Brian Dorricott 1 Posted April 15, 2021 Share Posted April 15, 2021 Not sure if this should be posted elsewhere so put in here. I was hoping for suggestions I have Zenoah 38cc in an LMA trainer and the exhaust currently blows back down the fuselage making it rather messy , I was hoping to fit some exhaust stacks-? or pipes to the current silencer and sealing up the existing slots by hammering flat and sealing. I have some brass 10mm tube and the exhaust looks like steel , I have a fairly hefty blowtorch with several interchangeable nozzles so heat isn't a problem . What should I use to for the dissimilar metals ie brass and steel to join and make a reasonable seal ? Brazing comes to mind but I can't find any rods online that say they are suitable for different metals , is there anything else I can use would silver solder do it and if so where do get your supplies from . A pointer at a Utube video for dummies would be nice . Plan B is get some steel tube and break out the mig welder but I'm well out of practise with that so really don't want to do that if possible . As usual any help appreciated thanks Quote Link to comment Share on other sites More sharing options...
sticky fingers Posted April 15, 2021 Share Posted April 15, 2021 Brian ,you should be able to silver solder the dissimilar metals brass and steel , silver solder is available with the flux already on the rods ,just be careful with the heat y Quote Link to comment Share on other sites More sharing options...
Phil McCavity Posted April 15, 2021 Share Posted April 15, 2021 Silver solder for sure, I use THESE. Quote Link to comment Share on other sites More sharing options...
Outrunner Posted April 15, 2021 Share Posted April 15, 2021 https://cupalloys.co.uk/ Is my go-to place for silver soldering supplies and advice, very helpful people. Quote Link to comment Share on other sites More sharing options...
Brian Dorricott 1 Posted April 15, 2021 Author Share Posted April 15, 2021 I'll order some and update progress later . Quote Link to comment Share on other sites More sharing options...
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