REVERSING PCV FLOW

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   Here's a few pics to clarify. The carb is a 650 Thunder series Edelbrock with a front facing inlet for the PCV valve. The ID of the stock AMC oil filler tube is real close in size to the older "valve cover style" PCV valves used by various manufacturers. The rubber grommet supplied with those PCV valves is listed as 1
.22" OD with an ID of 3/4". The valve cover hole (very similar dimensions as the filler tube) allows the grommet to pop inside the thin wall of the valve cover & seat itself. The problem with the smooth wall oil inlet is there is no lip; so a lip needs to be fabricated on the inside of the tube for the grommet to seat itself. After looking at my stock manifold sitting in the corner; it looks like a few slits folded inside might work. In my case... both the filler tube & the rear piece (piece filter is attached to) are custom machined for fitment.

Dean

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rogue_66 Members Profile Send Private Message Find Members Posts Add to Buddy List AMC Nut Charter Member Joined: Jun/29/2007 Location: Oregon Status: Offline Points: 274	Post Options Post Reply Quote rogue_66 Report Post Thanks(0) Quote Reply Posted: Oct/25/2014 at 1:08am
	Here's a few pics to clarify. The carb is a 650 Thunder series Edelbrock with a front facing inlet for the PCV valve. The ID of the stock AMC oil filler tube is real close in size to the older "valve cover style" PCV valves used by various manufacturers. The rubber grommet supplied with those PCV valves is listed as 1 .22" OD with an ID of 3/4". The valve cover hole (very similar dimensions as the filler tube) allows the grommet to pop inside the thin wall of the valve cover & seat itself. The problem with the smooth wall oil inlet is there is no lip; so a lip needs to be fabricated on the inside of the tube for the grommet to seat itself. After looking at my stock manifold sitting in the corner; it looks like a few slits folded inside might work. In my case... both the filler tube & the rear piece (piece filter is attached to) are custom machined for fitment. Dean


mcjarv Members Profile Send Private Message Find Members Posts Add to Buddy List Supporter of TheAMCForum Joined: Sep/12/2011 Location: Evansville/IN Status: Offline Points: 741	Post Options Post Reply Quote mcjarv Report Post Thanks(0) Quote Reply Posted: Oct/25/2014 at 11:28am
	I looked high and low and never seen a stamped steel breather with a pcv valve inside, must be an early one. The one I used was marked "S6000 PCV Breather" and I was able to use the "valve cover grommet" as was,,,,fit the oil fill pipe perfectly shoved all the way in as I would assume the Earl's mentioned previously would also. I only mention it because this is a worthwhile modification, I actually think plumbed the stock way it hindered my rings from seating. Thanks for the followup Mike Edited by mcjarv - Oct/26/2014 at 6:52am
	1969 S/C Rogueler ,