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Post by jack81007 on Apr 17, 2016 16:43:02 GMT
Hi all
I am just in the throws of testing my 7 1/4 boiler (currently at towns pressure) and i have weeping stays,no sooner do i repair them then the next ones leak,any tips on how to stop the weeping?
Cheers
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Post by jack81007 on Apr 17, 2016 18:24:33 GMT
Copper and Silver solder
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Post by jack81007 on Apr 17, 2016 18:33:36 GMT
Paul
The stays are copper rod leaks are inside and outside and there is about 1/2 sticking outside and about 1/16 inside the firebox,silver solder is the old cadmium type sorry no other details than that.
Someone suggested warming it up with Radweld in?
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Post by jack81007 on Apr 17, 2016 18:47:22 GMT
The other option i have considered is making some thin brass washers to go over the stays to get more contact area
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Alan
Part of the e-furniture
Posts: 288
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Post by Alan on Apr 20, 2016 8:37:59 GMT
How are you trying to resolder the stays. A nice controlled Oxy acetalene, oxy propane flame or an all over propane jobby. My boilers were transformed with oxy propane heat.
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Post by jack81007 on Apr 21, 2016 6:18:41 GMT
Oxy Propane
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Post by Jim on Apr 25, 2016 7:09:31 GMT
I've seen the equivalent of Radweld used to effectively seal weeping stays. Can't recall the name of stuff but it was among the radiator, bars leaks products and consisted of copper 'dust' in a suspension of water glass. I imagine places like Halfords in the UK or Auto-Barn out here would stock it or something similar. It certainly did the trick with the boiler tight at 200psi.
Jim
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Post by eightpot on Apr 25, 2016 11:35:12 GMT
Warning - the problem with 'Radweld' is that it makes the boilers prime, as I found out many years ago!
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jackrae
Elder Statesman
Posts: 1,333
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Post by jackrae on Apr 25, 2016 12:32:01 GMT
In a previous life, an egg cracked into a car radiator cap was a reasonable way to cure water leaks.
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jem
Elder Statesman
Posts: 1,067
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Post by jem on Apr 25, 2016 17:09:16 GMT
jackrae, was that white and yoke please
best wishes
Jem
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jackrae
Elder Statesman
Posts: 1,333
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Post by jackrae on Apr 25, 2016 17:55:48 GMT
Yes it was a whole egg but i think it was the white that did the blockage. Mind you that was in the days of non-ECU side-valve engines that were built like the proverbial outhouse, so abusing an engine with the occasional egg was a common practice to cure leaks, especially after antifreeze had been added, which was almost guaranteed to cause problems.
Old joke : Man phones AA and said his engine won't start. "Have you pulled out the yolk" they ask. Man eventually gets back on phone and says its all white now.
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robmort
Hi-poster
3.5" Duchess, finishing 2.5" gauge A3 and building 3.5" King
Posts: 172
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Post by robmort on Apr 27, 2016 15:24:30 GMT
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Midland
Elder Statesman
Posts: 1,871
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Post by Midland on Apr 27, 2016 20:53:53 GMT
That is what I did but Loctite drew me to a higher spec that took a higher temperature. Contact them for it but it fixed my boiler up to 200 psi (by mistake by the bolier tester I might add) running at 90!) Used a henry. Good luck D |
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Post by dhamblin on Oct 10, 2019 17:48:59 GMT
That is what I did but Loctite drew me to a higher spec that took a higher temperature. Contact them for it but it fixed my boiler up to 200 psi (by mistake by the bolier tester I might add) running at 90!) Used a henry. Good luck D David - can you remember what the better alternative was to Loctite 290? Looking at options for sealing the two weeping stays on Britannia's boiler. Thanks, Dan |
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Midland
Elder Statesman
Posts: 1,871
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Post by Midland on Oct 10, 2019 18:36:50 GMT
Dan
Yes it was something like 640. I bought a bottle, small and still £40-odd, as an alternative to a new boiler. I lent it to Peter Squire who I will see in ten days at the Midland X on the Southern Fed stand. I am on duty on Sunday or I could ask him to bring is and you can collect it from him. he will be there Sat and Sunday.
Cheers David
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Post by dhamblin on Oct 10, 2019 21:12:21 GMT
Thanks David, that's very kind. I'll be there on Saturday this year, so if he is ok to pass it across I can pick it up then. Plan to do the work in November so can return by post?
Regards,
Dan
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Midland
Elder Statesman
Posts: 1,871
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Post by Midland on Oct 25, 2019 18:49:04 GMT
Dan
Found the loctitie on our stand so brought it home. Temporaily snatched by Simplyloco (to whom I promised it months ago) so you are next on the list. Will post it too you.
David
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Post by dhamblin on Oct 26, 2019 20:57:11 GMT
Not sure what happened as I did ask on the SFME stand on Saturday and they didn't know anything about it! Not to worry - I can get some from RS catalogue and it will probably come in use for other occasions.
I had a nice chat with a gentleman on the Coventry MES stand at the show about the technique so I've got a couple of bits to make too.
Regards,
Dan
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Midland
Elder Statesman
Posts: 1,871
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Post by Midland on Oct 27, 2019 21:38:15 GMT
Dan
This stuff is very expensive so be patient for a couple of days and I will get it to you once SL have got his boiler watertight!
David
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Post by Jim on Oct 28, 2019 5:44:03 GMT
Warning - the problem with 'Radweld' is that it makes the boilers prime, as I found out many years ago! We had no problems with priming and would be more than happy to use it again should the need arise. Jim.
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