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Moko
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Joined: 12 May 2019
Posts: 78
Location: London


PostPosted: Fri Oct 04, 2019 8:33 pm    Post subject: Gear Box Mount Reply with quote

When I purchased my 996 and had a check done on it one of the recommendations on it was for the gearbox mount to be replaced .....any idea of how much it should cost to fix on a Tiptronic?

I very much doubt this is a job I could do myself as I only have a standard 2ton jack and stands so I’m thinking Porsche Indie.
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Alex
Le Mans
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Joined: 06 Mar 2014
Posts: 17065
Location: The Ribble Valley, Lancashire

2000 Porsche 996 Carrera 4

PostPosted: Fri Oct 04, 2019 9:13 pm    Post subject: Reply with quote

Get the power flex inserts and fit yourself. Easily doable on axle stands. Will cost about £30.
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Moko
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Location: London


PostPosted: Fri Oct 04, 2019 9:50 pm    Post subject: Reply with quote

Thanks Alex any videos/instructions that you know of... had a quick search but I couldn’t find anything on this procedure. Changing engine mounts loads gearbox none Dont know
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Alex
Le Mans
Le Mans


Joined: 06 Mar 2014
Posts: 17065
Location: The Ribble Valley, Lancashire

2000 Porsche 996 Carrera 4

PostPosted: Sat Oct 05, 2019 6:43 am    Post subject: Reply with quote

This is the one for a tiptronic:

https://www.powerflex.co.uk/product-details/Gearbox+Front+Mounting+Bush+Insert+Kit/12307.html

Sorry, I can't find any installation guides but I did mine on ramps on the drive and took 2 hours.
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jonnny
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Joined: 07 Mar 2016
Posts: 44



PostPosted: Sat Oct 05, 2019 7:09 am    Post subject: Reply with quote

Hi
This is something I have had recently replaced on my 996 C4S tip.
I replaced the whole unit following its removal as part of replacing the transfer box gasket. As I understand it worn gear box mounts, allowing the transfer box to move and wear the gasket can be the cause of the transfer box gasket to fail.
Also had the rubber doughnut changed at the same time. All in all approx 1100.00
I did consider the rubber inserts but as the indie had everything off to replace the gasket I took the opportunity to replace the original mount.
 
  
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C4pperS
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Joined: 04 Jan 2016
Posts: 91



PostPosted: Sat Oct 05, 2019 8:10 am    Post subject: Reply with quote

Just worth pointing out guys that the Powerflex inserts are there to firm up the factory mount, not fix a knackered mount.
If your original mount is shot then it needs replacing before you even consider the inserts.
 
  
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Moko
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Joined: 12 May 2019
Posts: 78
Location: London


PostPosted: Sat Oct 05, 2019 8:47 am    Post subject: Reply with quote

Thanks that makes sense the yellow inserts are just to support the original rubber mount....not completely replace it.

From the video I did find to replace the original mount you need a special tool to remove it and a press to put in the new rubber bushing thing.
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Nightrain QDUN4
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Joined: 21 Nov 2016
Posts: 79
Location: Aberdeenshire


PostPosted: Sat Oct 05, 2019 10:06 am    Post subject: Reply with quote

I did mine last year, easy job. Purchased a new mount to save time as I didn’t have a press.
£160 + vat inserted the yellow power flex, job done with no special tools.
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Moko
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Joined: 12 May 2019
Posts: 78
Location: London


PostPosted: Sat Oct 05, 2019 10:51 am    Post subject: Reply with quote

Is this the part you used?https://www.design911.co.uk/fu/prod126227/Porsche-997-Engine-Gearbox-Mount-99737503303/
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Nightrain QDUN4
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Joined: 21 Nov 2016
Posts: 79
Location: Aberdeenshire


PostPosted: Sat Oct 05, 2019 11:01 am    Post subject: Reply with quote

Yes that’s it, from same supplier too
Very Happy
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Moko
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Joined: 12 May 2019
Posts: 78
Location: London


PostPosted: Sat Oct 05, 2019 11:41 am    Post subject: Reply with quote

Why did you go for the yellow power flex parts as well as replacement of the mount?
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Nightrain QDUN4
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Joined: 21 Nov 2016
Posts: 79
Location: Aberdeenshire


PostPosted: Sat Oct 05, 2019 2:52 pm    Post subject: Reply with quote

I ordered the power flex before removing the mount, when I tried to put the inserts into my original mount they would not fit into the holes. I removed the mount and tried again with no luck and on closer inspection I could see the bushes were shot, so ordered a new mount with bushes and used the power flex inserts which slipped straight into place. The two rubbers at the ends will also be worn and the power flex inserts will replace the original parts and help support the bushes.
If you don’t purchase the power flex inserts you will need to order Porsche rubber end stops.
This made a noticeable difference when driving and also cured the small gearbox oil leak I had.
Hope this helps.....
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Moko
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Joined: 12 May 2019
Posts: 78
Location: London


PostPosted: Sat Oct 05, 2019 3:20 pm    Post subject: Reply with quote

Thanks that’s really helpful....saves me a lot of wasted time waiting for deliveries etc I will just buy the bracket and the Powerflex bits all at the same time.
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Nightrain QDUN4
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Joined: 21 Nov 2016
Posts: 79
Location: Aberdeenshire


PostPosted: Sat Oct 05, 2019 3:29 pm    Post subject: Reply with quote

Your welcome, this is mine fitted.
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Moko
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Joined: 12 May 2019
Posts: 78
Location: London


PostPosted: Tue Oct 08, 2019 7:30 am    Post subject: Reply with quote

Hi does anyone know the torque settings for the bolts involved in this job?

I’ve been struggling to find any information whatsoever on doing this job...downloaded the workshop manual and couldn’t find any information in the Automatic Transmission section so where should I be looking?

Thanks as always for any info it’s much appreciated by this enthusiastic beginner Laughing
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Alex
Le Mans
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Joined: 06 Mar 2014
Posts: 17065
Location: The Ribble Valley, Lancashire

2000 Porsche 996 Carrera 4

PostPosted: Tue Oct 08, 2019 7:31 am    Post subject: Reply with quote

Tight.
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Nightrain QDUN4
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Joined: 21 Nov 2016
Posts: 79
Location: Aberdeenshire


PostPosted: Fri Oct 11, 2019 5:31 pm    Post subject: Reply with quote

The below link might help you.

https://rennlist.com/forums/996-forum/868038-transmission-carrier-torque-specs.html

Sent PM also

Mark
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Moko
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Posts: 78
Location: London


PostPosted: Fri Oct 11, 2019 6:07 pm    Post subject: Reply with quote

Thanks.....also found this
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Moko
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Joined: 12 May 2019
Posts: 78
Location: London


PostPosted: Sun Oct 20, 2019 1:29 pm    Post subject: Reply with quote

Well tried to do the Gearbox Mount today.

Unfortunately I could loosen all the mounting bolts but I think due to the lack of clearance working on normal jack stands I just couldn’t get the bolts that go through the rubber bushing loose.

Weirdly also felt really woozy after working under the car which I think could have been claustrophobia...never experienced this before but it was really tight under the car Dont know

So anyone have suggestions of where I could the mount fitted preferably close to N London?
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Alex
Le Mans
Le Mans


Joined: 06 Mar 2014
Posts: 17065
Location: The Ribble Valley, Lancashire

2000 Porsche 996 Carrera 4

PostPosted: Sun Oct 20, 2019 3:03 pm    Post subject: Reply with quote

Any mechanic with a ramp and some spanners can easily do it.
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