Replacing my intake manifold & valve cover gasket **PIC**
#1
Replacing my intake manifold & valve cover gasket **PIC**
Looking at the picture below, the way Nissan have it running is #1 connected to #1, and #2 connected to #2. Because of limited space I have to cut the lines in order to remove the manifold. The question I have is when it's time to reinstall, can I just run a coolant line straight from #1 to #2 (highlighted in pink) and completely ignore the stupid connection (highlighted in green) on the manifold?
Last edited by kroze; 10-14-2012 at 10:10 AM.
#3
No, That cools your egr and partly your UIM where the EGR connects. If your deleting the EGR you'd be fine but if not you need that coolant line. Just cut it and go buy a foot long section of new hose for a few bucks and redo the lines. I alos got rid of the pinch style hose clamps for the screw plumbing clamps.
#5
i bypassed mine because of my spacers. it doesnt actually cool the UIM. cant you see it? just look at it. you just make sure you keep the lines out of the way like zip tie them to a line along the firewall.
#6
Not sure why it needs to be cut when you can just disconnect them. I've removed my manifold 4 times and never cut those lines. It's a PITA to get off but you can do it when you loosen the manifold from the block.
#7
It looks like it may just hold the line but I imagine it cools it a bit since its direct metal to metal contact with the UIM. Forgot about the cooling line on the EGR valve itself which probabaly cools the gas quite a bit before it reaches the UIM.
#19
Funny thing is, it looks like the tube seals were replaced at some point but the moron who installed it put the tube seals upside down on the valve cover near the firewall
#21
No, That cools your egr and partly your UIM where the EGR connects. If your deleting the EGR you'd be fine but if not you need that coolant line. Just cut it and go buy a foot long section of new hose for a few bucks and redo the lines. I alos got rid of the pinch style hose clamps for the screw plumbing clamps.
I've had 4 4th gens and three of them had at least one tube seal that leaked.
#22
That's how my project started out...fix a rear valve cover leak,and a front left strut, which turned into EVERYTHING else!!! I too just cut that line, maybe I just ran out of patience, considering I cut it with a saws-all and a long blade! I was thinking the same thing about bypassing the UIM cooling line. But I didn't think of the EGR (I'm keeping mine) heat soak. Wish somebody, or myself would have taken a temp reading at idle with the line on, and with it bypassed. I'm a little sketchy on by passing it now. I plan on doing the 00VI install, and I read it was necessary to bypass that line anyways, right? Is that again, 00VI w/o an EGR or w/ an EGR (or does it matter)?!?
Just to show you my mess...
Just to show you my mess...
#23
they install the spark plug tube seals upside down |\ /| (basically the smaller diameter side is now facing the engine instead of the opposite.
Last edited by kroze; 10-24-2012 at 11:54 AM.
#24
That's how my project started out...fix a rear valve cover leak,and a front left strut, which turned into EVERYTHING else!!! I too just cut that line, maybe I just ran out of patience, considering I cut it with a saws-all and a long blade! I was thinking the same thing about bypassing the UIM cooling line. But I didn't think of the EGR (I'm keeping mine) heat soak. Wish somebody, or myself would have taken a temp reading at idle with the line on, and with it bypassed. I'm a little sketchy on by passing it now. I plan on doing the 00VI install, and I read it was necessary to bypass that line anyways, right? Is that again, 00VI w/o an EGR or w/ an EGR (or does it matter)?!?
Just to show you my mess...
Attachment 2759
Just to show you my mess...
Attachment 2759
#26
#27
I would think so...I just let myself get spooked for some reason. Screw it, it's being bypassed (when ever I get to put it all back together!)
#28
my boys is back together now. didnt bypass it nor did we make the hose bigger because its really not that hard to get off. replaced a couple hose clamps tho. everything went back together fine but its idling at around 1500 now. thinking it might be the iacv.
#29
No as in the tube seals are taper, they put the tube seals upside down so that instead of it looking like this when you put the valve cover back |/ \|
they install the spark plug tube seals upside down |\ /| (basically the smaller diameter side is now facing the engine instead of the opposite.
they install the spark plug tube seals upside down |\ /| (basically the smaller diameter side is now facing the engine instead of the opposite.
#31
Look for posts from Jamerica. Great pics of the fast idle cam and its issues, which may be yours. If I find the link I'll post it as well.
EDIT: Found it...here you go;
http://forums.maxima.org/4th-generat...placement.html
Last edited by dwapenyi; 10-25-2012 at 10:45 AM.
#32
Thread
Thread Starter
Forum
Replies
Last Post
vingodine
5th Generation Classifieds (2000-2003)
45
05-21-2016 12:46 PM
MAXSE5SPD
Other For Sale/Wanted
2
08-23-2015 12:06 PM
Maxboy23
5th Generation Maxima (2000-2003)
7
08-11-2015 11:59 AM