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PM sent mate, cheers, the ferret.

Just one end, blocked is blocked!!
Cheers, the ferret.

Mate, if you could see inside your inlet manfold, you would see what the combination of carbon from your exhaust and PCV vapour does.
There is a lot of reading that can be done to help you make up...

All I can tell you mate, is that the EGR system was introduced as an environmental thing.
Just about every modern engine is fitted with one, even the petrol motors.
Time will only tell if these...

Thanks John, I hope you are feeling much better too by the way.

I think as said a moment ago, you don't need the crap buildup in any engine if it contains carbon from the exhaust, petty or diesel....

My opinion is that any engine that has EGR, it should be done away with or blocked.
Blocking the EGR on your NA TB42 shouldn't be a problem, you just need to convince the ECU.
Cheers, the ferret.

The early 4.2s had no EGR system, probably why they last so long lol
Cheers, the ferret.

That would be like sticking a band aid over a cut without cleaning it first.
It's best to clean the inlet manifold as best you can, along with intercooler etc.
The cleaner, the better.
Cheers, the...

Yep perfect fit, they are slotted so there is no need to pull it all apart.
Cheers, the ferret.
http://i608.photobucket.com/albums/tt164/ferret/42pic.jpg

It will give you a quicker spool up, while it also prevents all that carbon going back through the engine, hence, longer life.
Cheers, the ferret.

Once you have blocked the EGR, nothing can enter the inlet via the EGR.
Just leave all the vacuum hoses as original..

If you have a leak from the EGR, then you need a new gasket, altho the flow...

Only the butterfly itself, not the whole valve!!
Cheers, the ferret.

Generaly speaking, that's all you need to do to the 2.8 and the 4.2. (Block the EGR)
It is a good idea to fit a boost guage, that way you can monitor the boost and make changes if required
Cheers,...

Yep, if it's a 4.2, just block it.
It's a good idea to fit boost gauge, pyro and a catch can.
Cheers, the ferret.

Do the lot at once mate, then you can tweak the Dawse valve.
Cheers, the ferret.

You need to loosen the two bolts to the manifold and just check that it is blocked, there is a plate that looks like a blocking plate, but it's not!!
Cheers, the ferret.

Back in the old days, we would "port and pollish'' the inlet and exhaust manifolds, this was very painstaking and took hours to do.

It involved sanding and pollishing and buffing to get the...

Mate, to be honest, If I bought a brand new nissan, the egr would be blocked before I took it out of the driveway, have you ever had a look inside the inlet manifold when EGR has not been blocked??...

By Bypassing the piston rings!
Cheers, the ferret.

All good mate, glad to help.
Just heep an eye on the EGT's and max boost.
Cheers, the ferret.

Here ya go mate.
http://i608.photobucket.com/albums/tt164/ferret/egrblockzd302-1.png

Mate, What motor you got?? I may be able to help you with some pics, doesn't sound right to me.
Cheers, the ferret.

Love it, well done mate.
Cheers, the ferret.

If you have a 2.8 or 4.2 with EGR valve, yes you can block it.
Some 2.8s don't have EGR (GQ)
Cheers, the ferret.

NZ Daz, You have more work to do, It's not just a matter of blocking the EGR, there are other important mods.
Boost guage, Pyro, etc etc.
It may pay you to do a search and read some of Tony's...