That doesn't seem to be the problem on my car.
I don't see the connection between the diaphram and sucking air (or burning oil!) anyhow.

I hope this can be resolved, I would hate to have to sell this car!

Perfect white interior, working instrument panel (& clock!), 4 speed manual tranny(!), 6 1/2" wide rims with new perellis...

we rebuilt the engine ourselves so I haven't put much money into this car yet (that's how I like it).

But why did it start burning oil suddenly?