After bragging about.......

[prezoom]

Time will take its toil. I mean, what lasts more than 10 years on a Lotus? Thinking I had solved the dreaded oil cap mist leak, last weekend I found oil seeping from around the cap. Oh, the embarrassment when I opened the hood at a Cars & Coffee. Rummaging through "never throw anything away" bin, I found a piece of wet suit rubber that is a bit thicker than what I had cobbled up previously. Spongier than what it was replacing, making it much harder to twist the cap closed, hopefully it may stop the dreaded leak. Years ago, I had picked up a cut off piece of the material at a dive shop, can't remember why, but it must have been important at the time. Yea, I know, wet suit rubber is not an off the shelf (floor?) item in some areas. But it may help the cars near our coasts and in OZ. A bit of trimming with a pair of scissors and a razor knife, I had a reasonable facsimile of the old gasket. I think/hope it is of the closed cell foam variety. If it works and only lasts 10 years, it will then become my grandson's problem.

[Chancer]

If it wasnt closed cell you would have to dump your weight belt (and hope) to return to the surface.

[nmauduit]

for what it's worth, one can source nitrile foam or rubber of all sorts now - should be a tad more impervious or durable than neoprene to the news compounds one find in fuel or oil these days...