Offroad-Express

Alright I have got myself a 94 td27 Terrano, but I cannot find the egr. Can someone show me a photo of where it is located?

Bear in mind I am a complete novice...

Cheers.

Hi, this is from the R20, same engine sans intercooler. Should give a general idea.

Hey sorry I still can't find it. I am probably looking at it, but just don't know it...

Mckev wrote:... but I cannot find the egr...

Why do you want to remove it? You really need to understand what it is and does before randomly remove bits. EGR stands for Exhaust Gas Reticulation System. For it's removal, you need to block/remove the exhaust egr valve (under back of intake manifold) by spading/plateing, then tie open the intake butterfly or remove then block pivot holes, and block off the associated vacuum lines.
Hope this helps
Jeremy

I never said I wanted to remove it. Well, maybe not just yet. Just looking out of curiosity, trying to understand what everything is. I've read a lot on here about blocking the egr off, just wondering whether or it it has already been done to mine.

Mckev wrote:I never said I wanted to remove it.

Whoops... my bad. Look for the vacuum operated valve (like one shown in pic) under fire wall end of intake manifold, and see if a 'spade' plate has been slide inbetween flanges to block. A metal pipe runs from this valve around the back of the head, to the exhaust manifold. It bleeds exhaust gases back into intake (intake butterfly assists this) under certain conditions, engine temp, revs, and throttle position are factors. Usually system causes intake to gunge (is that a word?) up, or no longer works correctly and affects performance.
Jeremy

kbjj wrote:

Mckev wrote:Usually system causes intake to gunge (is that a word?) up, or no longer works correctly and affects performance.
Jeremy

What now use it all the time

Can someone point it on this? What I need is a full engine diagram or someone to teach me this stuff in person ahah.

this thing is what your looking for, look behind the head down the firewall and you should find it.

How far down is it? I thought that was what I was looking for, but I haven't seen anything that resembles it... Haha it probably has been removed...

i think thats the top of it there, its quite hidden away under heaps of things.

Ah ok cheers. I had to climb up onto my nudge bar to even see it.

least yours isnt as high as mine is lol, sometimes i have to get a chair just to get onto my nudgebar lol

I'm going to check mine out tomorrow as I think mine is still there, although the vaccy hoses have been removed by the engine people ages ago. If it is still in there does it still need removing?

im thinking of taking mine out, dont know yet.

Personally I'd remove or "spade" flange, as valves can stick partially open (with all that gunge), then at least tie intake butterfly open and remove, then block vacuum line.

Total removal is fairly easy i just made some blanking plates and bolted them in place. I also removed the butterfly housing and made my own because i wasnt fond of the oil leaking out of it under boost

kiwipete wrote:I'm going to check mine out tomorrow as I think mine is still there, although the vaccy hoses have been removed by the engine people ages ago. If it is still in there does it still need removing?

Yearp, mine is still in there, another project to tackle. All the vaccy hoses have long been removed off it all the same.
Has anyone any drawings for blanking plates for it?

Check http://www.offroadexpress.co.nz/Forums/ ... 47&t=33020

When I removed mine, the egr pipe was so caked up it was completely blocked. Even jabbing at it with a screwdriver didn't clear it. I removed mine so I could use manifold end to install EGT probe.
A ball bearing wedged into the vacuum line would stop it working, and visually no-one could tell...
Probably one reason why there's no law against removing it...

Nath

i might do the same when it comes to removing mine for the egt guage.

seems an easier option than drilling and tapping into the manifold.

See also



http://www.youtube.com/watch?v=GEPJxLE5GYY


Its a long video, but shows how he goto the bolts which can be a bit tricky the first time.

Yeah looks a bit of a bugger to get to, dunno how any guys with lifts will go trying to reach it...

easy as, we sit on the radiator, or stand on the nudge/bullbar