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KULTULZ · 11-13-2021, 09:43 AM

The system design is very simple. Instead of providing a partial vacuum with a road draft tube, manifold vacuum (regulated) was used to provide the draft to vent the crankcase via the original early Y-BLOCK block skirt design road draft. The 55-56 had no provision (opening) on the valley cover to retrofit a 1961/ OEM PCV style... EDIT ... (EXCEPT 55 BIRD - It used a regular road draft tube and modified valley cover).

The system was also CLOSED EMISSION whereas design would not allow it (vapors) to vent to open atmosphere ... EDIT ... through an open filtered oil fill cap (OPEN DESIGN). It vented vapors directly to the ACL for re-burn.

11-13-2021, 09:43 AM	#13
KULTULZ Senior Member Join Date: Aug 2012 Location: IN A 'GALAXIE' FAR FAR AWAY Posts: 6,485	Re: California pcv ?? The system design is very simple. Instead of providing a partial vacuum with a road draft tube, manifold vacuum (regulated) was used to provide the draft to vent the crankcase via the original early Y-BLOCK block skirt design road draft. The 55-56 had no provision (opening) on the valley cover to retrofit a 1961/ OEM PCV style... EDIT ... (EXCEPT 55 BIRD - It used a regular road draft tube and modified valley cover). The system was also CLOSED EMISSION whereas design would not allow it (vapors) to vent to open atmosphere ... EDIT ... through an open filtered oil fill cap (OPEN DESIGN). It vented vapors directly to the ACL for re-burn. __________________ ***** We should have a contest. The player has to start at the very last post of a thread & then try to guess what the OP's original question was about ... Last edited by KULTULZ; 11-15-2021 at 02:57 PM.