clearance
Lower compression ring (2) ................................ 0.17 mm
(0.067")
Piston ring gap measured in ring opening, wear limit:
Upper compression ring (1) ................................ 0.8 mm
(0.03")
Lower compression ring (2) ................................ 2.5 mm
(0.0984")
Oilscraper ring (3)
Number: ................................................................ 1
Width, including springcoil: .................................... 3 mm
(0.12")
Piston ring clearance. height: ................................ 0.1 mm
(0.0039")
Piston ring gap, wear limit: .................................... 1.15 mm
(0.045”)
Pistons
Number of piston ring grooves ............................... 3
Combustion chamber:
Diameter Ø ........................................................... 71
±0.1
mm
(2.795"
±0.0039"
)
Depth .................................................................... 16.66
±0.1
mm
(0.6559"
±0.0039"
)
Gudgeon pin diameter Ø ....................................... 42
-0.006
mm
(1.6535"
-0.0002"
)
Piston front marking
, according to picture: Flywheel symbol on the piston top faces the flywheel.
Guiding pins on the connecting rod, must face flywheel symbol on the piston.
1
2
3
Содержание TAD420VE
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