Author Topic: Stuart No 1  (Read 15801 times)

Offline Jo

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Re: Stuart No 1
« Reply #120 on: February 08, 2019, 09:26:03 AM »
I agree with you John using the two cylinder studs would have been easier.

I decided to play it safe and draw the problem out as can be seen the foot needs another cut out added to be able to fit.

I won't be machining the cut aways until I can fit it to the actual cylinder and check the finished measurements  ;)

Jo
« Last Edit: February 08, 2019, 09:30:04 AM by Jo »
Usus est optimum magister

Offline Jasonb

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Re: Stuart No 1
« Reply #121 on: February 08, 2019, 11:31:14 AM »
As you have not drilled the cover for the fixings is there room to reduce the 9/16" ctrs without the nuts Hitting the central web?.

Other option would be to cut off the foot and solder on a larger one so it can use the two cylinder stud holes.

Offline Jo

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Re: Stuart No 1
« Reply #122 on: February 08, 2019, 11:47:37 AM »
It is not a difficult machining operation JB - if I can do it anyone should be able  :ThumbsUp: just a shame the drawing doesn't mention it which is why I posted it.


I tried turning the piston between centres on the rod but it was shattering too much  :-[ So Big C swallowed the crosshead and held the rod for me while I turned the piston and put in the ring grooves. I also took the opportunity to shorten the piston rod to the correct length.

Testing the piston in the cylinder showed that the piston is correctly spaced on the rod  :) While thinking piston I took the opportunity to turn up the inside of the rings and to face to width. I need to split them and heat treat them at some point.


A quick pic of family and I must start thinking about Sewing  :thinking:

Jo


Usus est optimum magister

Offline Gas_mantle

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Re: Stuart No 1
« Reply #123 on: February 08, 2019, 11:57:31 AM »
Looking good  :)   Is that proper Stuart paint? I like that shade and want something similar.

Online steamer

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Re: Stuart No 1
« Reply #124 on: February 08, 2019, 12:04:29 PM »
That's looking the part now.    I'm waiting for the front column.     8)

Keep at it Jo, it's coming along swimmingly!

Dave
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Damned ijjit!

Offline Jo

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Re: Stuart No 1
« Reply #125 on: February 08, 2019, 12:09:37 PM »
Looking good  :)   Is that proper Stuart paint? I like that shade and want something similar.

That is Bosny Acrylic Epoxy it dries fast even if the temperature is a bit cool. From either Amazon or Fleabay  :noidea:

Thanks Dave, you will be waiting a while longer that is one of the last bits I am planning to do .

Jo
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Offline Gas_mantle

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Re: Stuart No 1
« Reply #126 on: February 08, 2019, 12:16:23 PM »
Thanks, I wanted to try spray paint this time and wasn't sure of the shade I needed  :)

Offline Jo

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Re: Stuart No 1
« Reply #127 on: February 08, 2019, 01:47:54 PM »
I hav equickly knocked up the valve rod and end so that I could do that nice little casting  :naughty:

This piece is actually easy to hold you just have to think about it  ;) So holding the round bit in a three jaw chuck the bottom of the bearing part can be faced then bored. While it is mounted the bottom of the foot can be taken to height.

Hold on the bore and turn the top down to depth.

I can now examine the mounting on the bottom cover problem  :thinking:

Jo
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Offline b.lindsey

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Re: Stuart No 1
« Reply #128 on: February 08, 2019, 02:30:16 PM »
Looks like the mounting could be a bit tricky Jo. Interested to see how this turns out.

Bill

Offline john mills

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Re: Stuart No 1
« Reply #129 on: February 09, 2019, 02:31:03 AM »
looking at the last picture it looks like repositioned cover studs would have been good  if the stud holes had not been drilled.i wonder if a drawing was changed at some time

Offline ettingtonliam

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Re: Stuart No 1
« Reply #130 on: February 09, 2019, 08:15:59 AM »
Fit countersunk screws to the 2 cover holes, then the way is clear to drill and stud for the valve guide?

Offline Jo

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Re: Stuart No 1
« Reply #131 on: February 09, 2019, 08:37:25 AM »
I've examined the problem and hand filed away to clear the two cover studs. There is sufficient space for the two 4BA studs for the guide but I doubt that they are spaced at the 30.1mm shown on the drawing so I will be using the covers to guide the location of the studs.

Eric has been doing his main bearings  :)

 :thinking: I better do some gardening to give him some time to catch up  ;)

Jo
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Offline b.lindsey

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Re: Stuart No 1
« Reply #132 on: February 09, 2019, 01:27:08 PM »
Nicely done Jo on the guide mounting issue!!

Bill

Offline Admiral_dk

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Re: Stuart No 1
« Reply #133 on: February 09, 2019, 09:46:44 PM »
You are really moving along at quite a pace on this one Jo  :praise2:

I'm enjoying the trip very much so far  :cheers:     :popcorn:

Offline john mills

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Re: Stuart No 1
« Reply #134 on: February 10, 2019, 06:12:38 AM »
looks like you have managed to squeeze the vale guide in .
great progress