Office of Steam Forum for Model & Toy Steam Gas & Hot Air Engines

The firebox/boiler and engine are removed from the plinth while I repaint it in a more original color. I took this opportunity to better clean the firebox. During this cleaning, I noticed soap bubbles coming from the rear boiler cap as I flushed the boiler. I didn’t notice this leak running on air or the one time the engine ran on steam. The pictures show the problem area.

I have to give some credit to Woe is me, as he spotted this issue with the boiler in the 1st pictures I posted.

I need some repair advise from more experienced enthusiasts. I’m torn between leaving the boiler on the firebox and re-soldering the leaking section only or removing the boiler from the base and re-soldering the entire cap.

Thanks in advance for your suggestions





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Only one way to do it properly .
Remove boiler from fire box .
Remove end cap clean all solder and resolder .

To remove the endcap i wrap the boiler in a wet but wrung out tea towel leaving the endcap and an inch or so of boiler exposed ..
I use a vertical gas bottle and torch and rotate the endcap around in the flame .
I use the back 0f a knife and slide the knife gently along the boiler and tap my way around the endcap untill,it come off . At which point it will roll 0f the bench and under the fridge . The wife will come in and demand to know why her tea towel is scorched . Then she will notice the smell emanating from under the fridge from the hot endcap and dust .

Cheers
Dennis