Author Topic: CONWAY 0-4-0 3 1/2" GAUGE LOCO  (Read 94383 times)

Offline Firebird

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Re: CONWAY 0-4-0 3 1/2" GAUGE LOCO
« Reply #900 on: July 21, 2019, 07:27:50 AM »
Hi

Thanks Roger and Mike  :ThumbsUp:

Sorry for the slow reply, I have just returned from the family holiday

Cheers

Rich

Offline Firebird

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Re: CONWAY 0-4-0 3 1/2" GAUGE LOCO
« Reply #901 on: July 21, 2019, 07:10:55 PM »
Hi

Just before we went away on holiday I started to assemble the regulator but came across a problem.  :thinking:

The central spindle has to have a spring on it to keep the disc pressed against the regulator body face. The drawing clearly shows a nice gap around the spindle



But in practice there is no such gap



I have checked and double checked the drawing and it simply doesn't work, perhaps another Martin Evans error

To overcome the problem I have made another disc but moved the tapped holes out by 1/32". It meant that I had to make another lower part with its tapped holes moved out by 1/32"





Now I have room for the spring

Cheers

Rich

Online mike mott

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Re: CONWAY 0-4-0 3 1/2" GAUGE LOCO
« Reply #902 on: July 21, 2019, 08:31:13 PM »
It is disconcerting to find these sorts of errors. It makes for a lot of wasted effort.

Mike
If you can imagine it you can build it

Offline Firebird

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Re: CONWAY 0-4-0 3 1/2" GAUGE LOCO
« Reply #903 on: July 21, 2019, 08:37:07 PM »
Hi Mike

That is quite true.

I spent the best part of a very valuable day in the workshop trying to overcome the problem and there is still a little more work to do.

Cheers

Rich

Offline Firebird

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Re: CONWAY 0-4-0 3 1/2" GAUGE LOCO
« Reply #904 on: July 28, 2019, 06:06:27 PM »
Hi

Confident that I have the regulator sorted its time to start assembling things. The regulator body is fixed to the boiler by 2 stainless steel screws. Plenty of thread seal was applied



Followed by the tube that screws into the regulator through the bush in the smoke box, using the tool to screw it in. Thtread seal used again





Followed by the wet head bush which screws into the bush in the smokebox and at the same time screws onto the tube from the regulator, using the tool to screw it in. thread seal used



Then the wet head and super heater



Remember I said I was confident about the regulator. I spoke too soon  :facepalm2: :facepalm:

The regulator inner dome won't fit over the regulator



Strip it all down again. Make a split collet to hold the central bolt and shorten it







Now it fits. Make a gasket and bolt it on



The backhead has its cover fitted. Then the regulator bush, handle, water guage, blower valve, firehole door etc



The rear section of boiler cladding with a couple of brass bands



The cover on the front of the firebox and the cover over the firebox



The front section of boiler cladding with 2 more brass bands



The boiler clack valves fitted,one each side



2 blowdown valves fitted. One each side



The boiler is pushed firmly into the smoke box. A couple of screws, one each side is all that is needed



The following 7 photos are more trial assembly work















Cheers

Rich




 

Online mike mott

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Re: CONWAY 0-4-0 3 1/2" GAUGE LOCO
« Reply #905 on: July 28, 2019, 06:12:36 PM »
Wow that is looking really spiffy.

Mike
If you can imagine it you can build it

Online Johnmcc69

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Re: CONWAY 0-4-0 3 1/2" GAUGE LOCO
« Reply #906 on: July 28, 2019, 08:51:02 PM »
"WOW" is right...that is BEAUTIFUL!

 John

Offline cnr6400

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Re: CONWAY 0-4-0 3 1/2" GAUGE LOCO
« Reply #907 on: July 28, 2019, 11:09:13 PM »
 :ThumbsUp: :ThumbsUp: :ThumbsUp: :popcorn: :popcorn: :popcorn:

Looking great Rich!

Online Kim

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Re: CONWAY 0-4-0 3 1/2" GAUGE LOCO
« Reply #908 on: July 29, 2019, 02:25:39 AM »
Couldn't agree more!  That is really looking good!  :ThumbsUp: :popcorn:
Kim

Offline Firebird

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Re: CONWAY 0-4-0 3 1/2" GAUGE LOCO
« Reply #909 on: July 29, 2019, 08:05:11 PM »
Hi

Thanks Mike, John, cnr6400, and Kim  :ThumbsUp:

Although I have many of the parts already made they all seem to need fettling to achieve a good fit so its taking time.

Cheers

Rich

Offline Roger B

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Re: CONWAY 0-4-0 3 1/2" GAUGE LOCO
« Reply #910 on: July 29, 2019, 08:17:22 PM »
That's a lot of bits to assemble  ::) Looks excellent  :praise2:  :praise2:
Best regards

Roger

Offline Firebird

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Re: CONWAY 0-4-0 3 1/2" GAUGE LOCO
« Reply #911 on: August 18, 2019, 03:12:56 PM »
Hi

Thanks Roger :ThumbsUp:

I haven't posted much lately but I have been busy with lots of fiddly fettling and modifying etc.

Another bit of tool making which you might be interested in. The blow down valves need a square key to open and close them.

Here's my method of machining a square hole.

Start with a bit of round stainless steel and drill to a depth of about 1/2"



Move over to the mill and machine a slot



Machine a bit of stainless to the same width as the slot





Silver solder in place making sure the square hole is true



Machine away the excess. Cross drill for a T bar handle





Which leaves me with a key with a square hole





Cheers

Rich

Offline cnr6400

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Re: CONWAY 0-4-0 3 1/2" GAUGE LOCO
« Reply #912 on: August 18, 2019, 03:21:22 PM »
Nicely made Rich. Now you can blow the boiler down AND wind the clock!  :Lol:

Offline Firebird

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Re: CONWAY 0-4-0 3 1/2" GAUGE LOCO
« Reply #913 on: August 18, 2019, 03:56:09 PM »
Hi

Thanks cnr6400 :ThumbsUp:

I have moved the lubricator from the front of the running board to underneath the running board on the rear left hand side. In its previous position the linkage was too long and exposed and had already been knocked a few times.



Its mounted on a stainless steel plate. You can also see the much shorter linkage



The bottom connection fitted and a start made on running the 1/8" pipe





Cheers

Rich


Offline Firebird

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Re: CONWAY 0-4-0 3 1/2" GAUGE LOCO
« Reply #914 on: August 18, 2019, 04:10:44 PM »
Hi

The oil check valve fitted



Cheers

Rich