Originally Posted by piccolovic (Post 2273599)

I don't know about the '80s, but in the late 70s, the injector bodies had a top and a bottom that screwed together. There was an O-Ring or compression gasket between them. Inside there was a high tension spring, and the needles. Did they change much in the 80s?

Originally Posted by lietuviai (Post 2273658)

They certainly must have. The injector bodies on the 80's injectors were assembled together using threads that have an interference fit elimimating any need for a gasket or o-ring.