7mm On Heather's Workbench - Prairie ago-go

Heather Kay

Western Thunderer
Ah, now I’ve seen that on other photos. I think it’s something to do with the ATC fittings. The extra hole on the model is matched on each side, too.
 

simond

Western Thunderer
It’s definitely bigger but it does look rather like the ignition coil on my old Mini...

I’m sure there’s a better explanation.

ATB
Simon
 

Dave Holt

Western Thunderer
Heather. I'm sure you're right. Although the diagrams and description of the GWR ATC system do not refer to a timing cylinder, the BR ATC/AWS certainly does. The purpose is to slow down the loss of vacuum in the train pipe to give the driver enough time to cancel the indication before the brakes are fully applied automatically.
Dave.
 

Heather Kay

Western Thunderer
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Coming together. Photos of 4567 show the vents moved about on the tank tops. Before the war, which is what I’m aiming at, the vents are as I’ve fitted them. Post-war, the vents moved to align with the front of the firebox. I’m guessing the tanks were replaced at an overhaul.

I am debating whether to fit the oil boxes on top of the tanks, with the majority vote coming down in favour of leaving them off.
 

Heather Kay

Western Thunderer
You might want to shout before you use the hot stick although it looks like you've guessed correctly this time

Well, there’s no point having copious photos on hand if you can’t use them! Thanks for the confirmation shots, though. Locating the smokebox bracket remains to be done. Actually, a lot around the smokebox remains to be done.
 

Heather Kay

Western Thunderer
The bit I always most dislike is making sure all the wheels and wiggly bits fit together without hitting each other. I find it stressful.

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As it turned out, perhaps because I was careful earlier on, it all fitted together nicely. I had spent a while rebuilding the vac pump bracket so it can be demounted to let the crosshead out. A little more fettling of bushes and stopping wheels wobbling slightly, and I think I shall call that job jobbed.
 

paulc

Western Thunderer
The bit I always most dislike is making sure all the wheels and wiggly bits fit together without hitting each other. I find it stressful.

View attachment 127794

As it turned out, perhaps because I was careful earlier on, it all fitted together nicely. I had spent a while rebuilding the vac pump bracket so it can be demounted to let the crosshead out. A little more fettling of bushes and stopping wheels wobbling slightly, and I think I shall call that job jobbed.
Thats a proper job then , well done Heather .
Cheers Paul
 

Heather Kay

Western Thunderer
The snagging list shrinks.

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Can you see what I’ve done? Oil pot corks is what.

875C7FF9-5BAA-47E9-987D-5092CECCC77C.jpeg

More oil pots on the slide bars. I think these are Peter Roles castings.

I also made and fitted the tank lifting rings. I need to chat to a couple of peeps before I can do the next big stage.
 

Heather Kay

Western Thunderer
I thought things were going a bit too well. Who's the muppet that forgot to tighten the grub screw on the gearbox final drive before a test run, when there’s zero tolerance between it and the first drive gear? :oops::rant::mad: :(

No prizes. I’m off to chat to ABC and see if we can repair things…

EDIT: a bit more poking about, peering at things, and trying things out seems to have cured whatever noise problem I had. I’ve just assembled it all again, tightened the screw, and got it running up and down the test plank really nicely. *shrug*
 
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Phil O

Western Thunderer
When I did that with the 1361, I lost the grub screw and the gear on the axle just rotated around it. Once the cavalry turned up with the replacement, I then had to tentatively run the motor to get the final gear in a position where I could fit the grub screw.
 
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