aero mirror glass removal?

[Flagstaff_911SC]

I need help.........

I'm trying to remove the glass on my aero mirrors and having a little trouble. I'm using a slotted screwdriver trying to turn the screw on the bottom of the mirror that releases the glass, but it's not budging. The screwdriver feels like it wants to spin in the slot. It's hard to get a larger screwdriver in there since the hole is fairly tight.

Any suggestions from you guys that have removed the glass before in aero mirrors?


Thanks,
Glen

[aircooledsonly]

Put some valve lapping compound on tip of screw driver, grind tip of screwdriver to fit better if necessary plus a good spray thread penatrant up in there, then go pray. I'm down here in Prescott. Keep in touch, I own a small Porsche shop here if I can be of help, Air Cooleds Only 928-541-7543. good luck, Jay Moore.

[5speed]

Flagstaff_911SC - the mirror glass is held onto the adjusting motor by a large locking ring not a screw. Hopefully you are not placing your screwdriver into the slot and trying to turn it around to unscrew. The locking ring is only plastic and you can mess up the slots by turning. What you want to do is use the screwdriver as a lever. You should be able to see a couple of slots through the hole on the bottom of the mirror. Using your small screw driver, engage one of the slots and by moving the screwdriver handle either towards or away from the body of the car you can rotate the locking ring clockwise or counterclockwise. As far as I can remember when facing the mirror glass counterclockwise will unlock and clockwise will lock. Hopefully someone will chime in and correct or confirm.

[Flagstaff_911SC]

Thanks guys for the suggestions.

I'm trying to turn the locking ring using a flat blade screwdriver (counter clockwise), but not getting anywhere. It seems pretty tight. I'm not sure how much force I can put on it.

Also I can see the different slots on the lock ring, so I wondering how far I'll need to go rotating the ring before the glass will come out.

Thanks again for the help, I appreicate it.

[RickM]

The ring will only turn approx 1/2" CCW to unlock. Sometimes it take a bit of muscle to unlock.

[coloradoporsche]

I hit the tirewall at the track. Glass came out very easily after that.

[RickM]

Here's a great aid for removal. Now you can visualize what's under there.


"Hint: to remove the side-view mirror glass, insert a flat-tip screwdriver through the hole in the bottom of the mirror into one of the slots in the retaining ring on the back of the mirror glass. Move it to one side or the other to rotate the retaining ring; this will release the glass. The animation to the right shows how this ring works. Note the slots at the bottom of the ring."

http://www.ed.scherer.name/Porsche_928S4/Slideshow3.html

[Jgordon]

Is this a flag mirror or a teardrop? I had the glass pop off ni my flag mirror (thank ferry for the retaining wire) and i just adjusted the mirror all the way to the left and reached in on one side to rotate the locking ring.

[RickM]

Originally posted by Jgordon
Is this a flag mirror or a teardrop? I had the glass pop off ni my flag mirror (thank ferry for the retaining wire) and i just adjusted the mirror all the way to the left and reached in on one side to rotate the locking ring.

The screwdriver through the hole method described above is for an Aero/993/teardrop/C2 turbo/968 mirror. I don't recall the method for flags.

[Flagstaff_911SC]

This is for an aero mirror. Thanks for the information everyone and RickM, great illustration on the lock ring and very nice 928S4.

Back to the mirror and hopefully with a little luck I'll get the glass out.

Thanks again everyone.

[Flagstaff_911SC]

Well, I got the lock ring to turn approx. 1/2" CCW (seems that it has gone as far as it will, also comparing it to RickM's illustration) using the screwdriver, should the glass come out easily by itself, or is it in there snug and need a little tug to get it out? Sorry to keep bothering everyone just having a little trouble

Thanks again

[5speed]

RickM - that is a great visual aid for the locking ring. If a picture is worth a thousand words then a moving pic must be worth a hundred thousand!

Flagstaff_911SC - the adhesive that holds the glass to the backing plate sometimes sticks to the adjusting motor. You should be able to pull it off with your fingers, just use alittle steady pressure. If it does not want to come off, don't go for the screwdrivers. Recheck the locking ring for full release, and you meant CCW when you are facing the reflective side of the mirror. The animation that RickM linked is from the backside and is released when turned CW.

The locking ring is also used on flag mirrors from 87-89 911's. Prior to that the glass was held onto the backing plate by three spring pins.

[DrkJstc]

Thanks to this thread, I didn't break my mirror.
Cheers

[imoto]

Originally Posted by 5speed

RickM - that is a great visual aid for the locking ring. If a picture is worth a thousand words then a moving pic must be worth a hundred thousand!

Flagstaff_911SC - the adhesive that holds the glass to the backing plate sometimes sticks to the adjusting motor. You should be able to pull it off with your fingers, just use alittle steady pressure. If it does not want to come off, don't go for the screwdrivers. Recheck the locking ring for full release, and you meant CCW when you are facing the reflective side of the mirror. The animation that RickM linked is from the backside and is released when turned CW.

The locking ring is also used on flag mirrors from 87-89 911's. Prior to that the glass was held onto the backing plate by three spring pins.

My aero mirror glass was difficult to remove the lock ring was released and as mentioned above adhesive was making it difficult to remove the glass. I had to pull on it quite hard but I got it.