Although less famous than the Porsche 911, the Porsche 928 is one of the most legendary series series, thanks to its revolutionary revolutionary design and its numerous technical innovations.
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Gearbox broken? We help you identify and order your model
During its 17-year history, the Porsche 928 has undergone several restylings which led to an evolution of its powertrain. The first models equipped with 4.5 L V8 engines had a maximum power output of 240 horsepower. By 1984, this power had risen to 310 horsepower thanks to the 4.7 L V8 engine. In 1992, for the last redesign of the model, Porsche equipped the Porsche 928 with a 5.4 L V8 engine engine developing 350 hp.
Despite the engine being mounted at the front of the vehicle, the Porsche 928's gearbox remains located on the rear axle, with a rigid rigid drive shaft (the famous torque tube, or torque tube) provides the link between the two. FollowEDEN BOITES 's guide to to learn how to maintain and repair the gearbox of your Porsche 928!
The two Porsche 928 gearboxes
From launch to retirement, the Porsche 928 is equipped with a G28 5-speed manual gearbox. Over the years, there have been a few modifications to the design, but the gearbox has remained the same.
At first glance, its operation seems identical to that of a conventional mechanical gearbox. However, the gearbox's distance from the engine and the transaxle transmission transmission requires mechanical connections and a linkage system.
The cables extend the length of the vehicleThis can affect the precision of gear changes. As a result, Porsche's engineers have paid particular attention to the linkage, which has been designed to prevent bending or relaxation of this linkage from interfering with the transmission's smooth operation.
The G28 manual gearbox is available on all models in thefrom the 1977 Porsche 928 4.5 V8 240 hp to the Porsche 928 GTS 5.4 350 hp 1995.
At the same time, the Porsche 928 is also available with a Mercedes-Benz 722.3 4-speed automatic transmission automatic transmission. This torque converter features the same transaxle transmission characteristics as the manual gearbox.
How to service your Porsche 928 gearbox
The transaxle configuration requires maintenance of the wiring system. Particular care must be taken to avoid wear and tear. It is also essential to carry out regular and precise linkage adjustments.
To reduce the risk of wear, you should also maintain a constant level of transmission fluid level fluid level. Add gearbox oil if necessary, and have the oil changed. oil change every 100,000 kilometers or so.
Finally, a regular inspection by a professional is recommended. He or she will check the mechanism for general wear and tear, and if necessary replace damaged components before a malfunction occurs.
How to repair the Porsche 928 gearbox
Repairing the mechanical or automatic gearbox on a Porsche 928 presents a number of difficulties. First of all, access to the gearbox is not easy: the vehicle has to be raise the vehicle and held in this position using sturdy sturdy stanchions.
The next step is to remove the gearboxafter disconnecting the various connections, including the drive shaft. It may also be necessary to completely dismantle the driveshaft.
Finally, check the various components for for signs of damage, d'wear or leaks. Replace the defective part, then reassemble. It is imperative to ensure perfect calibration of the torque tube. The final test should ensure that the vehicle is working properly.
As you can see, this is a highly complex operation, particularly given the rear position of the gearbox. Consequently, we recommend that you entrust it to a specialistespecially as some special spare parts are hard to find these days.
Opt for a replacement gearbox for your Porsche 928!
A specialist will also be able to advise you on to replace the automatic or manual gearbox of your Porsche 928 if it is too damaged, or if the part to be replaced is unavailable or too expensive.
To find a Porsche gearbox gearbox at the best pricefirst check your vehicle number, then visit the website ofEDEN BOITESa specialist in reconditioned gearboxes in France.
Thanks to our standard exchange gearboxyou benefit from particularly competitive prices and numerous advantages (trade-in of your old gearbox and 12-month warranty warranty).
Last but not least, our experience and know-how guarantee you equipment in perfect conditionrefurbished and tested by experts. Simply ask us for a free, no-obligation quote to find out about our prices!
