Garage, Galley & Hangar
GG&H
Technical Owner's Manual
Porsche 911FIG. 1
PORSCHE
Porsche 911
The Air-Cooled G-Series, 1974-1989: A Complete Owner's Reference
REV 1.0 · 185 PP
GERMAN SPORTS CAR
GARAGE, GALLEY & HANGAR
9 chapters · 40-term glossary · 88-entry index
German Sports Car · Porsche

Porsche 911

Sixteen model years of impact-bumper 911, from the 2.7 that arrived in 1974 to the last Carrera 3.2 of 1989, with the 930 Turbo running alongside them. An honest owner's reference to the air-cooled flat-six and the G-Series chassis, covering K-Jetronic and Motronic management, the chain tensioners that can destroy a pre-1984 engine without warning, the head studs that pull out of a magnesium case on 1974 to 1977 cars, the 915 gearbox faults that only show on a cold start, and the galvanising that splits this generation into cars that survive and cars that do not.

Hardcover $149 · digital book $29
Customize it to my vessel · $260 →Read a free sample →

The digital edition is ready to read the moment you buy. The hardcover is printed to order and ships in about two weeks.

A sample of what's inside

Specifications

Engine2.7L, 3.0L or 3.2L air-cooled flat-six; 3.0L or 3.3L turbocharged (930)
Power150 to 231 bhp naturally aspirated; 260 to 300 bhp for the 930 Turbo
Drivetrain915 or G50 five-speed manual, four-speed 930 gearbox, rear-wheel drive
Kerb weight1,075 kg (911 2.7, 1974) to about 1,300 kg (930 Turbo 3.3)
Used marketRoughly $58,000 for a good SC, about $79,000 to $85,000 for a strong Carrera 3.2, G50 cars adding $10,000 or more

Known issues, covered honestly

  • Camshaft chain tensioners on any pre-1984 car: why the original units fail without warning, what the pressure-fed retrofit is, and why it is the most important line in a service history
  • Head studs pulling out of the magnesium crankcase on 1974 to 1977 2.7 litre cars, how that differs from a Dilavar stud failure, and what a permanent repair involves
  • The 915 gearbox: second and third gear synchromesh, and the cold-start test that separates worn synchros from rounded dog teeth
  • Corrosion, and why a fully galvanised shell still rots where you cannot see it, plus a market where one popular price index is corrupted by impossible records

…and the full survey guide, service schedules, systems, and parts sourcing in the complete volume.

Custom Edition

Make it your boat.

We fold in your year, your engine, your electronics and refits, your hull number, and your vessel name and your own boat's photo on the cover. The book stops describing the boat that left the factory and starts describing the one in your slip.

$260
personalized to your vessel