Coad,   There should be a paper gasket between the cylinder & block. I usually make my own out of cartridge (drawing) paper. I also tend to use a very thin...

Thank you. I appreciate the information. Cyclemasters are a bit thin on the ground in this country, so this group is a fantastic help. The condenser is...

... I've used Wellseal, which is a shellac-based sealant, on the head of my NSU Quickly - no gasket - (as well as my Velo Venom) with success. Don't know if...

I have always used a product call welseal discovered it being used by motor cycle race teams years ago and was converted straight away. A tube last a life time...