I don't know about others on here, but I'm confused!  Post states that the rear draft tube opening is closed ?..then the photo shows what appear to be a PCV valve in that position.. then an other hose going to a fitting connected to what?.. Like to help but I'm lost..   


Paul

MUMMERT offers two styles of covers, the early road draft version (with the road draft on the LF engine lower skirt) and a style for later engines that actually had a road draft tube on top of the engine or PCV System.



The Y ran from 1954 to 1964 so there were several design/revision of CCV (Crankcase Ventilation)

Does this help?

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I have a pcv setup like that on my truck.  Change the pcv valve.  I had issues and it was bad brand new out of the box.   $3-4 for another one is cheap insurance. Otherwise you've got a lot of blowby.   

Sorry.  The road draft tube was removed and was sent right to the back of the intake.  It was a PU engine but had an earlier style pan that I replaced with a new pan and PCV.  The PCV now goes to the hole on the intake just before the carb.  The connection in the back only seemed to feed 2 cylinders.

The rings must be seriously worn.  Oil is coming from the oil fill all over the passenger side and the tail pipes smokes after acceleration.  It goes through a quart after a couple hundred miles.

I disconnected the PCV and ran a heater hose for a draft tube to see if the smoking tail pipe remains unchanged.

1959 Edsel Ranger, 1916 Ford "speedster"
"I may not be a rich man, but I can give you a million dollars' worth of bad publicity."

Running the hose might tell you something. But the symptoms you describe, oil pumping out the oil fill and smoking is classic for a PCV valve stuck closed as 1960 stated above. I’ve seen cars with closed PCV systems (oil fill routed to the air cleaner) pour so much oil in the carb the engine loads up and quits.

miker
55 bird, 32 cabrio F code
Kent, WA
Tucson, AZ

Skyhunter: Don't know if this helps at all, but, your statement that " the rear of the manifold only appears to feed from two cylinders, is incorrect. That orfice should split inside & feed from 4 cylinders.. As others have indicated you may have a defective PCV valve & or a serious problem with engine internals. Need to check out those possbilities.    


Paul

Just for discussion, describing Mummert's Valley covers as "bling" is pushing it. Quite often original valley covers from engines that were out of chassis or say from a salvage yard have distorted or damaged valley covers that may not seal properly.  But, more importantly the rear vented model is designed to replace the side of block canister unit & permit use of a rear crankcase draft tube or better yet a baffled PVC setup..  That's hardly bling!


Paul

The vacuum source on the ECZ-B intake does draw from four runners, 7-8 and 3-4 but the main draw will be 7 and 8 runners because of it's (vacuum boss) positioning on 7-8 runners. It is not meant for a PCV vacuum source as the engine crankcase fumes will overload those cylinders and not be distributed equally among all cylinders.

Also, any oil leak (gasket/seal) in the engine assy will not only leak oil but will lessen the affect of the PCV System as the internal vacuum draw will be lessened through the valve/system with outside air and also possibly disturbing fuel mixture ratio.

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Paul,


1959 Edsel Ranger, 1916 Ford "speedster"
"I may not be a rich man, but I can give you a million dollars' worth of bad publicity."

You stated that you removed the pcv and ran a draft hose.   Did you watch the end of the hose to see how much smoke comes out of the hose?   Usually smoke after you decelerate is an indication of bad valve stem seals.  You could also have bad valve guides.   Have you had valve covers off and check to make sure oil drains for the heads are clear?