I must admit I used epoxy resin Ciba/G 3600 and not vinyl ester. I am going to try again using vinyl ester.
I am doing another trial with shell/liberty 98 and BP 98 with smell. In every case the shell smells like turps is added where as BP smells normal like you expect fuel to smell like. People are smelling the difference 100%. Some are describing the smell as paint thinners. Shell is a golden bright yellow colour where BP is more normal fuel colour. In germany they have zero issues of fuel turning clear fuel lines a real dark brown so dark you can not see brought be in 2 months. Sure happens here with liberty /shell So 98s are not the same. Ian mcphee On 04/02/2015 1:31 pm, "DMcD" <[email protected]> wrote: > >>I'll stick to Avgas in the BD-4 even though the 7:1 compression ratio > engine (same as Super Cub) can handle unleaded from an octane rating basis. > > Unless things have changed, with some two strokes used in SLGs like > the Solo engines, the manufacturer recommends using 95, not Avgas. The > claim is that Avgas makes the engine run rougher and vibrate more than > 95. > > It's difficult to get a real picture but a lot of the US experience, > where they tend to overcompensate and use Avgas instead of 95, seems > to suggest they have more problems overall, not less. Then again, they > can't get the recommended Castrol 2 stroke oil either. > > I tend to agree with Mike here regarding resins too. It's really > difficult to point your finger at the fuel without knowing more about > the resins used in the layup. > > And the problems and expense of wing fuel bags seem to be not worth > the effort. The recommendations in the manual that I have read say > that they cannot be left with fuel in overnight, that they cannot be > entirely drained either but need to have a small amount of oil in > them. They have a very short life span (8-10 years?) and are sodding > expensive to replace. > > Probably cheaper to replace than a fuselage mounted glass tank though! > > D > _______________________________________________ > Aus-soaring mailing list > [email protected] > To check or change subscription details, visit: > http://lists.internode.on.net/mailman/listinfo/aus-soaring >
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