GM Gasoline V6 90 Degree ユーザーズマニュアル
ENGINE APPLICATION MANUAL
GM Powertrain
Gasoline 4.3L V6 90 Degree
Revised: 08/15/2000
File: c:\data\manuales\v6-truck\am43v6#3.doc
Contact:Luis Nespolo - (248) 857-1558
Printed: 8/15/00
52
3.2.4.3.3
Coolant Operating Temperatures
This engine has been validated for continuous duty including continuous operation at
WOT with the coolant temperature under thermostat control (see thermostat start to
open and full open temperatures). Limited operation above thermostat full open
temperature is allowed as shown in the table below.
WOT with the coolant temperature under thermostat control (see thermostat start to
open and full open temperatures). Limited operation above thermostat full open
temperature is allowed as shown in the table below.
3.2.4.3.4
Flow Rates
Flow to the radiator and heater vary with pump speed, thermostat valve position, and
pressure drop across the heat exchangers.
pressure drop across the heat exchangers.
OPERATION
MAX ALLOWABLE TEMP
Extended Idle (Up To 30 Minutes) In Ambient up to >38 C
262.4 F
City Traffic Operation In Ambient
- Up To 109.4 F
237.2 F
- Up To 118.4 F
255.2 F
Grades
- Trucks At GCW, 7.2% Grade, 100 F, Ambient
250 F
- Passenger Cars At GVW, 7.2% Grade, 100 F , Ambient
250 F
High Speed Operation
- Passenger Cars At GVW, 167 kph, Up To 48 C Ambient
237 F
Soaks Following Grade Operation
262 F
Figure: 3.2.4.3.4 - I - Water Pump Flow Rates
RPM
L35
Condition
All Applications
Coolant Flow
GPM
2000
32.5
Road Load
2800
46.1
Road Load
3600
59.9
Road Load
1600
26.1
7.2% Grade
2400
37.7
7.2% Grade
2000
32.6
WOT
3000
49.5
WOT
4000
66.6
WOT
4200
70.1
WOT
4400
73.6
WOT
4600
76.5
WOT
750
12.1
Idling
1300
21.2
Parked
2200
36.0
Parked