1953 Colchester Student Mk1 6" gap bed - A restoration project - Page 19





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  1. #361
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    Default Re: 1953 Colchester Student Mk1 6" gap bed - A restoration project

    This morning I set out to spray some etching primer on all the new bare metal areas of the various parts I worked on and the areas of the cabinet Carl cleaned and sanded.

    Here are the headstock and the lid ready to be sprayed.




    Getting to spraying took a lot longer than anticipated as I could not find my small spray gun and the normally used one does not fit into the drawer cabinet. Anyway, I gave up trying to find the small spray gun after unpacking most of the garage. It is there somewhere ...

    Headstock sprayed.





    And the lid





    The apron had three sides to spray, so it was fun watching the paint dry before we could turn the apron for the next side. Fortunately not, as Brain made the wise suggestion that I spray the cabinet in between drying times ...





    I ended up turning the stand onto its back to get the gun set with a narrow fan spray to reach the far corners.





    When this was done, we turned the stand onto its feet to tackle to topside.





    Carl cleaned the tray and I sanded the round lip smooth with a rotary flap disk to get the million two hundred and three twenty tens of dings out.





    Whilst trying to clean the coolant drain pipe's inside with a bottle brush type wire brush, Carl made the pipe go BANG! We discovered it simply screws into the socket welded to the tray! So this solves a lot of issues for me. With the pipe removed, I can get into the sump to clean and spray it and the pipe is now all cleaned up.







    I tackled the back splash plate and sanded it down to get rid of all the uneven spots. The epoxy I sprayed on sure is tough and it takes a long time to make any progress on it.








    Before we knew it, the day was past. Here the topside is all cleaned up and Parco washed, ready for spraying tomorrow morning.





    A lot of work done and not a lot to show for it! That is how the job progresses ...

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  3. #362
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    Default Re: 1953 Colchester Student Mk1 6" gap bed - A restoration project

    Quote Originally Posted by mygoggie View Post
    A lot of work done and not a lot to show for it! That is how the job progresses ...
    I don't want the thread to end, so the longer it takes, the better.. as I've said before, it's my daily read and I'm really enjoying the level of detail and correctness of the restoration. It really is a breath of fresh air in our current climate in this country.

    Please keep up the good work and regular posting!

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  5. #363
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    Default Re: 1953 Colchester Student Mk1 6" gap bed - A restoration project

    Quote Originally Posted by Dewald Posthumus View Post
    I don't want the thread to end, so the longer it takes, the better.. as I've said before, it's my daily read and I'm really enjoying the level of detail and correctness of the restoration. It really is a breath of fresh air in our current climate in this country.

    Please keep up the good work and regular posting!
    Well, I must be honest. Posts like these make all the hard work of compiling a post every evening, worth it. Thank you for the kind words Dewald.

  6. #364
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    Default Re: 1953 Colchester Student Mk1 6" gap bed - A restoration project

    This morning I got up a bit late as it was so cold. OK, cold for us in PE.

    First thing to do was to check my handiwork of yesterday. I found a few spots on the back splash plate that could be smoothed some more, so I spent about an hour to sand these down.








    The lathe stand tray has one spot we missed yesterday. I sanded this smooth and then washed the tray again with Parco cleaner. All good for spray painting!





    The security inspector made her turn to ensure all is safe and sound before we start spray painting!





    And off I went ... it went rather faster than I thought.











    There were two places I could not reach with the spray gun. Carl quickly took to the task of brushing some primer into place.







    All done, and then I realised I forgot the coolant drain pipe we unscrewed by accident yesterday. Oh well, I will do that with the bed. Alas, the strontium etching primer is finished so I need to buy more. So much for professional advise from the supplier ... I will make my own volume estimates next time.

    Then onto sanding the orange parts. The clear coat remained tacky and after discussing the issue with my specialist paint friend he advised that the so called 2K thinners sold by the paint shop is poor quality and does cause this. Only solution is to remove the clear coat and redo it. I will also have to touch up the orange now as you cannot sand an item and not remove some of the base coat as well.

    Anyway, lesson learned. So much for professional advise from the supplier ... Here we are, all parts sanded and cleaned.







    With that it was time for lunch. This afternoon I need to go and pick up the motor's bearings and do some shopping. You know, my fav pastime!

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  8. #365
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    Default Re: 1953 Colchester Student Mk1 6" gap bed - A restoration project

    Two different inspectors popped up over the last few days. Health, and security. Hopefully they are not at loggerheads with each other? Beautiful characters by the way!

  9. #366
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    Default Re: 1953 Colchester Student Mk1 6" gap bed - A restoration project

    Quote Originally Posted by EtienneB View Post
    Two different inspectors popped up over the last few days. Health, and security. Hopefully they are not at loggerheads with each other? Beautiful characters by the way!
    The security inspector looks a bit shady.You know those types thats looking for a bit of a backhand.Those shifty eyes are a give away.

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  11. #367
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    Default Re: 1953 Colchester Student Mk1 6" gap bed - A restoration project

    Quote Originally Posted by plunger View Post
    The security inspector looks a bit shady.You know those types thats looking for a bit of a backhand.Those shifty eyes are a give away.
    Yeah, she is real shady especially when she has her darkies on!


    Two different inspectors popped up over the last few days. Health, and security. Hopefully they are not at loggerheads with each other? Beautiful characters by the way!
    Actually, they are very good mates. The health inspector is a cross between a bear and a cat while the security inspector is a full blown viscous canine. Amazing characters they do have.

  12. #368
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    Default Re: 1953 Colchester Student Mk1 6" gap bed - A restoration project

    Man, this morning was cold for us ... 5C is unheard of!

    I had to postpone painting to a bit later allowing for the sun to do its work.

    First step was to sand down all the brushed on etching primer and get the surface smooth.





    Wiping all the parts down again to get rid of any possible dust. Here they hang, waiting to be painted.





    The stand was done in stages. I first did the impossible and sprayed under the round lip using a very solid spray to get the paint to go into the joint. Not easy for me as I am not a spray painter.





    The result was a few runs in two places, but these can be sanded down. No real issue.







    The back splash plate gave me the same grief in the corner ...





    Nothing serious though. It came out very nice and flat.






    The gearbox lid (yeah, the side lid) was perfect.





    The door and the drawer were done in stages to make sure I can get good coverage.







    The apron again was a three stage job with Carl helping me to turn it each time the paint was dry to the touch.







    I even found enough left over etching primer to coat the forgotten pipe. This allowed me to give it a coat of MS primer as well!





    The cabinets were a major headache due to me not finding the small gun ... I took my time and used a combination of direct sprays and very wide wet sprays to float the paint in.








    I even sprayed the Quad 303 and Quad 33 parts (click to read more about these restoration projects).







    After spraying, it was time to clean the gun and tidy up the mess on the painting workbench. Once that was done it was time for some Jamaican juice and lunch!


    With full stomachs and some serious Jamaican courage, we set out to get the bed's innards clean.





    The dark insides with lurking viscous things with sharp teeth that cuts your fingers. Carl is not afraid and he tackles them with his magic brush wand.




    I finally found the rotten O-rings or leather seals that seals the pan from the cabinets below. These are recessed into the bottom of the bed's stands.







    I took some measurements. For future reference you just need to know how to read a vernier.











    Yes, I am correct! You did try and you managed to work out the diameters! Congratulations! You won a whole case full of cyber wiskey.

    While I was cleaning the tail end of the bed, I found these two holes beneath the paint. Anyone knows what was fixed here in the past?




    And Carl was making good progress in destroying all my wire brushes in his valiant fight against the evil dark ones living in the caverns of darkness full of slimy walls.





    Looking very good!











    While he was fighting the good cause, I tackled the remaining hand wheel.

    First step was filing it down. This wheel is badly dinged and I do not think I will get it to a good surface. Oh well, we do need some patina to retain value don't we?





    Onto 180 grit sanding paper. See the ding?





    Then 220 grit.





    This is to where I got when we had to call it a day. Onto packing everything away and sweeping the floor.


    Oh, before I forget, here are the correct bearings for the motor. SKF 6206-2Z/C3 The C3 means that the balls can expand with heat and still run as smoothly as when cold, the 2Z means two sides sealed, 6206 is the size of the bearing and SKF is the manufacturer. Get it?


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  14. #369
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    Default Re: 1953 Colchester Student Mk1 6" gap bed - A restoration project

    Friday, end of the week or start of the weekend or for some of us, just another day of lockdown. Whichever it is, be thankful for the small moments and tiny things that you need to look for to make the day worth it!

    My first task this morning was to do some woodwork. The Boss being an artist always has a client with a frame issue. This time the frame was to tall for a new painting my wife had to fix. So guess who gets the job? I seldom use machines to do woodwork and love doing everything by hand. So I set out the new length of each side and cut the width section off. Then cut the lengths to length. Can you say this? Must be, because I just did! Then onto gluing the width section back on.





    While I was working Carl made his appearance. His mission today? He wants to complete the task of getting the bed shipshape and ready for etch priming.

    Sorry for the light, but we had a bit of sunshine and working under a tree is always good for the soul. We dragged the bed out and Carl could work in the shade.





    I tackled the coolant tank. Many muchness of gunk and rust to be found!









    No, no top view ...

    I scraped most of the gunk away and then put scraper to paint.







    Then it was time to coat the areas with phosphoric acid and wait a bit. The loose paint became looser and the rusty areas showed their true colours. Welcome to the Coolant Bar!









    And yes a top view or two or maybe if you ask nicely thrice times!









    I will leave these surfaces like this till tomorrow and then clean everything.


    In the meantime, Carl finished the bed! This was a major hurdle for me to cross and I am ever thankful he did it so well!





    Tomorrow holds its own adventures, so we cleaned the garage and packed away the tools and called it a day. Time to take the inspectors to the beach for some exercise.

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  16. #370
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    Default Re: 1953 Colchester Student Mk1 6" gap bed - A restoration project

    This morning the Boss asked pretty please if I cannot complete the frame and mount the painting for her ...


    I gladly obliged ...

    Three coats of Woodoc 10 and one coat of furniture oil later I could mount the painting.

    The back with new corner pieces and wood mounting clamps.






    And the painting. I think the frame looks a lot less shabby and compliments the painting now.






    Rest of the day I will spend resting and working on the sand filter. Such a lovely day, we need to be outside!

  17. #371
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    Default Re: 1953 Colchester Student Mk1 6" gap bed - A restoration project

    Now where have I seen this before...

    Oh yes, I remember!


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  18. #372
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    Default Re: 1953 Colchester Student Mk1 6" gap bed - A restoration project

    The Boss is a serious artist! Can I commission an Isuzu in Repsol colours? I'm sure it's not been done before!

  19. #373
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    Default Re: 1953 Colchester Student Mk1 6" gap bed - A restoration project

    Quote Originally Posted by EtienneB View Post
    The Boss is a serious artist! Can I commission an Isuzu in Repsol colours? I'm sure it's not been done before!
    You sure can.

  20. #374
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    Default Re: 1953 Colchester Student Mk1 6" gap bed - A restoration project

    The day started another way than I envisaged. I was asked to compile a fee estimate on a rather big floodline study. That took a bit out of my morning. I am not complaining as it means at least some clients are starting to do something again.

    My plan for the day was to work on the water purification project, but with half the morning gone, I decided against it. Onto lathe restoration stuff it will be!

    The coolant chamber had to be completely free of rust before I can even think of putting an etching primer down. This is what it looked like after standing for more than 24 hours with phosphoric acid painted onto the surfaces.







    You will agree, that it is not too good a view from a rust free perspective. I asked Carl if he would mind spending the day on his knees and repent of his sins ... oops I mean, sand the rusted areas in the coolant chamber. He kindly obliged.





    Because he is a lot smaller than I am, he could do this! Impressive Mr Cleaner, alias Sandkriek!






    I tackled the gears who were in a fight or maybe wanted a passion gap?? Who knows?





    I decided to repair the gears for now and when I have the means, cut new ones. Maybe someone wants to donate an old milling machine for restoration Yes, I am in the market for such a project ..

    I marked out the levels to where I wanted to grind the areas with missing teeth. Here are each gear with the marked levels.











    The big gear had more damaged teeth which I only noticed while grinding. One tooth was new, but was too small, so I grinded that out as well. Just as well, as the brazing was shoddy and the base of the brazing was hollow.





    Here are all the gears to be brazed.






    This gear will be TIG welded as it is made from silver steel. I found that the one gear next to the sheared area was damaged and promptly cut it out as well.





    In the meantime Carl was still sanding and sanding and spending time on his knees.


    And then it was time to clean the garage for spray painting. I wanted to get the orange electrical parts done today as I would like to start assembling the parts. As I fininished cleaning Carl decided to use the pencil grinder and wire brush on some hard headed rust sections .... alas, all my cleaning was undone. Oh well, at least I did a first round! Time for lunch it was and some Ethiopian syrup.

    After feeling refreshed, blood sugar levels balanced out and Brain feeling bright and sparky we moved onto cleaning again. Then it was time for painting. It took some effort and some kind adult words, but I got the orange on as a wet coat without it running. Then the clear top coat. I used other non 2K thinners as this was all I had today and it made less of a gel mix. So the good 2K thinners as sold to me must be utter rubbish. I ended up pouring the clear coat through some thin T-shirting cloth to remove all the jelly stuff.

    I put two layers of clear top coat on and on the coolant pump I did four layers. Hopefully it will stay put when submerged in the coolant mix. There we are ... You can watch the paint dry with me!







    Not perfect, but the finish is quite good with no running and solid coverage. I will double check tomorrow, but the parts are drying well and smoothing out nicely.

    Carl is painting some Parco cleaner onto the very clean surfaces. It should blacken out nicely overnight and create a new protective layer.

    Tomorrow I need to buy more strontium etching primer to cover the bed and the coolant chamber. Someone heard I am going to town and has now mentioned something to the effect of a shopping list ...

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  22. #375
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    Default Re: 1953 Colchester Student Mk1 6" gap bed - A restoration project

    What is the purpose of clearcoating your orange motor.?

  23. #376
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    Default Re: 1953 Colchester Student Mk1 6" gap bed - A restoration project

    Quote Originally Posted by plunger View Post
    What is the purpose of clearcoating your orange motor.?
    Bling @plunger, bling ...

    It gives it a highly protective layer and makes it look blingy ;-) Just need to add a spinner or two as well ...
    Last edited by mygoggie; 2020/07/21 at 09:33 AM.

  24. #377
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    Default Re: 1953 Colchester Student Mk1 6" gap bed - A restoration project

    I have been asked how I will repair the missing teeth in the gears. Basically I am following this example on Vintage Machinery

    Last edited by mygoggie; 2020/07/21 at 10:05 AM.

  25. #378
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    Default Re: 1953 Colchester Student Mk1 6" gap bed - A restoration project

    The center spline teeth on this guy also don't look very kosher:



    Surely they shouldn't look that grotty?
    Jakes Louw
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  27. #379
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    Default Re: 1953 Colchester Student Mk1 6" gap bed - A restoration project

    Quote Originally Posted by jelo View Post
    The center spline teeth on this guy also don't look very kosher:



    Surely they shouldn't look that grotty?
    Nope. Looks like someone cut those teeth on a drill press.
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  28. #380
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    Default Re: 1953 Colchester Student Mk1 6" gap bed - A restoration project

    Quote Originally Posted by jelo View Post
    The center spline teeth on this guy also don't look very kosher:



    Surely they shouldn't look that grotty?
    I also had my doubts but thought it was the photo angle.
    Last edited by Spiceman; 2020/07/21 at 10:53 AM.
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