Well I went under this morning and it's not great news. Access is pretty much impossible without dismantling some of the components, and it's hard to see the breather, even with the camera thrust into the cavity.
Not here.....
But here.....
I understand the ins and outs of crankcase pressure. My first Midget had a pancake valve over the inlet manifold, inside which was a rubber diaphragm. This was standard BL for a while. When the diaphragm got pin-holed, inlet vacuum had the ability to suck oil out of the sump and turn it into a smokescreen. That was my first taste of emission controls way back in 1971.
I don't particularly want to vent to atmosphere, so I will stick with what I have for now. Interestingly that tank isn't airtight. I tested it and there's an air bleed through the cap, which I suspect is by design. So it will have an effect on crankcase pressure in a minor way.
So I turned my attention to the air intake, because last time I ran out of Reflect-a-Cool before I could do the front section.
The front of this is 'unfinished'.
I fitted a neoprene edge.....very fiddly, and took three attempts! And added Reflect-a-Cool.
