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Transmission tunnel grommets! #516345
05/06/18 12:08 PM
05/06/18 12:08 PM
Joined: May 2018
Posts: 12
Barnstaple UK
A
Adrian Bott Offline OP
New to Talk Morgan
Adrian Bott  Offline OP
New to Talk Morgan
A

Joined: May 2018
Posts: 12
Barnstaple UK
Hello there,
I have just bought a 1992 4/4 and am quite amazed to find that there are no transmission tunnel grommets fitted to the numerous inspection hole openings. Can anyone shed some light on this please as it appears none have ever been fitted from the factory? Kind regards, Adrian.

Re: Transmission tunnel grommets! [Re: Adrian Bott] #516346
05/06/18 12:24 PM
05/06/18 12:24 PM
Joined: Apr 2008
Posts: 8,821
Gloucestershire, UK
Hamwich Offline
Needs to Get Out More!
Hamwich  Offline
Needs to Get Out More!

Joined: Apr 2008
Posts: 8,821
Gloucestershire, UK
Originally Posted By Adrian Bott
Hello there,
I have just bought a 1992 4/4 and am quite amazed to find that there are no transmission tunnel grommets fitted to the numerous inspection hole openings. Can anyone shed some light on this please as it appears none have ever been fitted from the factory? Kind regards, Adrian.


I take it you mean the gearbox cover rather than the transmission tunnel? The transmission tunnel doesn't have any inspection holes in it as far as I'm aware, at least mine doesn't.

As for the inspection holes in the gearbox cover, I have only ever seen Gaffa Tape being used to cover them.


Tim H.
1986 4/4 VVTi Sport, 2002 LR Defender, 1957 R4 CV, 2005 Ferrari Vipar
Re: Transmission tunnel grommets! [Re: Adrian Bott] #516372
05/06/18 05:44 PM
05/06/18 05:44 PM
Joined: Apr 2014
Posts: 4,583
Llanelli
Ray Offline
Part of the Furniture
Ray  Offline
Part of the Furniture

Joined: Apr 2014
Posts: 4,583
Llanelli
There is often a small round metal plate hanging by one selftapper.


.+8 Now gone for a 1800 4/4. Duratec in bright yellow.
Re: Transmission tunnel grommets! [Re: Adrian Bott] #516434
05/06/18 09:25 PM
05/06/18 09:25 PM
Joined: May 2018
Posts: 12
Barnstaple UK
A
Adrian Bott Offline OP
New to Talk Morgan
Adrian Bott  Offline OP
New to Talk Morgan
A

Joined: May 2018
Posts: 12
Barnstaple UK
There are 4 apertures but no grommets at all! I can't understand why they haven't been fitted at the factory. Very strange!

Re: Transmission tunnel grommets! [Re: Hamwich] #516436
05/06/18 09:31 PM
05/06/18 09:31 PM
Joined: May 2018
Posts: 12
Barnstaple UK
A
Adrian Bott Offline OP
New to Talk Morgan
Adrian Bott  Offline OP
New to Talk Morgan
A

Joined: May 2018
Posts: 12
Barnstaple UK
Thanks Tim, yep gearbox cover. There are 4 apertures that are uncovered. I guess I will get some grommets to fit but there is an oval aperture that the speedo cable comes through. No chance of making a grommet or successfully using 'gaffer' tape in that case. I'll keep trying to figure something out for that one. Thanks again!

Re: Transmission tunnel grommets! [Re: Adrian Bott] #516447
05/06/18 10:05 PM
05/06/18 10:05 PM
Joined: Dec 2008
Posts: 18,502
South Yorkshire
DaveW Offline
Roadster Guru
DaveW  Offline
Roadster Guru
Member of the Inner Circle

Joined: Dec 2008
Posts: 18,502
South Yorkshire
For a large irregular hole, first cut a piece of neoprene slightly larger than the hole to provide a flange. Cut a suitable hole in the middle. Cut a slot if it needs to be slotted over an existing cable. Place it under the hole. Retain temporarily with masking tape or similar.

Then do the same again for the outside. Line up the slots. Run a thin bead of superglue on the neoprene just inside the hole in the panel. Place the two together and hold until the superglue sets.

Remove the temporary masking tape and you have a grommet.


DaveW
2005 Corsa Red Roadster S1
2016 Saffron Yellow (Narrow) AR Plus 4
Re: Transmission tunnel grommets! [Re: Adrian Bott] #517627
14/06/18 03:22 PM
14/06/18 03:22 PM
Joined: Sep 2011
Posts: 13,309
Mandello del Lario
Gambalunga Offline
Member of the Inner Circle
Gambalunga  Offline
Member of the Inner Circle

Joined: Sep 2011
Posts: 13,309
Mandello del Lario
I don't know about earlier models but the gearbox cover on the 2012 Plus 4 is an appalling bit of design.

The back of the gearbox cover has the transmission tunnel fitted over it. This means that the leather trim has to be peeled off and the transmission tunnel removed before the gearbox cover can be removed.

The front has a flange folded upwards that makes it impossible to get the cover off (the flange makes it impossible to slide the cover past the heater/radio box). If the flange was folded out from the firewall, in other words part of the firewall not the gearbox cover, the cover could be fitted over it and you could remove the cover without removing the heater/radio box. Apparently in some cars it can only just be forced past bottom of the heater box: not on mine swear

Given that the tail shaft can be accessed from under the car it is difficult to see any need to remove the transmission tunnel unless it has been damaged. In my opinion it should be possible to remove the gearbox cover without disturbing any other components. It is glued to everything with mastic anyway so water should not be a problem frown better still would be some good neoprene strips to form gaskets.


Peter

[Linked Image]
Re: Transmission tunnel grommets! [Re: Adrian Bott] #525926
05/08/18 09:04 AM
05/08/18 09:04 AM
Joined: Apr 2014
Posts: 3,200
Dorset, UK
milligoon Offline
Talk Morgan Addict
milligoon  Offline
Talk Morgan Addict

Joined: Apr 2014
Posts: 3,200
Dorset, UK
Why would water be an issue unless you regularly roll the car or drive through deep water?

My gearbox is bone dry and clean, the heat shielding on the inside of my gearbox cover, it is bone dry. The heat in the area probably rapidly dries out any splashes. As the floor boards are lower and not sealed from water as far as it is attached to the chassis any water would come through there anyway.

I think it's a bit of a none problem in all reality.


Mark - No Longer driving
Archie the Old English Sheep Mog...........
2010 Roadster 3.0 V6 (S3) wink

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