Porsche 928 Workshop Manuals

Porsche 928 workshop manuals contain all of the technical data, drawings, procedures and detailed instructions necessary for autonomous repair and maintenance of your vehicle. Although designed specifically for workshops, these Porsche manuals may also be utilized by do-it-yourself car enthusiasts.

1986 models featured improved suspension settings and larger brakes with four piston callipers (except in North America ). Also incorporated was a more durable torque tube and different ignition map for US cars.

Engine

The Porsche 928 was a revolutionary car of its time. One of the first rear-wheel drive sports cars sold with a front-mounted engine and equipped with fuel efficient V-8 technology, this groundbreaking sports car proved so successful it even earned European Car of the Year status for 1978; an achievement rarely awarded to mainstream sedans or hatchbacks.

Porsche executives were searching for a replacement model to the 911, as its economic life cycle had come to a close. Ernst Fuhrmann sought to expand their offerings with an eco-friendly grand touring car; thus the Porsche 928 was created and quickly became a bestseller upon its debut.

The 928 featured a water-cooled V8 engine mounted to its front axle that drove rear wheels. Originally it displace 4.5 L and produced 240 PS in Europe while Smog equipment reduced it to 219 HP for North America. Furthermore, this vehicle could come equipped with either a five-speed manual transmission or four-speed automatic transmission depending on which was chosen as its drive train option.

Porsche made only minor alterations during its 18-year production run of this car, mostly to increase fuel efficiency and reliability, as well as redesign its interior and exterior and introduce Dark Blue Metallic as a new color option.

In 1984, Porsche sent their 928 S to Brumos Racing team in Florida to compete in the 24 Hours of Daytona race. Although instructed not to modify it in any way, the drivers found ways to make it more stable on Daytona’s high banks – leading them to victory and earning them an invite back for next year’s competition.

Transmission

The 928 was a rear-wheel drive grand tourer designed to offer greater comfort than its more exaggeratedly sporty sibling, the 911. Equipped with a powerful engine producing over 200 horsepower, which provided both speedy performance and smooth riding despite its heavy weight. As such, this popular model continued selling well until 1980 saw the release of the faster 924 Turbo model which offered increased acceleration capabilities.

At times, this Porsche may encounter problems such as whining noises during gear changes, an increase in transmission noise when shifting between gears, or an unpleasant jolt when engaging selector lever positions D and R. If these issues remain uncorrected, further faults could occur with its systems; one approach would be consulting its manual for solutions to its various faults.

When your transmission is leaking, drain and flush it of fluid before cleaning the bleed valves if necessary. To bleed brakes, start by connecting clear plastic hoses to each of the caliper bleed valves before placing one end into a container filled with brake fluid. Have your helper pump the brake pedal several times before holding it down; open all bleed valves so fluid flows freely into this container, starting with one closest to your master cylinder and moving down from there. Repeat this process with each subsequent one starting nearer the master cylinder.

If your transmission fluid levels have dropped too low, replenish them from your reservoir as soon as possible and also check its levels in your transmission pan as sitting fluid may become contaminated with moisture over time.

Brakes

If you plan to drive a Porsche 928, it is crucial that you understand its brakes in order to avoid unnecessary wear on the brake pads and maintain optimal performance. Workshop manuals offer detailed information on parts and procedures necessary for replacing brake pads – whether novice or expert!

This comprehensive 51 volume workshop service manual set is an absolute necessity for any Porsche 928 owner. Packed with highly detailed information and diagrams, this manual covers everything from engine maintenance and transmission repair, power steering, suspension setup and headlight replacement; to electrical system troubleshooting tips as well as ways to keep your vehicle working in excellent condition.

In 1978, Porsche 928 was unveiled and won European Car of the Year honors against BMW 7 Series and Ford Granada models – an extraordinary accomplishment given that this exotic sports car was not considered mainstream family sedan at that time.

Over its 18-year production run, the Porsche 928 underwent various changes and modifications to both its design and engine. Some were subtle while others more drastic; significant ones occurred between 1987 and 1989 when a major facelift and more powerful engine were implemented.

As well as replacing the air filter regularly, it’s advisable to regularly inspect your brake pads. Following the maintenance and care recommendations in your manual is key to getting optimal performance from your Porsche 928; its brake pads were specifically designed to prevent fade and reduce wear; replacing these regularly prevents premature failure of brakes.

Electrical

The Porsche 928 workshop manuals provide a thorough guide of all its electrical systems, enabling technicians to quickly diagnose any problems and get back on the road more quickly. Each manual contains step-by-step instructions, schematic diagrams and charts making them easy for technicians to follow quickly while providing information such as torque settings, fluid capacities and more.

The 928 featured an engine located at the front that drove its rear wheels via a five-speed manual transmission, creating an ideal weight distribution and luggage area behind its seats. Furthermore, this car featured two folding back seats suitable for short trips as well as children.

After three years of production, Porsche launched the 928 S for North American markets. This package featured lookalike bodywork and 16-inch flat disc wheels with sport springs; available between 1981 and 1982 for both coupes and convertibles, it boasted an improved 4.7 L engine that produced 221 kW (296 HP).

It remained unchanged until 1985, when a 32v engine with higher compression was fitted along with twin distributors using EZK ignition for European markets – known as S/S2, this model produced an estimated 306 horsepower (224 kW or 306 bhp).

The 1991 GTS marked the final update to the 928 family with its 5.4 L, 350 horsepower (280 kW; 345 bhp) engine – it was also the fastest production 928 to date! Other changes included an RDK tire pressure monitoring system, digital trip computer with warning system in dashboard, piston oil squirters for automatic transmissions, as well as piston pressure monitors to track tire inflation pressure levels.

Fuel Pump

The fuel pump is an integral component of the Porsche 928. It ensures a steady supply of gasoline to the rear fuel injectors and prevents stalling or hesitation as gas enters your engine. To keep your pump working effectively, be sure to fill your tank regularly and change out filters as directed; otherwise it could fail over time.

An improperly functioning fuel pump can create numerous issues for your vehicle. It may reduce performance by slowing the start and ride times and potentially leading to leakage of gasoline; additionally, diagnosing such an issue requires visiting a professional mechanic for diagnosis purposes.

When diagnosing a fuel pump problem, start by inspecting its fuse box to see if any fuses have blown. Next, use a multimeter to monitor voltage at various electrical components; if its levels fall below what should be expected, replace batteries as necessary or call in professionals for inspection of wiring issues.

In 1978, Porsche unveiled their inaugural 928, featuring a front-mounted, water-cooled V8 engine displacing 4.5 L. It produced 237 PS (177 kW; 237 horsepower) while North American cars produced only 219 HP (163 kW; 222 horsepower). It won the European Car of the Year award, beating mainstream hatchbacks and sedans from major manufacturers. By 1982, however, Porsche redesigned and added new models – its exterior received more aggressive styling while available sports packages offered with larger rear spoilers; improved brakes; more powerful engines. It won European Car of the Year again!