Removal of wing mirrors
 

Now i have the passenger side mirror off the car for the dreaded aluminium corrosion in the baseplate.

Is there a way to split the plastic part from the ally part?
There appears to be a ferrule and a spring. Looks like i'd have to drill the top off the ferrule, which would then never go back together.

Hmm, head scratching

There's a slot under the mirror to insert a screwdriver to remove the glass from the mirror housing. Then you will see the outer edge will unclip with some persuasion, to remove the plastic backing you will then need to drill the bonded plastic "rivets" they're actually part of the backing moulding to release them from the aluminium frame inside the mirror.

I did this to get my spare corrosion free mirrors painted and I'm yet to reassemble them, I'll use a washer for strength and a two part adhesive to glue the backing on to the aluminium frame.

I'll get some photos later so you can see what I mean as I'm sure what I've wrote doesn't make that much sense without seeing them all apart.

Check the mirror casing first; Volvo modified(sic) the casings on the later 900-series cars by removing that slot and revising the mirror glass so it became a fit-once, break-once component, with a different backing-plate... If you have the later type your only hope is to split the shell along the seam; which will require you to keep your fingers crossed as you do the job.

Pretty sure I know what you mean.
That would be my only gripe. Having to glue them back together.

We shall see how bad the corrosion is. And whether I can paint them in one piece.

The basic design of the mirror casing didn't really change much between a 740 and a 940 until much later on towards the end of the 940 production run when the design morphed to something similar to 850/v70's etc whereby the various component parts came apart easily.

With the introduction of 940's the door faceplate changed (came down lower) allowing a shorter window scraper to terminate in the mirror faceplate rather than pass under the faceplate as in 740's. The other change was the way in which the mirror was attached to the tilt motor. The mirror rather than a beng released and fitted via a small hole and a screwdriver on the underside the modern system of 'push on' appeared. Basically once on the mirror doesen't release easily but, with time you can get it off without breaking it! This change resulted in a tilt motor with a slightly different mirror fixing ring. In fact when I smashed up my V70's mirror a few years ago breaking the tilt ring I replaced it with one from a 940.

I have both 740 and 940 mirror casings and both are constructed in a same way. You can separate the black plasic part of the casing from the pot metal frame by drilling out the heads of the 6 plactic 'rivets' forming part of the black outer plastic casing so destroying them. This also entails separating the front black plastic trim section from the back section of the casing to allow the back section of casing to be removed. You are then left with the faceplate attached to the pot metal frame. The the spring loaded mirror frame is mounted on a pintle that is fixed at the top by pressure folding the furrule over on itself. Yes, you could cut it off but the problem remains of how to re-fit it easily.

Having been all through this years ago I cleaned up the pot metal of the faceplate and after masking up the mirror spray painted the faceplace.

These photos are actually of a 740 mirror the majority of 940's are the same.

Oops, had a rethink and looked at a dismantled mirror resulting in a drastic re-write as above!

Bob.

I've not done this particular repair but based on experience working on similar pieces of kit I've got a couple of tips.

Firstly, it is sometimes possible to release that sort of melted plastic bond using heat. I've done it on smaller versions using a soldering iron. If a similar approach is possible here it might leave more of the original moulding intact which will help when reassembling the mirror unit.

Also, if you do end up having to glue it back together, I have found JB Weld Plastic Bonder Black very effective for that sort of repair. One of the internal side brackets on the rear bumper of my V90 is held on using JB Weld to replace the broken plastic welds and it is holding up very well. You need to clean the surfaces and let them dry thoroughly first.

https://www.volvoforums.org.uk/pictu...ictureid=12187

I decided to have a go at painting it in one piece.
I never close my mirrors so I’ll make them look good open.

Very interesting discussion this, as I bought a pair of mirrors to paint VerdiGris... They're currently Coral Red - lol @Richie you could have had my factory painted ones as a swap :D

A bit annoying that they're constructed this way, I've always appreciated the way you can repair most Volvo parts.