Technical Data

Clutch: Single plate, dry clutch with diaphragm springs.

Push-release version. Connected to flywheel. Pressure plate MF 215 K (Fichtel & Sachs). Clutch disc 215 PSD (Fichtel & Sachs)

Manual transmission: 5 bevel tooth forward gears

1 reverse gear


1st gear 2nd gear 3rd gear 4th gear 5th gear Reverse gear

Final drive

= 3.6000) = 2.1250) = 1.3600) = 0.9666) = 0.7297) = 3.5000)


Transmission weight without oil 55 kg

Oil volume 2.6 liters

Oil grade SAE 80 gear lube according to

Specification G L 4 (MIL-L 2105)

Remarks Highly alloyed gear lubes (GL 5)

would damage the synchronizers and are not suitable for this manual transmission.

1 Crankshaft

2 Flywheel

3 Single dry plate clutch

4 Shift lever base

5 Noise and vibration damper

6 Shift lever

7 Shift boot

8 Shift rod

9 Vibration damper

10 Flexible mount

11 Guide bearing in central tube

12 Central tube

13 Drive shaft

14 Connecting sleeve

15 Five speed transmission

Porsche 924 Torque TubePorsche 924 Drivetrain

1 Input shaft

2 Seal tube

3 Vent

4 Needle bearing

5 Selector shaft

6 Operating sleeve, 3rd and 4th gear

7 Transmission case

8 Reverse gear operating lever

9 Gear carrier

10 Cylindrical roller bearing

11 Cover

12 Operating sleeve, 5th gear

13 Four point bearing

14 Cap

15 Taper roller bearing

16 Operating sleeve, 1st and 2nd gear

17 Spline for reverse gear

18 Drive pinion

19 Taper roller bearing

Roller Bearing Crankshaft Porsche

15 16 1


v /

> '■!>■

15 16 1

Transmission Needle Bearing

17 18 19

The input shaft (1) runs on three bearings. A needle bearing (4) is located in the transmission case (7). The center bearing in gear carrier (9) is a cylindrical roller bearing (10). The four point grooved ball bearing (13) in the end cover (11) is designed as a guide bearing.

The chief load for this bearing is the axial force, which occurs when the teeth of the gears engage while accelerating or coasting.

This bearing also absorbs any axial forces of the drive shaft.

The drive pinion (18) runs on two taper roller bearings (15 and 19), which take the axial forces of the drive pinion.

The drive pinion is adjusted with shims, which are installed behind the outer races of both taper roller bearings.

The 3rd and 4th fixed gears are not joined on the drive pinion by keys. The torque is transmitted by the press-fit between gear and shaft.

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