Main Technical Data - FAW Jiefang Automotive 485 Operation & Maintenance Manual

1. Valve timing
Intake valve opens
Intake valve closes
Exhaust valve opens
Exhaust valve closes
Valve lash (at cold state)
Intake valve opens
Intake valve closes
2. Fuel-supply advance angle
3. Temperature and pressure values of the engine
(1) Exhaust temperature (℃)
At 15-minute rated power
At one-hour rated power
At 12-hour rated power
(2) Engine-oil temperature (℃)
(3) Water-out temperature (℃)
II. Main technical data
12°±2° before T.D.C.
38°±2° behind B.D.C.
50°±2° before B.D.C.
12°±2° behind T.D.C.
Intake valve: 0.28-0.33 mm
Exhaust valve: 0.28-0.33 mm
T.D.C.
B.D.C.
Fig. 1 Valve timing diagram
16°±1°
≤ 620
≤ 550
≤ 500
≤ 95
70～90, maximum.≤ 95
7
Exhaust valve closes
Exhaust valve opens
before T.D.C.