The mirror need to be removed and before that the black rubber outer seal. I say rubber but mine is cracked on the edges due to age and has little 'give' it could be a soft plastic. If anybody knows where I can get a new one please let me know. Anyway the next photo shows a large crack on one of the corners. I gently prised this corner off and the rubber seal came off easily.
Next job was removing the actual mirror which is held by the top and bottom of the case with a small lip. The top lip extends over the mirror moch more than the lower lip which only just curves over the mirror. I used a pair of tweezers to gently prise one corner up on the bottom lip. Then worked along the lip line and using a 6" metal ruler worked along the bottom lip until the mirror popped out. Be careful not to scratch the mirror surface under the glass.
The internals were then exposed and show how the dip switch works. Also note the mirror glass is wedge shaped. The 'ball' is located between two plates and you can see the 4 tabs that hold the top plate around the ball. These would need to be bent back to allow removal of the ball. The ball/socket assembly sits on two springs (the rusty bits) and is held in place by a curved wire. To remove this you need to press down on one end of the socket assembly and you can then remove one side followed by the other. This releases the ball/socket assembly from the case but as mine still has the original stem (not for a GT40!!!) I cannot remove the assembly. The last picture shows a close up of the ball and stem. It looks like the ball is screwed into the stem, maybe brazed or soldered?? this will be cut off at that joint so the socket plates can be removed. All that is then required is to pull up the tabs for the plate and a new ball can be replaced. I'm waiting for delivery of my new ball and stem and will replace it then.
Edited with more comments and questions...see below
Great to have your experience and not have to experiment with mine.
I'm going to ask Lynn Miner to move this and your thread re the Lucas Ammeter to the "how to" area of the site.
Mirror I bought is without the rubber trim...Some pics of 40's show mirror w/o this...Wonder if any of the originals came w/o or if I'm not looking at vintage pics..Will be good if someone knows what can be used. If not and if you advise the rubber IS needed I'll try to source something here in the States when I receive the mirror (I have a Co that mfgs rubber extrusions nearby that may have something and if correct can't be found I'll try to get something for both of us if you want...pls advise).
I see glass is special so guess best to refurb backing at a mirror glass shop (resilver or black the back?...Also looks like the glass is adhered to the dipping mechanism with a dob of RTV ??
Another point...Mine does not have the white ball on the dipping lever (there is a black plastic sleeve there...were some originally this way?)...Guess I'll look around for something at a craft store that will mock the original if you advise that the sleeve is not correct
I got the same mirror without the rubber on Ebay for $16.50. I saw the ball has a 1/4" shaft that is pressed into the chrome arm. A lip on the ball shaft allowed a screwdrive to work the ball shaft out of chrome arm. A little time on the lathe with some 1" aluminum added the hole to repress ball shaft , fit angle for windshield.
fun little project,
I think you will find that the rubber surround to the mirror was fitted in the late 60's to these mirrors. I believe it was aimed at meeting new safety standards, re sharp objects to hit heads on. The black plastic toggle to the dipping switch, replaced the earlier white ball.
The NOS original mirror i have doesn't have the rubber surround or the black toggle.
All the original cars i have seen , have not had the rubber surround fitted to the mirror.
Hope that helps.
Does anybody know of a mirror re-silvering firm in the UK? I have 2 of these mirrors (one with a white ball the other with a black stem), and would like to get the reflectors themselves back up to standard.
Steve, when operating the dipping lever the whole case including mirror 'dips'. The mirror is attached to the case via the lips ( and in my case the black trim also). When you slide the dipping lever across it makes the case move in relation to the stem plates which remain stationary. There is no contact of the mirror with the dipping assembly.
I see no reason for not being able to replace a 'black lever', the black levers I've seen are just heat shrink tube around the metal dipping lever. If using a white plastic ball it would require a rectangular slot to be cut into it so it can be pushed on. Perhaps a small drill could be used to produce 3 holes in-line deep enough to keep the white ball on by pushing it on.
Dont know of anybody who does re-silvering in UK but havent searched to much.
Also having looked at various photos there are no black trims in any original GT40's I've seen (but does the one pictured below have one???, I have also seen early GT40's with a different stem and I think is located to the roof or attached to the glass near the roof.
Its also surprising how far offset to the left (for right-hand driving position) the mirror is on some cars. I assume you get better views, see photo.
OK..To maybe put a final point on this (maybe not):
If the refurb silvering on mine works out OK (waiting for my ebay purchase to arrive to disassemble and have it done) and the UK guys can't find a source I will be happy to facillitate over here (with Sterling/$ probably same cost even with post).
More questions and comments:
Although my car is a MK11 I perfer the MK1 mirror mount...I have noticed that some of the cars mounted the mirror off center and I will evaluate this and may do same if it offers best visability.
I need to remove the mirror that came with the car and was thinking of using waxed dental floss like a saw to remove (anyone done this or better idea). I believe the mirror came with a peel-off self stick adhesive pad.
Wondering what best (what others have used) to adhere the aluminum mount for the Lucas and proceedure used...It's a lot heavier than the plastic mirrors that can be installed with auto store products so wondering if same products should be used or something else...Rather not experiment...Anyone?
Lynn Miner will post exerpts from this thread in the "How To" forum
and give credit to all contributors.
I got mine on ebay uk - the old mini's had them aswell I think. I was having the ally window post made up and thought I'd get a few extra made if anybody needs one £10uk plus P+P. They have an m6 thread already in the front - here's a few pics.