73 M110...

Strangely, around the time I put on the Weber, oil began leaking at pretty much every gasketed joint of the engine. I had a change of 10W40 in there from the colder days. Even so, oil is suddenly getting past all seals?

I did find a nice puddle of gas left behind in the manifold by the Solex when I removed it so I'm wondering if the oil got broken down. Dipstick and oil cap have a faint gassy smell, but nothing major.

Also the breather hose used to have slight vacuum, now it's pushing a steady stream of oil vapour....

Any thoughts?