Porsche Weissach Special (1980): Limited edition 911SC models · Limited edition 911SC models ......

24

1-14

Limited edition 911SC models


Compared to many other 911 series the 911SC had very few special versions. This was one of the consequences of the decision to cancel the 911 before the decision was reversed.

Porsche Weissach Special (1980):

A total of 408 'Weissach' limited edition models were produced and delivered to the American market only. This model was produced to honour the Porsche Motorsport team working in Weissach Germany.

With option number M439, a standard 911SC was converted and delivered with special paint. 50% were in Black Metallic and 50% in Platinum Metallic.

The interior upholstery was full leather in Doric Grey with Burgundy piping.

A flexible lip was added to the front air dam and a special whale tail rear spoiler installed at the rear.

Bilstein dampers were installed to provide a firmer ride.

Special Fuchs wheels with Platinum metallic painted centres were used irrespective of body colour. These wheels were fitted with Pirelli CN30 tyres of sizes 185/76VR15 front and 215/6UVRJ 5 rear, on 6JX15 and 7JX15 front and rear wheels respectively.

Other changes included: • A passenger door outside mirror.• Electric sunroof.• Fog lights below the front bumper. • An external electric aerial was fitted.• The stereo system was upgraded with door and rear

parcel shelf speakers.

0083302

X2 model year 1980 911SC Weissach Specials.Contributor: Kurt Fischer, Jim Giampolo, Robert Hall Jnr

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2-13Buyer’s guide

Paint code: (908-8-2). The paint code label’s location varies depending upon the model year of 911SC.

From model year 1978 to 1980 the paint code label is located on the front door jam (driver’s side).

For model year 1981 the paint code label can be found on the cross member in the engine compartment.

NOTE—The colour codes were changed from model year 1981 onwards.

For model years 1982 and 1983 the paint code label can be found on the right side of the luggage compartment.

Interior colour code: (YA)

This code provides the colour combination of the main interior components and the interior trim components. The 2-digit interior colour code combinations are not listed in this book. There are so many combinations it has not been possible to research and list them all accurately.

0083708

0083679

0083695

2-13Buyer’s guide

Paint code: (908-8-2). The paint code label’s location varies depending upon the model year of 911SC.

From model year 1978 to 1980 the paint code label is located on the front door jam (driver’s side).

For model year 1981 the paint code label can be found on the cross member in the engine compartment.

NOTE—The colour codes were changed from model year 1981 onwards.

For model years 1982 and 1983 the paint code label can be found on the right side of the luggage compartment.

Interior colour code: (YA)

This code provides the colour combination of the main interior components and the interior trim components. The 2-digit interior colour code combinations are not listed in this book. There are so many combinations it has not been possible to research and list them all accurately.

0083708

0083679

0083695

2-12

Buyer’s guide

The following table provides a cross reference for engine series identification codes, engine type, production model year and market.

The sportomatic transmission requires a specific engine type and can be identified by the number 9 used as the 4th digit of the engine serial number.

Engine identification codes638 . . . . . . . . . . . . . . . . . . .(930/03) 1978 manual ROW

6389 . . . . . . . . . . . . . . (930/13) 1978 Sportomatic ROW

628 . . . . . . . . . . . . (930/04) 1978 manual 49 state USA

658 . . . . . . . . . . . (930/06) 1978 manual California USA

618 . . . . . . . . . . . . . . . . . . (930/05) 1978 manual Japan

6189 . . . . . . . . . . . . . (930/15) 1978 Sportomatic Japan

639 . . . . . . . . . . . . . . . . . . .(930/03) 1979 manual ROW

6399 . . . . . . . . . . . . . . (930/13) 1979 Sportomatic ROW

629 . . . . . . . . . . . . (930/04) 1979 manual 49 state USA


619 . . . . . . . . . . . . . . . . . . (930/05) 1979 manual Japan


630 . . . . . . . . . . . . . . . . . . .(930/09) 1980 manual ROW

6309 . . . . . . . . . . . . . . (930/19) 1980 Sportomatic ROW

630 . . . . . . . . . . . . (930/07) 1980 manual 50 state USA

6308 . . . . . . . . . . . . . . . . . (930/08) 1980 manual Japan

631 . . . . . . . . . . . . . . . . . . .(930/10) 1981 manual ROW

641 . . . . . . . . . . . . (930/16) 1981 manual 50 state USA

6318 . . . . . . . . . . . . . . . . . (930/17) 1981 manual Japan

63C . . . . . . . . . . . . . . . . . . .(930/10) 1982 manual ROW

64C . . . . . . . . . . . . (930/16) 1982 manual 50 state USA

63C8 . . . . . . . . . . . . . . . . . (930/17) 1982 manual Japan

63D . . . . . . . . . . . . . . . . . . .(930/10) 1983 manual ROW

64D . . . . . . . . . . . . (930/16) 1983 manual 50 state USA

63D8 . . . . . . . . . . . . . . . . . (930/17) 1983 manual Japan

0083834

Clear view of the location of the engine serial number in relation to the oil temperature sensor.Contributor: Lee and Jay Heppe

0083680

Another view of the engine serial number on a disassembled engine.Contributor: Simon Gigney

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Buyer’s guide




6389 . . . . . . . . . . . . . . (930/13) 1978 Sportomatic ROW

628 . . . . . . . . . . . . (930/04) 1978 manual 49 state USA


618 . . . . . . . . . . . . . . . . . . (930/05) 1978 manual Japan


639 . . . . . . . . . . . . . . . . . . .(930/03) 1979 manual ROW

6399 . . . . . . . . . . . . . . (930/13) 1979 Sportomatic ROW

629 . . . . . . . . . . . . (930/04) 1979 manual 49 state USA


619 . . . . . . . . . . . . . . . . . . (930/05) 1979 manual Japan


630 . . . . . . . . . . . . . . . . . . .(930/09) 1980 manual ROW

6309 . . . . . . . . . . . . . . (930/19) 1980 Sportomatic ROW

630 . . . . . . . . . . . . (930/07) 1980 manual 50 state USA

6308 . . . . . . . . . . . . . . . . . (930/08) 1980 manual Japan

631 . . . . . . . . . . . . . . . . . . .(930/10) 1981 manual ROW

641 . . . . . . . . . . . . (930/16) 1981 manual 50 state USA

6318 . . . . . . . . . . . . . . . . . (930/17) 1981 manual Japan

63C . . . . . . . . . . . . . . . . . . .(930/10) 1982 manual ROW


63C8 . . . . . . . . . . . . . . . . . (930/17) 1982 manual Japan

63D . . . . . . . . . . . . . . . . . . .(930/10) 1983 manual ROW


63D8 . . . . . . . . . . . . . . . . . (930/17) 1983 manual Japan

0083834


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Buyer’s guide




6389 . . . . . . . . . . . . . . (930/13) 1978 Sportomatic ROW

628 . . . . . . . . . . . . (930/04) 1978 manual 49 state USA


618 . . . . . . . . . . . . . . . . . . (930/05) 1978 manual Japan


639 . . . . . . . . . . . . . . . . . . .(930/03) 1979 manual ROW

6399 . . . . . . . . . . . . . . (930/13) 1979 Sportomatic ROW

629 . . . . . . . . . . . . (930/04) 1979 manual 49 state USA


619 . . . . . . . . . . . . . . . . . . (930/05) 1979 manual Japan


630 . . . . . . . . . . . . . . . . . . .(930/09) 1980 manual ROW

6309 . . . . . . . . . . . . . . (930/19) 1980 Sportomatic ROW

630 . . . . . . . . . . . . (930/07) 1980 manual 50 state USA

6308 . . . . . . . . . . . . . . . . . (930/08) 1980 manual Japan

631 . . . . . . . . . . . . . . . . . . .(930/10) 1981 manual ROW

641 . . . . . . . . . . . . (930/16) 1981 manual 50 state USA

6318 . . . . . . . . . . . . . . . . . (930/17) 1981 manual Japan

63C . . . . . . . . . . . . . . . . . . .(930/10) 1982 manual ROW


63C8 . . . . . . . . . . . . . . . . . (930/17) 1982 manual Japan

63D . . . . . . . . . . . . . . . . . . .(930/10) 1983 manual ROW


63D8 . . . . . . . . . . . . . . . . . (930/17) 1983 manual Japan

0083834


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Buyer’s guide

In the luggage compartment:

Look for corroded components such as fuel tank mounting straps, screw heads, bolts and plumbing. Inspect for paint damage due to brake fluid leakage. Check under and around battery. Rust can be found here if battery has been overcharged and leaked.

Remove spare wheel and check for rust or damage underneath.

Look for obvious signs of repainting and over spray. Porsche painting is of the highest quality and is clear coated.

If the 911SC has been resprayed, a careful look will reveal the evidence. The best place to look for over spray is in hard-to-get-at places, such as forward of doors or under wheel arches. Look for different colours in these areas. A bad repaint job is immediate grounds to walk away. A good quality repaint should not deter you from purchasing, but it will allow a reduction of the price.

Look for signs of different shades of paint. Try not to view the 911SC in poor light, or in a garage or under artificial light. Get it out in the sunlight, step back a few metres and walk around. If there are different paints used at different times this will show up fairly easily, as will unprofessional repairs using body filler. A good place to check for this is under the wheel arches. Look to see if the paint is flaking. Porsche paint does not flake.

Luggage compartment with spare tyre removed.Contributor: Dan Whiteman

0083073

Checking to see if a 911SC has been repainted is best carried out in sunlight not inside buildings.Contributor: Gary Cuozzo

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Buyer’s guide

In the luggage compartment:

Look for corroded components such as fuel tank mounting straps, screw heads, bolts and plumbing. Inspect for paint damage due to brake fluid leakage. Check under and around battery. Rust can be found here if battery has been overcharged and leaked.

Remove spare wheel and check for rust or damage underneath.

Look for obvious signs of repainting and over spray. Porsche painting is of the highest quality and is clear coated.

If the 911SC has been resprayed, a careful look will reveal the evidence. The best place to look for over spray is in hard-to-get-at places, such as forward of doors or under wheel arches. Look for different colours in these areas. A bad repaint job is immediate grounds to walk away. A good quality repaint should not deter you from purchasing, but it will allow a reduction of the price.

Look for signs of different shades of paint. Try not to view the 911SC in poor light, or in a garage or under artificial light. Get it out in the sunlight, step back a few metres and walk around. If there are different paints used at different times this will show up fairly easily, as will unprofessional repairs using body filler. A good place to check for this is under the wheel arches. Look to see if the paint is flaking. Porsche paint does not flake.

Luggage compartment with spare tyre removed.Contributor: Dan Whiteman

0083073

Checking to see if a 911SC has been repainted is best carried out in sunlight not inside buildings.Contributor: Gary Cuozzo

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Rear Differential

40% lock limited slip differential:

The 911SC optional LSD is the standard ZF mechanical limited slip differential of the 40% locking type. This unit locks at 40% under load and under deceleration.

Principle of the locking value:

In a standard bevel gear differential without differential lock, the transmission driving torque is distributed evenly to both drive wheels. When cornering normally at part throttle, compensation of the wheel speed difference does not pose any problems. In extreme cornering situations and with different friction values between tyres and road surface, a 50/50 power transmission ratio may rapidly prove inadequate.

The LSD is used to ensure the transfer of torque or drive from a rear wheel which is spinning and has lost its traction to the other which still retains traction. This action slows the spinning wheel down and allows it to regain its traction. This allows the rear of the automobile to retain maximum available traction and reduces the possibility of a spin-out. How much torque is transferred and when depends on the locking value of the LSD.

The following table provides the possible torque or power distribution available at the rear wheels for the two types of differential installed in the 911SC.

NOTE—Change in torque distribution in a differential is bidirectional. Torque transfer can be from the left wheel to right wheel or vice versa.

40% Lock ZF, LSD, for the Porsche 915 type, 5-speed manual transmission have part numbers: 930 332 053 02 or 03.

Differential type

Locking value Possible power distribution

Standard open 0% 50:50

LSD 40% 30:70

0083808

40% lock Limited slip differential, fully assembled.

0083833

40% lock limited slip differential, disassembled showing the clutch type discs which differentiate a LSD from a standard open differential.

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Rear Differential









Differential type



LSD 40% 30:70

0083808


0083833


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Rear Differential









Differential type



LSD 40% 30:70

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Rear Differential









Differential type



LSD 40% 30:70

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Differential type



LSD 40% 30:70

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Interior

Front seats:

There were only two types of seats offered with the 911SC:

• Standard or comfort seat.• Sports seat.

The standard seat was offered in many different colours and with many different types of centre covering. These are all described in Appendix B. The standard seat design did not change over the life of the series. All options were offered on all versions except the Weissach special for the USA market and the Ferry Porsche special for the ROW market.

The sports seats were offered only as an option beginning in model year 1980. The seat design was changed slightly and a new sports seat was offered for model year 1981 to 1983.

Both the standard and sports seats in the 911SC are mechanically adjusted.

Rear seats:

From model year 1980 it became possible to have the rear seats upholstered in the same fabrics and colours as the front seats.

In model year 1983 when the Cabriolet was introduced a new set of rear seats was designed for it. These seats were shortened by 125mm (4.9in).

0083056

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Interior

Front seats:

There were only two types of seats offered with the 911SC:

• Standard or comfort seat.• Sports seat.

The standard seat was offered in many different colours and with many different types of centre covering. These are all described in Appendix B. The standard seat design did not change over the life of the series. All options were offered on all versions except the Weissach special for the USA market and the Ferry Porsche special for the ROW market.

The sports seats were offered only as an option beginning in model year 1980. The seat design was changed slightly and a new sports seat was offered for model year 1981 to 1983.

Both the standard and sports seats in the 911SC are mechanically adjusted.

Rear seats:

From model year 1980 it became possible to have the rear seats upholstered in the same fabrics and colours as the front seats.

In model year 1983 when the Cabriolet was introduced a new set of rear seats was designed for it. These seats were shortened by 125mm (4.9in).

0083056

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10-37Cruise control repairs

Engagement switch replacement:

Remove steering wheel and switch housing.

Remove engagement switch screws and remove switch.

Remove the switch from the wiring side connector.

The engagement switch installation procedure is the reverse of the removal procedure.

Servo unit replacement:

Locate the servo unit in engine bay, top left.

Remove the hose between the heater air connection and the blower motor.

Remove the electrical connectors from the servo and the solenoid assembly.

Undo the mounting screws, remove vacuum line (small hose) on the servo unit.

The vacuum hose is connected to an adapter near the throttle housing.

Undo the holder on the throttle lever.

Pull off bowden cable clip on the upper section of the holder and remove servo unit with cable still attached.

The servo unit installation procedure is the reverse of the removal procedure.

CAUTION—If the 911SC is fitted with air conditioning the duct on the driver’s side has to be undone and moved to access the connector.

CAUTION—Do not forget in air conditioned 911SCs to retighten the driver’s side ducting after the switch connector is reconnected.

0087218

0083980

Cruise control servo unit.Contributor: Craig Forrest

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Cruise control repairs

Cruise control repairsBased on a procedure contributed byDr. Ing. h. c. F. Porsche AG, Germany

Images by Robin Langford, (UK), Joel Rosenblatt (USA), Craig Forrest (USA) and R. Warren Cramer (USA).

Control unit replacement:

Remove rear cover in luggage compartment.

Remove the connectors from the control unit.

Remove the Phillips head screws and remove control unit.

Installation of the control unit is the reverse of the removal procedure.

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Porsche Weissach Special (1980): Limited edition 911SC models · Limited edition 911SC models ......

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