Resealing the tappet covers

The B has had an oil leak down the side of the engine from the tappet chest covers. I think it is a mix of the rubber seals on the washers failing and the seals gradually perishing.

My money was on the bolt washers, but to replace those I would need to remove the exhaust manifold so you might as well replace all the seals. Fortunately this coincided with replacing the exhaust.

I last did this about 12 years ago but luckily I write up this stuff so I don't have to remember which seal goes where.