TC EXU Mirror

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loustaller
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TC EXU Mirror

Post by loustaller » Sun Apr 21, 2024 8:54 pm

This may be the most lame question ever! I feel lame asking it but I can't figure out what's going on. I bought a reproduction interior mirror which is a copy of a DEMSO mirror but for the life of me I can not figure out how to adjust it! I loosen the Acorn nut which allows the mirror head to swivel to the side but when I tighten the acorn nut the mirror head will not stay in the needed position, It moves back to the straight forward position. Granted, the mirror is a piece of crap but it should still be able to adjust so the driver can see behind him! Anyone with this type of mirror experience this? What's going on? :?

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Rob Reilly
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Re: TC EXU Mirror

Post by Rob Reilly » Mon Apr 22, 2024 4:30 am

There should be a wave spring inside that provides tension or friction to hold the mirror in any position.
Perhaps you are over-tightening the acorn nut. It should be tight enough to produce friction, but not so tight as to pull the mirror back to straight.
Desmo mirror EXU.jpg
1937 TA 1271

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loustaller
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Re: TC EXU Mirror

Post by loustaller » Mon Apr 22, 2024 7:24 am

IMG_8257.jpg
IMG_8257.jpg (111.05 KiB) Viewed 396 times
It seems I'm lacking a wave washer. As far as over tightening the acorn nut, I could have but as soon as it has any pressure it starts to return to the straight ahead position, while the head is loose enough to droop down. I bought the mirror from FTFU so I'll contact Doug for his input. A minor issue but also an important one.

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Duncan M
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Re: TC EXU Mirror

Post by Duncan M » Mon Apr 22, 2024 9:03 am

Lou, you have not taken it apart all the way. There should be a sort of ball and socket joint inside. Maybe it needs a light application of grease? These do operate a bit on wishful thinking, and tend to be a bit difficult to deal with as far as adjustment. Tightening it too much will lock it in place. I have a split lock washed behind the nut. I may have added that...

Tell us what Doug's thoughts are. Always interesting to hear what the vendor has to say.

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loustaller
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Re: TC EXU Mirror

Post by loustaller » Fri Apr 26, 2024 8:16 am

Here's a photo of the interior mirror completely apart. There doesn't seem to be anything that would help the mirror head stay in the needed position. I spoke to Doug at FTFU and he will be sending me a replacement mirror.

IMG_8258.jpg
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loustaller
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Re: TC EXU Mirror

Post by loustaller » Fri May 10, 2024 9:14 pm

Doug sent me a new mirror which seems to be fine. I didn't take it apart to see what was missing from the first one. I'm just happy I have a mirror I can adjust.

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tomalger
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Re: TC EXU Mirror

Post by tomalger » Mon May 27, 2024 4:35 pm

I had the same Mirror & same problem...this one was from Moss.
also the Acorn nut is precariously close to the windscreen.
? how robust is wave washer ? would a split washer work ?
cheers*

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loustaller
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Re: TC EXU Mirror

Post by loustaller » Thu May 30, 2024 8:41 am

I don't know if FTFU has the mirror reproduced or if they use Moss's mirror. I would think he just sells what he gets from Moss. Because the replacement mirror is adjustable (slightly but enough) I didn't disassemble it so I don't know what's in there, I'm just glad I can adjust it. Someone else mentioned the use of a lock washer so I guess it might work. And yes, the acorn nut seems to be very close to the windscreen glass. Mine is even closer than most other cars because I slightly laid back the windscreen assembly requiring the use of a small Nylock nut to replace the long acorn nut they used. I'll look for a small short dome acorn nut one day but for now, all is good!

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robertscottcostello
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Re: TC EXU Mirror

Post by robertscottcostello » Thu May 30, 2024 10:03 am

Mine is an import, having two screws about and inch and a quarter apart. Was this standard, or aftermarket? I'll be looking for a replacement soon.
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1949 TC7556
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Duncan M
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Re: TC EXU Mirror

Post by Duncan M » Thu May 30, 2024 12:08 pm

Robert-
Only a small number of TC's were EXU with the oddball mirror. I think it is quite similar or the same as a TD mirror. You do not have an EXU and your car would have come with the different-- standard TC mirror. I think that is what you are showing.

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