Quote:
Originally Posted by rsk289
Our supreme guru, one Dan Case, has very generously sent me more information. Thank you, Dan.
Now... how to find a PCV valve like the 'square' brass one?
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Throttle linkage system parts information, you’re welcome.
The brass 90° elbow is not rare. The production valve is uncommon now. Many thousands were used in production but many thousands got replaced during service or tossed in the trash too. A production valve with anything left of the round paper tag is very rare. I have only seen one production valve in a service part package in lots of years of paying attention. Mr. Mannel’s book covers the evolution of the valve design in some depth, external what you can see and internal to address issues in use. The most common way to get both a production valve and brass elbow as used in 1964-65 Cobras is from any 289 V8 PCV set up from its 1964 Fairlane or Comet valve cover. The most common situation to find them is where somebody is trying to sell a set of nasty old valve covers with the elbow and valve still in place in its PCV side valve cover. (Just being old doesn’t mean anything because PCV valves were parts frequently changed during routine service instead of dismantling them for cleaning.) As long as the internal parts are not badly corroded they can usually be cleaned and reused.
Dan