Cut a template for the outer skin of the sump tank lid from clear plastic and pondered. Taped off the sight gauge.
Bought a 45 degree double flare kit and played. The plan is to form the first part of all the flares with this, then finish them with a 37 degree single flare kit from the SAAA CH20 toolbank. Was stunned to discover my rather senior contact with SAAA had not heard of double flare!
Trimmy, trimmy
Making a template and giving myself a hernia at the same time...