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The power rack and pinion steering system,has a rotary spool valve which
directs hydraulic fluid coming from the power steering pump to one side
or the other side of the rack piston. The integral rack piston is attached to
the rack. The rack piston converts hydraulic pressure
to
a linear force
which moves the rack left or right. The force is then transmitted through
the inner and outer tie rods to the steering knuckles, which turn the
wheels
If hydraulic assist is not available, manual control is maintained. However
under these conditions more steering effort is required.
4.6 LITER NORTHSTAR ENGINE
Displacement
...............................
.4.6L (279 cu.in.)
No. of Cylinders
................
32-valve DOHC 8
-
90 Degree V
Power (ACC. to S A E 51349)
...............
295 (bhp @ 6000 rpm
Torque (ACC. to S A E 51349)
............
290 (lbs. ft. @ 4400 rpm
.....................................
393 ( N m @ 4400 rpm
Power (ACC. to S A E 51349)
...............
270 (bhp @ 6000 rpm
Torque (ACC. to S A E 51349)
............
207 (lbs.
f t .
@ 4400 rpm
Bore
........................................
93mm (3.66 in.)
Stroke
......................................
.84mm (3.31in.)
Compression Ratio
...................................
10.3:l
Cylinder Heads
...............................
Cast Aluminum
Intake Manifold
........................
Die Cast Magnesium /
..........................
Thermoplastic Air Induction Tubes
Valve System
...................
Direct Acting Hydraulic Tappets
Exhaust Valve
................................
29mm (1.14 in.)
Firing Order
..................................
1-2-7-3-4-5-6-8
Engine Code 9
.....................................
220 (kW
1
@ 6000 rpm
.....................................
204(kW
1
@ 6000rpm
.....................................
300 (N-m
1
@ 4400 rpm
1
Engine Code Y:
Cylinder Block
......
Die Cast Aluminum with Iron Cylinder Bores
Intake Valve
..................................
33mm (1.29 in.)
Pistons
......................................
Cast Aluminum
Left Bank
..........................................
2-4-6-8
345
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