Dismantling and assembling transmission

911 Carrera 2 Automatic Transmission - Operation, Housing v Short legs must force on the ATF pan Short legs must force on the ATF pan Observe correct length, tighten to 8 Nm (6 ftlb) Hydraulic control unit with wiring harness The straight surface on the harness socket must point towards the outside Observe correct length, tighten to 8 Nm (6 ftlb) Press in to stop using a suitable mandrel Press in to stop, observing correct position 911 Carrera 2 Automatic Transmission - Operation, Housing

Dismantling and assembling 4th gear tower

911 Carrera 2 Automatic Transmission, Gears, Controls i Check for correct seating of the rectangular ring. Engage into hollow gear with a slight rotary motion For dismantling, refer to page 38 - 137 Make sure rectangular rings are located correctly. Rotate them slightly to move them into installation position For dismantling, refer to page 38-131 Fit with a rotary motion. The specified position is achieved when cylinder E rests against the copper angle disc For dismantling, refer to page 38-127...

Major Data at a Glance

Automatic four-speed sports transmission with integral hypoid final drive, with manual and automatic shift features. No. of gears 4 forward gears, 1 reverse Porsche model designation A 50.01 A 50.02 A 50.03 Spur gear drive 30 33 i 1.100 Final drive i 3.667 3.667 3.556 Control unit 8-bit microprocessor with external 32 KB EPROM memory Transmission unit overall weight 98 kg Extra weight 911 Carrera 2 vehicle with Tiptronic 34 kg Automatic section Initial filling approx. 9.1 I, ATF Dexron II D...

Removing and installing differential and drive pinion

Fresh Air Flap Vehicle

For dismantling, refer to page 39 -102 Pack space between dust lip and sealing lip with grease e.g. Shell 8420 and press in flush Replace. Pack space between dust lip and sealing lip with grease e.g. Shell 8420 . Press in to depth of 2.0 0.5 mm To drive out, use a plastic hammer to apply light blows on the drive pinion head Observe matching number, readjust if required

Removing and installing gear selecting system

Porsche 911 Tightening Torques

Disengage selector lever cable from deflection lever and undo guide tube. 4. Unscrew release button and pull off selector knob. 6. Disconnect cable valve body from switch plate only for keylock models . 7. Disconnect connectors for switch plate. 8. Unscrew four mounting screws M 6 and take out selector lever operator from above. Gear selecting system to body 10 Nm 7 ftlb 2. Press selector knob manually until it is up against the stop, making sure the twist...

Workshop Manual

964 Tiptronic Differential

Porsche Aktiengesellschaft The workshop manual is only for the internal use of the Porsche Dealer Organization. 1988 Dr. Ing. h.c. F. Porsche Aktiengesellschaft Technical Service Department D-7140 Ludwigsburg All rights reserved - Printed in Germany Engine, Cylinder Head and Valve Drive Starter, Power Supply, Cruise Control Differential, Transaxle System, All-Wheel Drive Automatic Transmission, Controls, Case Automatic Transmission, Gears, Shafts Brakes, Hydraulics, Regulator,...

Adjusting the preload of the spur gear taper roller bearings

Adjusting spur gear II intermediate gear 1. Determine and record dimension a e.g. 45.90 mm . 2. Fit complete spur gear II and determine dimension b e.g. 44.65 mm . Record measured value. 3. Determine shim thickness by deducting dimension b from dimension a and adding a constant value of 0.22 mm preload and thickness of compressed gasket . The constant value is 0.22 mm for all transmissions. Dimension a e.g. Dimension b e.g. Always round shim thickness up or down to the nearest 0.05 mm figure....

Troubleshooting the Tiptronic transmission mechanicalhydraulic section Introduction

The below troubleshooting chart for the mechanical hydraulic section of the Tiptronic is designed as a guideline for repair operations. The faults have been arranged in the way they are usually indicated by the customers. Deviations of the descriptions are possible and should be completed accordingly by the service personnel. If complaints about leaks are received it is recommended to determine the location of the leak as closely as possible before any sealing operations are started. Crack...

This is how the information is processed in the Tiptronic control unit

Porsche Transverse Acceleration Sensor

Adaption of shift characteristics transmission and torque converter shift characteristics TC characteristics r computer controlled maintenance of recommended max. engine speeds The Tiptronic control unit is located below the left-hand seat and is built into a housing that is slightly smaller than the DME control unit located in the same place. The following parameters are constantly supplied to the Tiptronic control unit Time for change of resistance at potentiometer No. of pulses at pole wheel...

Dismantling and assembling clutch B

911 Carrera 2 Automatic Transmission, Gears, Controls i Remove with Special Tool 9332 using a press Install with Special Tool 9330 1 using a press, checking for correct seating To loosen, apply compressed air across the oil feed bore and take out by knocking lightly on a wooden support Grease round seals use vaseline and press carefully into cylinder F, making sure the piston does not bind

Dismantling and assembling clutch A

Separate from cylinder by tapping lightly on a wooden support Remove with a suitable thrust piece e.g. plate of 9329 , using a press Install with a suitable thrust piece e.g. plate of 9329 , using a press Refit old discs or use new disc of the same To remove, apply compressed air across oil feed bore Grease sealing rings use vaseline and press carefully into cylinder, making sure the piston does not bind.

Dismantling and assembling differential

Differential 964 Carrera4

Threads must be dry and free from grease. Secure with Loctite 262, tighten to 85 Nm 63 ftlb Replace. Threads must be dry and free from grease. Install in correct position Separate from housing by applying light blows with a plastic hammer Observe matching number. Readjust if required Pull of with suitable puller, or remove ring gear and take out from inside through bores Heat to approx. 120 C and press on Heat to approx. 120 C and press on Dismantling and assembling differential...

Test point

transmission The sensor transmits the transmission speed. ECU compares it to the wheel speed. Tlptronic warning lamp comes on, transmission is in emergency mode. Possible faults Open circuit, short to ground, short to positive, loose connection Check with Tester 9288 actual values . Store fault as of engine speed 2800 rpm a Measure resistance between pin 2 and pin 38. Nominal value approx. 350 Ohms b Check that pin 2 und pin 38 are free from shorts to ground. - Check o.k. ECU faulty 2 Also...

Diagnosable Tiptronic control unit

A self-diagnosis feature with fault memory is built into the Tiptronic control unit to allow certain faults within the electronic control system of the Tiptronic to be detected and to be stored. To prevent detected and stored faults from being erased when the ingition is switched off, a permanent positive voltage is present at the control unit. Detected faults remain stored in the fault memory for at least 50 starts of the engine. Caution If the connector is pulled off the Tiptronic control...

Test point 0 K and L wire

Porsche 964 Tiptronic Wiring

The diagnostic connection between the ECU control unit and the tester is made across the K and L wires. If it is not possible to run a diagnosis on all systems, the following checks should be made 1 Continuity check refer to wiring diagram - L wire Pin 7 diagnosis socket to Pin 13 ECU connector - K wire Pin 8 diagnosis socket to Pin 51 ECU connector 2 Short to ground check refer to wiring diagram - L wire The voltage at pin 7 diagnosis socket should be gt 8 V when the ignition is switched on. -...

Faults that cannot be detected by selfdiagnosis

The ECU cannot detect and store all potential faults. If a fault is found and if no fault has been stored, the tester may be used to run a system check to indicate any faults that may be present. Some of these faults are stated below. No diagnosis possible, Test point 0 No diagnosis is possible if the diagnostic leads are faulty. If terminal 15 is inoperative, the system enters the mechanical-hydraulic emergency mode. The fault lamp does not come on. If terminal 30 is inoperative, all faults...

Dismantling and assembly notes Dismantling

Take Special Tool 9334 off the output shaft, lift the complete pack by the cylinder and place onto Special Tool 9314. 3. Turn over the complete pack on the output shaft and place on a suitable support e.g. Special Tool 9508 1 . 2. Take off sun wheel and planetary set. A Special Tool 9508 1 4. Take off cylinder F and E 1. Place preassembled output shaft on a suitable support e.g. 9508 1 . 2. Put steel and copper angle disc in place and fit cylinder E with a rotary motion. The teeth of the end...

St

Removing and installing rear transmission case Removing and installing rear transmission case 911 Carrera 2 Automatic transmission, controls, case 3 Replace, glue to case with a small quantity of grease vaseline Redertermine thickness if required refer to page 38-171 Pay attention to installation position of clutch A. Make sure that the square drive shaft rings are correctly fitted. Coat the drive shaft with a small quantity of grease in the area of the square rings. Must be checked and, if...

Dismantling and assembling output shaft and freewheel

Remove with suitable pliers and screwdriver Install with suitable pliers e.g. VW 161a Rotate to lift off along with freewheel cage Rotate clockwise to push onto Inner ring along with freewheel Mark installation position for reassembly. Press carefully out of outer ring Use Special Tool 9336 to place into outer ring

Dismantling and assembling selector mechanism

Porsche 964 Gearbox Bracket

Must return automatically to original position after operation Press on in correct position until properly in contact. Twisting lock must engage with lock on shift lever. Can only be taken out from below and with center console removed Must engage in recess in control plate Coat all sliding surfaces in low-temperature grease e.g. Shell S 6508 911 Carrera 2 Automatic Transmission, Operation, Housing Dismantling and assembling gear selecting system with keylock and shiftlock Tools Dismantling and...

Changing ATF fluid and cleaning the

Capacity approx. 9.5 I Change quantity approx. 3.5 I The ATF fluid must be changed and the ATF strainer cleaned every 40,000 km When changing the ATF fluid, the vehicle must be horizontal and the engine switched off. Drain ATF fluid, remove ATF pan and ATF strainer refer to page 38-109 . Thoroughly clean the strainer and pan. Fit the ATF strainer with a new O-ring. Tighten the fixing screws with 8 Nm 6 ftlb . Fit the ATF pan with seal. Tighten the fixing screws with 8 Nm 6 ftlb .

Technical data

Porsche 964 Oil Flow Diagram

Fully-automatic 4-speed planetary transmission Tiptronic Capacity, rear axle final drive approx. 0.9 I multi-grade transmission oil 75 W 90 API classification GL5 MIL-L 2105 B , optionally SAE 90 Capacity, automatic unit Total capacity approx. 9.5 I with converter Change quantity approx. 3.5 I ATF-Dexron II D Removing and installing the torque converter Removing 2. Secure converter against falling out with 1. Remove transmission. sPecial to ' 9325 2. Remove converter, with transmission in...

Removing and installing the intermediate plate

Porsche 964 Car Audio

911 Carrera 2 Automatic transmission, controls, case Gear wheel with tapered-roller bearings Note correct position for reinstallation Note correct position for reinstallation Remove with internal puller e.g. Schrem 60 - 70 Heat transmission cover to approx 120 deg. C and press in to stop Automatic transmission with final drive The spur gear drive is only available as a complete set intermediate plate, transmission cover and adjusted spur gears . No adjustment of the preload of the taper roller...

Dismantling and assembling gear selecting system with keylock and shiftlock

37 - 102n Dismantling and assembling gear selecting system with keylock and shiftlock 911 Carrera 2 Automatic Transmission - Operation, Housing Must return to home position automatically after it has been actuated Push up to stop in correct position. Twist lock must engage in cutout in selector lever Can only be removed from below with the center Bore of driver and relay shaft must match Shift into manual speed selection gate Coat all sliding surfaces with low-temperature grease e.g. Shell S...