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A Mogey Restoration

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#51 clamchip

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Posted 14 May 2021 - 03:40 PM

I wonder if its possible to try some solvents in a inconspicuous spot that may remove

the outermost paint and not attack the original paint.

I've done this before. The most recent was a 1 inch Jaegers equatorial.

Someone painted it black over the wrinkle gray.

I got lucky and paint thinner or was it gasoline? removed the black and didn't touch 

the wrinkle gray.

Your wood tube may have been varnished or shellacked and no pigment.

There was a time when brass fell out of fashion and the bare brass was painted.

The same may have occurred with wood.

 

Robert


Edited by clamchip, 14 May 2021 - 03:42 PM.

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#52 Bomber Bob

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Posted 14 May 2021 - 04:00 PM

I wonder if its possible to try some solvents in a inconspicuous spot that may remove

the outermost paint and not attack the original paint.

I've done this before. The most recent was a 1 inch Jaegers equatorial.

Someone painted it black over the wrinkle gray.

I got lucky and paint thinner or was it gasoline? removed the black and didn't touch 

the wrinkle gray.

Your wood tube may have been varnished or shellacked and no pigment.

There was a time when brass fell out of fashion and the bare brass was painted.

The same may have occurred with wood.

 

Robert

Before JD powder-coated my Edmund 4" refractor, he used a chemical stripper that worked that way -- roughly one layer at a time -- as that scope had been repainted at least once before...



#53 starman876

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Posted 14 May 2021 - 06:17 PM

Thanks for all the advice guys.  Now to choose which advice to go with. 



#54 starman876

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Posted 14 May 2021 - 06:23 PM

Shiny things

 

mogey shiny.JPG

 

compared to

 

 

Attached Thumbnails

  • mogey paint remove 1.JPG

Edited by starman876, 14 May 2021 - 06:43 PM.

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#55 starman876

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Posted 14 May 2021 - 06:25 PM

I have not polished the lens cell as of yet.  Need to get the lens out first.  Anyone taken one of these apart before.  Seems the front ring will not move.  


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#56 Kasmos

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Posted 14 May 2021 - 11:16 PM

Shiny things

 

attachicon.gifmogey shiny.JPG

 

compared to

waytogo.gif They look very good. How did you get those parts cleaned up and polished so fast? I'd especially think the focuser would have been a lot of work. Does it function well?



#57 Ken Launie

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Posted 14 May 2021 - 11:49 PM

I have not polished the lens cell as of yet.  Need to get the lens out first.  Anyone taken one of these apart before.  Seems the front ring will not move.  

It looked pretty good in the "before" photo so it may not need polishing. Does it still have its lacquer? If you post some good photos of front, side and back (not straight on but slightly offset to give a feel for depth) I may be able to help. I've disassembled and cleaned a number of early objectives. If it's been together for many years the elements might not come out easily even if you've removed the screws. This is where chips (or worse) can happen if you're not very careful. Sometimes soaking for a few days can help.

 

--Ken



#58 Ben Bajorek

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Posted 15 May 2021 - 05:27 AM

These plastic filter wrenches have been helpful for opening up stuck lens cells.  

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  • Lens Wrench.jpg

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#59 starman876

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Posted 15 May 2021 - 07:25 AM

These plastic filter wrenches have been helpful for opening up stuck lens cells.  

Have not seen those before.  I have always used strap wrenches.  



#60 Bomber Bob

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Posted 15 May 2021 - 07:50 AM

I bought a set of 3 strap wrenches at Harbor Freight that use plastic bands rather than metal, but otherwise look like conventional oil filter wrenches.

 

BIF:  My Mogey 3 lens cell was the first one I worked on that did not use a thread-in retaining ring.  Instead, it uses a brass band held in place by 3 small screws.



#61 starman876

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Posted 15 May 2021 - 08:21 AM

Got the lens cell out of the part that attaches to the OTA. Reminds me of the way Unitron does it.

 

the lens cell unscrews.   I thought it would be a retaining ring and then the lenses would come out. 

 

the cell has a retaining ring which unscrews and then the lenses come out.  I think I will leave the lens cell alone and polish the part that attaches to the ota.

 

mogey lens 2.JPG


Edited by starman876, 15 May 2021 - 10:10 PM.

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#62 starman876

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Posted 15 May 2021 - 08:22 AM

mogey lens 3.JPG


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#63 starman876

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Posted 15 May 2021 - 08:28 AM

waytogo.gif They look very good. How did you get those parts cleaned up and polished so fast? I'd especially think the focuser would have been a lot of work. Does it function well?

Lot of elbow grease and a great buffer.  Focuser works great.  The focuser tube and the extension tube are brass, but they are covered with some sort of black paint.  I think it is lacquer. I might leave it that way or maybe I will polish them.


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#64 starman876

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Posted 15 May 2021 - 11:17 AM

another shiny thing

 

mogey lens 7.JPG

 

I will not polish the lens cell.  Not taking any chances taking that lens apart.


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#65 starman876

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Posted 15 May 2021 - 04:23 PM

The tube without the paint

 

mogey tube.JPG

 

 


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#66 Terra Nova

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Posted 15 May 2021 - 04:24 PM

The tube without the paint

 

attachicon.gifmogey tube.JPG

Lovely! :bow:


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#67 starman876

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Posted 15 May 2021 - 04:24 PM

I think the finder that came with the unit was a replacement at a later date.  Found three patched holes on the opposite side of the tube where I bet the original finder used to be.



#68 starman876

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Posted 15 May 2021 - 04:26 PM

Lovely! bow.gif

Thanks Terra


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#69 Terra Nova

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Posted 15 May 2021 - 04:30 PM

It is truly lovely J. Definitely worth the jaunt over to western PA. It was near Johnstown wasn’t it? That place, in and of itself is a very interesting sidetrip. There is a nice National Park visitors center and museum on the site of the old reservoir and downtown there is a flood museum. Plus the cemetery is also fascinating.


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#70 starman876

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Posted 15 May 2021 - 04:32 PM

It is truly lovely J. Definitely worth the jaunt over to western PA. It was near Johnstown wasn’t it? That place, in and of itself is a very interesting sidetrip. There is a nice National Park visitors center and museum on the site of the old reservoir and downtown there is a flood museum. Plus the cemetery is also fascinating.

It was just outside Pittsburg.  I have a friend who travels back and forth between DC and Pittsburg and he picked it up for me.   He likes driving  his Tesla hot rod cool.gif


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#71 Bomber Bob

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Posted 15 May 2021 - 05:17 PM

Simply... Stunning Antique Refractor, Johann.  Congratulations!!   I bet the objective is equally impressive.



#72 starman876

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Posted 15 May 2021 - 06:07 PM

Simply... Stunning Antique Refractor, Johann.  Congratulations!!   I bet the objective is equally impressive.

Thanks JW.   I have not had it out viewing the  night sky.  I thought I would wait until I finish the mount and the tripod and use it as a complete system.  I bet that over the years this scope provided some awesome views.  


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#73 clamchip

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Posted 15 May 2021 - 06:22 PM

Wow beautiful !

How did you remove the paint from the tube?

 

Robert



#74 starman876

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Posted 15 May 2021 - 06:24 PM

The white paint on the tube took a while to remove.   However, things became a bit easier when I realized it was wrapped in a veneer.  Almost looks like Walnut.   I did not stain the tube.  What you see is the color that appeared when I removed the paint.  I was a little worried the veneer might come loose, but that did not happen.   What a beautiful tube, why would anyone have painted it. 


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#75 starman876

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Posted 15 May 2021 - 06:25 PM

Wow beautiful !

How did you remove the paint from the tube?

 

Robert

aircraft remover with a putty knife and once I got most of the paint off I then used fine  steel wool with brush cleaner.   Did not stain the wood.  Just put some Old english on it and then some Pledge.


Edited by starman876, 15 May 2021 - 06:26 PM.

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