12-05-2019, 12:23 AM
(This post was last modified: 12-05-2019, 12:29 AM by Duncan Grimmond.)
Roland & Dave, sure, use the photos. I hope they serve as a warning.
My technique for soldering a pinhole or patch (using a gas-fired iron) has been to run a vacuum cleaner hose from a running engine exhaust pipe into the filler tube. Lots of carbon monoxide/carbon dioxide/water vapour to expel any oxygen and if there is no oxygen there cannot be any combustion. A good wash out with soapy water, dry, then diesel or paraffin to remove flux residues and check for leaks.
Most fittings like fillers,drains,gauge mounts and breathers seem to be fitted and sealed by soldering and I think it's best to avoid over-heating with an oxy-acetylene flame.
My technique for soldering a pinhole or patch (using a gas-fired iron) has been to run a vacuum cleaner hose from a running engine exhaust pipe into the filler tube. Lots of carbon monoxide/carbon dioxide/water vapour to expel any oxygen and if there is no oxygen there cannot be any combustion. A good wash out with soapy water, dry, then diesel or paraffin to remove flux residues and check for leaks.
Most fittings like fillers,drains,gauge mounts and breathers seem to be fitted and sealed by soldering and I think it's best to avoid over-heating with an oxy-acetylene flame.