Thread: EGR Removal....sludge and more sludge

Hey Mr Bear.
The sludge you speak of comes from the oily mist that comes out of your rocker cover combined with the soot from the EGR. And yes, the best way to clean the intake manifold is to remove it and soak it in kero. Thorough clean, new gasket and it will be all good.
The only way to stop the oily mist is to fit a Provent. This separates the oil from the blowbye gasses and stops it going into your intercooler.
Hope this helps.
Regards
Robbo

Hi Robbo, thanks for that, well it wont be getting any more soot as the EGR is now in a box in my attic, is it a big job to remove the manifold?
It didn't look like it was but I haven't read up on RAVE yet (I'm at work today) I like to ask before I remove it and find myself in deep poo for some unexpected reason
I quickly googled ProVent, and liked what I saw, would you recommend one, if I'm going to the trouble of cleaning the manifold it would seem a good time to fit one?
Sorry for the extra questions, cheers / Andy

Hi there have you looked at the inlet to turbo pipe pull it off
and see if you have a oily stain at approx 10oclock position
this is where the crankcase pressure vents if its really messy
it would be worthwhile fitting a new DCV the round valve that
is close to the inlet to turbo if its sticking open you will get more
oil vapour than normal this passes the turbo gets hot and coats
the inside of the intercooler and gets heated by ERG gas to causing
a black gunge.
Try a new DCV valve
Clean intercooler
So pics of turbo inlet and EGR and inlet manifold would be good.

Pete

Andy.
Removing the inlet manifold will be a little challenging. You will have to battle with the fuel cooler and the fuel pressure regulator. Then undoing the nuts will be fun.
Yes, the provent is a good thing. Highly recomended.
Regards
Robbo

Whats the issue with venting the engine to atmosphere ? Does it create too much pressure in the crankcase ? Or is it dust ingress which could be solved by a filter.

Originally Posted by lyonsy

Whats the issue with venting the engine to atmosphere ? Does it create too much pressure in the crankcase ? Or is it dust ingress which could be solved by a filter.

It is not legal.

You will have to battle with the fuel cooler and the fuel pressure regulator.
Then undoing the nuts will be fun.
Yes, the provent is a good
thing. Highly recomended.

If I were to remove my inlet manifold again, I would drain the cooling system and remove the fuel cooler , as it is relatively easy.

I didn't do it first time as I didn't want to possibly waste $50 worth of coolant, as I planned to replace all hoses later. Now I know what type of coolant is in it and have already drained once to fix leaking clamps, I would not hesitate to remove to cooler, as my new coolant was squaky clean and could be recycled.

This gives much much better access to the inlet manifold and of course removing the inlet manifold the fuel pressure regulator and the fuel hose to the front on an EU3.
Regards Philip A

BigJon
Quote:
Originally Posted by lyonsy View Post
Whats the issue with venting the engine to atmosphere ? Does it create too much pressure in the crankcase ? Or is it dust ingress which could be solved by a filter.
It is not legal.

nether is removing the EGR