Catch tank sludge

Just drained the catch tank on my 02 zd30.... Oil looked like it was from an old diff....
However, at recent engine oil change, all looked good. Doesn't appear to be using water, maybe an occasional top up of the lower header tank every couple of thou

I am concerned, the question is should I be and what can I do to assist?

Pretty sure egr either needs blanking or cleaning out, I noticed a bit of oil around the turbo air inlet as part of my routine checks. Noticed a bit around the back of the intercooler on top of the motor.

Just changed coolant as I broke the top of the radiator with a 20ltr drum of oil...

426kkm should I just got monitor or what?

an oily IC may mean its leaking, if you change oil the mighty ZD30 doesn't like to be over filled
even by a little.
You can test the IC yourself with a bike pump and a big bucket, just dry thoroughly[hair dryer]
before re-installing

I just cleaned mine too and same sludge all else is good

If there is oil on the IC then its leaking, for sure. The oil from the can is normal, the oil around the intake pipe at the turbo is o.k, amount depending, should be dry though. So id say the can isn't fitering properly. And the Egr needs to need blocked. Period.

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The best part of your post Milsomr is the 426k km on the clock. Original motor?
Sounds like you need a new tig welded inter cooler and clean out intake manifold. The car will thank you. Block off erg if you get chance as well.

Another consideration is the oil used . Some oils seem to be better / different when it comes to oil vapour residue than others . Now I use Caltex delo 400 and it is poor in my opinion in this regard but guys on here use penrite and reading between the lines it doesn't appear to be as bad . Be good to hear from others on the topic ?

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Originally Posted by boots

Another consideration is the oil used . Some oils seem to be better / different when it comes to oil vapour residue than others . Now I use Caltex delo 400 and it is poor in my opinion in this regard but guys on here use penrite and reading between the lines it doesn't appear to be as bad . Be good to hear from others on the topic ?

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Yep. I used delo400 for a while and the can always had more oil in than using Castrol.

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Could have been xs oil? I'm using royal 5/30 c4 fully synth. Although I might go to 10/40 once the weather warms up a bit.
Some white smoke on start up but clears once the first bit of heat gets into it.
Been looking at the egr blanking, should I remove the system and clean it all out or just cap it and forget?
And which side? The posts I've looked at suggest that the temp will go up, I'm a bit scared of playing with it. The last owner had the catch tank fitted because of low power. Been well maintained, done some long runs and towed a boat, been a work truck. I'll probably do 25k km a year in it as its my daily driver. Please advise, can't tell you about boost pressures and egt's I got no gauges (yet....)

Hey mudski I was looking at what should have been the right egr plate on your eBay , can you confirm? And do you ship to the Eastern isles...

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Originally Posted by milsomr

Hey mudski I was looking at what should have been the right egr plate on your eBay , can you confirm? And do you ship to the Eastern isles...

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Yeah mate its on the right hand side. I can post anywhere really but the cost of post would be more than the plate. Pull the gasket out, and make one with a piece of metal. It will take you an hour or two, rather than waiting a couple of weeks.

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