What is its purpose?

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Originally Posted by dm_td5

Now you see my confusion...

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Stop the window moving outwards when first opened... Possibly
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Closing, not opening... so it goes into the bailey channel... :rolleyes:

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Originally Posted by Xtreme

To guide the glass into the groove?

Roger

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Originally Posted by rovercare

^^^^minus the ?, the groove is the bailey channel:)

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Originally Posted by Slunnie

Yup... more so when you are driving and the air moves the glass into the wrong spot to close properly.

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Originally Posted by dm_td5

OK dumb question time...

On the front sloping portion of many vehicle front window frames (including the D2 and Defender) there is a small plastic wedge located about halfway up the window, on the outside when the glass is closed.

What is its purpose?

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I left these out inadvertently when reduilding some doors and the glass left the guide and would jam, when closing the window. After replacing the wedge all was OK.

So what ever else these do they certainly keep the glass in the channel.

Erich.

Good to see experimentation paying off. Something I've always assumed was there for a reason, now I know:)

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Originally Posted by Bundalene

I left these out inadvertently when reduilding some doors and the glass left the guide and would jam, when closing the window. After replacing the wedge all was OK.

So what ever else these do they certainly keep the glass in the channel.

Erich.

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My Classic didn't have these from new but after experiencing the problem at freeway speeds, I soon fitted a couple. makes all the difference :).

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Originally Posted by Scouse

My Classic didn't have these from new but after experiencing the problem at freeway speeds, I soon fitted a couple. makes all the difference :).

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This issue only ever cam about when they removed smokers (quarter) windows in all cars:(

I believe LR added them when they went to a thinner glass in the Rangies - post '87 (or later - maybe the '89 model?)

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Originally Posted by Xtreme

To guide the glass into the groove?

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Just need a bit of James Brown for that...

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Originally Posted by Poida4x4

Just need a bit of James Brown for that...

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:Rolling::Rolling::Rolling::Rolling:

very sharp ....... back into the knife drawer!!!!! :p:p

More on Defender aerodynamics on a UK forum....
LR4x4 - The Land Rover Forum > AERO DYNAMICS ANYONE?