Where can I see the main input shaft on a G50?
 

To diagnose ecessive backlash in the drivetrain on my G50, according to one of the world's leading 911 gearbox experts, I need to get it in gear, rock the wheels backwards and forwards and take a look to see if the main input shaft is turning. If it is, the play is in the clutch (likely broken friction plate springs). If it's not, the backlash is in the gearbox or diff.

Since I don't have a workshop my porsche specialist mechanic got the car up in the air, popped off the transaxle side cover and took a look but he said it's not so easy to tell me how much of the travel is transmitted to the input shaft because [excusey type stuff I couldn't make out properly about how tricky it is]. He's not given me an answer, and I'm none the wiser whether my clutch friction plate springs have broken.

Despite not wanting to do the one thing I booked the car in for, he was really keen to give the car an inspection I didn't ask for and for me to do a couple of grand's worth of easy fettling jobs I could do at home off a Jack such as tightening up wheel bearings.

Does the Carrera 3.2 G50 have any other inspection cover that can be removed (with the gearbox still in the car) to give easy viewing of the main input shaft so I can counter his objections to doing the job I booked the car in for?

The situation is particularly frustrating because there aren't a lot of Porsche specialists near me and I've committed to two full days of travelling to get the car to him and get home, and then to get back out to him and drive it back when he's finished with it.

Thanks in advance.

It’s called the output shaft not input shaft and you should be able to use a small camera to look in there. I would find another mechanic if your uncomfortable, before it gets messy. Where located?

Severe off/on throttle backlash is usually the original rubber hub clutch disc breaking up. They're still out there.

In the UK.

I thought the output shaft would be the one taking the drive on to the diff and wheels whereas I'm talking the one bringing the drive in to the gearbox from the clutch.

Your terminology is correct. The input shaft mates to the clutch.

I’m with John Walker.

My bad I thought you where trying to check backlash at the diff.

Scary !!! 30 years old clutch.