Does anyone know where I can get a blow-by can for a 400i?
avaleibel at https://www.eurospares.co.uk/parts/ferrari/400i-1983-mechanical/engine/blow-by-system-37677/110460 für 185,-- Pound
What if any maintenance is required on these? Should they periodically be removed and cleaned out with a solvent?
Drive the car once in a while? Seriously, I'll bet the OP has to replace it because of rust issues (water condensation on the inside rusting the unprotected steel). When the rusty flakes collect and block the liquid drain line port that's when they need an internal rinse out.
Actually, I stripped the old paint off to find a million rust holes. Ferrparts is sending me a used one.