1987 PORSCHE 944 automatic transmission

Engine Design Specifications
Design
Operating cycle
Lubrication
Cylinder block
Cylinder head
Valve operation
Camshaft drive
Crankshaft
Fuel injection 4-cylinder, in-line engine, front mount with two ba
lance-shafts
4-stroke
Pressure oil circulation from oil sump,
full flow filter
Light metal
Light metal
Overhead camshaft
(944 S: 2 overhead camshafts)
Spur belt drive
Forged, 5 main bearings
AFC (Air Flow Control) Power Train
Manual transmission
Gear ratio
1st gear
2nd gear
3rd gear
4th gear
5th gear
Axle ratio Gear ratio 944
3.600:1
2.125:1
1.458:1
1.071:1
0.730:1
3.500:1
3.889:1 Gear ratio 944 S
3.500:1
2.059:1
1.400:1
1.034:1
0.829:1
3.500:1
3.889:1 Gear ratio 944 Turbo
3.500:1
2.059:1
1.400:1
1.034:1
0.829:1
3.500:1
3.375:1
Clutch
Power transmission Single plate dry disc, hydraulically operated
Double constant velocity joints and drive shaft
Automatic transmission 944
Gear ratio 1st gear
2nd gear
3rd gear
Reverse gear
Axle ratio
Clutch 2.714:1
1.500:1
1.000:1
2.429:1
3.455:1
Hydrodynamic torque converter
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Filling Capacities
Engine oil With filter change approx. 6.34 (Turbo: approx. 6.87) U.S. qts. or 6 (Turbo: approx. 6.5) liters.
Check oil level with dipstick a few minutes after e ngine has stopped. The difference between
the max. and min. marks on the dipstick is approx. 1 U.S. qt. or 1 liter.
Only use brand name oil which has been tested and a pproved by Porsche.
Your authorized Porsche dealer will be glad to advi se you.
Porsche does not recommend the use of oil additives . See also "Engine Oils".
Cooling system with heating
Approx. 8,2 U.S. qts. or 7,8 liters. Factory filled to -31°F (-35°C). Only use phosphate-free
anti-freeze containing ethylene glycol recommended for aluminum engines and radiators.
Manual transmission
Approx. 0.53 U.S. gal. or 2.0 liters. Use hypoid oi l SAE 80 labeled "For Service API/GL4 or
Mil-L 2105".
Automatic transmission with
torque converter Approx. 1.72 U.S. gal. or 6.5 liters ATF Dexron®. At oil c hanges 3 U.S. qts. or 2.8 liters are
required.
Differential of automatic transmission
Approx. 1 U.S. qts. or 1 liter hypoid oil SAE 90 ac cording to API classification GL 5 or
Mil-L 2105 B.
Power steering
Approx. 0.63 U.S. qts. or 0.6 liter ATF Dexron®
Fuel tank Approx. 21.1 U.S. gals, or 80 liters including a re serve of 2.1 U.S. gals, or 8 liters.
Unleaded fuel only! Minimum octane rating 944 91 RO N (87 CLC or AKI ((R+M)/2) rating on fuel
pumps in U.S.A.), 944 S / 944 Turbo 95 RON (90 CLC or AKI ((R+M)/2) rating on fuel pumps in U.S.A.)
Brake fluid Approx. 0.42 U.S. pint or 0.2 liter. Only use brake fluid conforming to specifications
SAE J 1703, DOT 3 or DOT 4.
Windshield and headlight washer system
Approx. 1.59 U.S. gals, or 6.0 liters.
Refrigerant for air conditioning Approx. 33.5 oz or 950 g. Refrigerant R 12 (CCI2F2)
Cooling system mixing chart
(Approximate values)
Anti-freeze-Water
Consult your authorized dealer about
the approved anti-freeze mixtures. Temp, down to
-13° F (-25°C) -23° F (-30° C) -31° F (-35° C)
Anti-freeze
40%
45%
50% Water
60% 55% 50%
Anti-freeze

3.1 liters / 3.3 U.S. qts.3.5 liters / 3.7 U.S. qts.3.9 liters / 4.1 U.S. qts.
Water
4.7 liters / 5.0 U.S. qts.
4.3 liters / 4.5 U.S. qts. 3.9 liters / 4.1 U.S. qts.
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Wheel Alignment
Wheel camber*
Toe-in*
Toe angle difference*
Caster*
* at DIN curb weight Front
Rear
Front
Rear
-20' ± 15',
maximum difference left to right 20'
-1° ± 20', maximum difference left to right 30'
+ 10' ±5'
0° ± 10', maximum difference left to right 20' at 20° to left and right -1° ± 20'
2,5° + 30' - 15'

Brake System
Hydraulic dual circuit brake system with
front/rear brake circuits
internally ventilated disc brakes front and rearBrake power assist
Parking brake acting on rear wheels

Chassis, Suspension
Unitized construction
Front suspension
Rear suspension
Shock absorbers
Stabilizers
Independent coil/shock absorber struts, positive ki
ng-pin offset
Independent - diagonal arm, one torsion bar each
Double acting hydraulic shock absorbers, front and rear
Diameter - front: 20 mm (optional 21,5), Turbo: 22. 5 mm or 24 x 3.7 mm
rear: 14 mm or 20 mm (optional), Turbo: 18 mm
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Performance*

Maximum speed
Acceleration 0-60 mph Time at end 1/4 mile*
Time at end 1/4 mile*
Manual transmission944
131 mph (210 km/h) 8.3 seconds
16.2 seconds
30.1 seconds
944 S

142 mph (228 km/h)
7.7 seconds
15.4 seconds
27.8 seconds
944 Turbo

152 mph (245 km/h)
6.1 seconds
14.4 seconds
26.0 seconds
Automatic transmission944
131 mph (210 km/h)
9.8 seconds
17.2 seconds
17.2 seconds

* At curb weight and half-load capacity, excluding optional equipment and accessories.

Climbing Performance

1st gear
2nd gear
3rd gear
4th gear
5th gear
Manual transmission944
approx. 61%
approx. 33%
approx. 21%
approx. 14%
approx. 8%
944 S

approx. 62% approx. 36%
approx. 22%
approx. 14%
approx. 9%
944 Turbo

approx. 62%
approx. 49%
approx. 30%
approx. 20%
approx. 14%
Automatic transmission944
approx. 36%
approx. 18%
approx. 10%

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Transmission Diagram Automatic 944
123

Transmission Diagram Manual gearbox
944S
124

Transmission Diagram Manual gearbox 944Turbo
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Gas Station Information Fuses and relays
The fuses are located within the
central electric box at the rear left
of the e
ngine compartment in front of the pivot point for the left windshield wiperarm (under black plastic cover). The use of the
fuses and relays is shown in a
list on the inside of the cover of
the fuses and relays.
Fuel recommendation
944: 91 RON (87 CLC or AKI
((R+M)/2) rating on fuel pumps in
U.S.A.) minimum.
944 S / 944 Turbo: 95 RON (90
CLC or AKI ((R+M)/2) rating on
fuel pumps in U.S.A.)
UNLEADED FUEL ONLY.
Fuel tank capacity: 21.1. U.S.
gals, or 80 liters.
Federal law prohibits use of
leaded fuel in this vehicle. Starting Manual transmission: Only start in Neutral, clutch pedal depressed. Automatic transmission:
Start in Park.
Starting cold or hot engine
Just turn ignition key. No need to
depress accelerator pedal.
Emergency starting
Car must not be started by
pushing or towing.

Seat adjustment

Pull lever in front of seat.
Backrest

Lift lever on side of seatback.
Fuel cap

Located in the right rear panel. To close, turn cap clockwise to stop. 126

Engine hood release
Pull lever on left underneath
dashboard. Disengage safety
catch and lift engine hood up.
Battery
In cowl area in engine
compartment. Check each cell.
Top up with distilled water.
Never disconnect battery while
engine is running. It can ruin
the alternator.
Before connecting quick-charger,
battery must be disconnected. Brake fluid reservoir
Level should be between MIN and MAX marks.
Only use new brake fluid
according to SAE
recommendation J 1703, DOT 3
or DOT 4 and conforming to Motor Vehicle Safety Standard 116.
Do not use silicone base brake
fluid (DOT 5). Even the smallest
traces may cause severe
corrosion in the brake system.
Coolant reservoir
Antifreeze must remain in cooling
system all year round.
Coolant level should be between
minimum and maximum mark
when engine is cold. Always add antifreeze and water in ratio specified under "Filling
Capacities".
Use quality antifreeze containing
ethylene glycol.
Windshield and headlight
washer reservoir

1.6 U.S. gal. or 6.0 liters
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Rear Lid
Unlock by turning door/ignition
key counter-clockwise or
operating the control switch.


Engine oil dipstick

Check oil level a few minutes after engine has stopped. Level should
be between upper and lower
marks on dipstick. Difference
between marks is approx. 1 U.S.
qt. or 1 liter.
WARNING
Before checking anything in
the engine compartment, let the
engine cool down. The fan
blades will rotate
spontaneously (even with
ignition off) until coolant
temperature drops.
Engine oil Always use quality oil labeled "API" Service "SE or SF". Details
under "Engine Oils" .
With filter change approx. 6.34 U.S. qts. (6.0 lite rs)
944 Turbo: approx. 6.87 U.S. qts. (6.5 liters)
Check oil level as described on "Engine oil level".

Manual transmission oil with differential
Hypoid oil SAE 80 according to API classification G L 4 or Mil-L 2105.

Automatic transmission
ATF lubricates torque converter and transmission. U se ATF "Dex-
ron®" only. Quantity at oil change: approx. 3 U.S. qts. or 2.8 liters.
Check ATF level visually through transparent reserv oir at rear end of
transmission housing.
Difference between marks approx. 1 U.S. pint or 0.4 liter. Check ATF
level when ATF is warm, with engine idling, selecto r lever in Neutral
and car on level ground.
For differential use oils API/GI 5 (or Mil-L 2105 B ), viscosity SAE 90.


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