Stuttgart Classica

Passionate about air-cooled 911s

Gearbox issues

3.2 CarreraJason Eaton

So the 915 gave up on me, not surprised as it took a lot of stick (pardon the pun).  During spirited driving 2nd gear decided it didn't want to go in at all.  I managed to limp it back to the unit and we drained the box to find a lot of dog teeth loose, I was surprised as there was no grinding prior to failure.  

A few dog teeth came out with the plug, the rest from the inspection plate removal.

A few dog teeth came out with the plug, the rest from the inspection plate removal.

Has to be done :D

Has to be done :D

The first and second gear dog rings had no teeth left and the synchro had fell out!  Luckily this was the only damage and it was a relatively cheap fix (for a 915 box).

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Now the box and engine is back in, she shifts into first a lot easier and the judder when pulling away in first has gone!  Engine speed increases quicker now with the aluminium clutch housing so I'll need to adjust my heel & toe.  I just want to get out and drive it before the weather gets rubbish!