Weird interference issue with plenum installation - ZR-1 Net Registry Forums

Aurora40 · 03-17-2010

I've always had this issue where the plenum coolant line, PCV line, and the I/H coolant extension interfere. I never thought much of it until I put two and two together about the slowly disappearing coolant, and the fairly clean nature of the two intake runners next to the coolant passage.

Here is a picture:

I believe this keeps the plenum from really seating properly here. If you feel it, you can not move the PCV line, it is definitely pinched. The last time I removed the plenum, I hammered the PCV line slightly oval to try to fix it, but that didn't really help.

Has anyone seen this before? Any thoughts? I think the coolant nipple on the plenum should be rotated to point more vertical, but I'm not sure how they are retained. Can I just twist it up? Or will that ruin it or cause it to leak? I also thought I could grind that bit of the coolant extension down, but it seems like there should be a less destructive way to fix it.

03-17-2010	#1
Aurora40 Join Date: May 2005 Location: Leesburg, VA Posts: 2,704	Weird interference issue with plenum installation I've always had this issue where the plenum coolant line, PCV line, and the I/H coolant extension interfere. I never thought much of it until I put two and two together about the slowly disappearing coolant, and the fairly clean nature of the two intake runners next to the coolant passage. Here is a picture: I believe this keeps the plenum from really seating properly here. If you feel it, you can not move the PCV line, it is definitely pinched. The last time I removed the plenum, I hammered the PCV line slightly oval to try to fix it, but that didn't really help. Has anyone seen this before? Any thoughts? I think the coolant nipple on the plenum should be rotated to point more vertical, but I'm not sure how they are retained. Can I just twist it up? Or will that ruin it or cause it to leak? I also thought I could grind that bit of the coolant extension down, but it seems like there should be a less destructive way to fix it.