Crankcase breather assembly question

MGT · 2024-10-15T22:39:34+0100

I'm hoping this'll be a simple question for those in the know: should the right hand/valve side of the crankcase breather assembly be bone dry or would you expect some oil film at least?

I'm now working on my niece's freelander 1 (td4) and going through the usual stages of isolating the fault. I think it is injector related but I decided to begin with the crankcase breather. When I looked I noticed the valve was a little stuck, and then that the chamber was dry as a bone. If it's normal I can move on to the next thing.

Arctic2 · 2024-10-15T23:24:42+0100

MGT said:
I'm hoping this'll be a simple question for those in the know: should the right hand/valve side of the crankcase breather assembly be bone dry or would you expect some oil film at least?

I'm now working on my niece's freelander 1 (td4) and going through the usual stages of isolating the fault. I think it is injector related but I decided to begin with the crankcase breather. When I looked I noticed the valve was a little stuck, and then that the chamber was dry as a bone. If it's normal I can move on to the next thing.

It should have a little oil film, do you know if the PCV filter is the original one with the filter or the BMW one no filter

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So what symptom are you chasing down on the TD4

MGT · 2024-10-16T01:12:33+0100

It's the original one with the sponge filter. The filter is properly soaked with oil and not hardened (I changed one on my freelander that was like a lump of coke) but the other chamber is bone dry.

As for the symptoms, rough idle, plenty of smoke (black and greyish) and some surging. I've already unplugged the MAF and it's made no difference. I'll do a leak back test next. There's quite a bit of surface gunk on the booster hoses but all the issues are there at idle so I don't think it's that. Not sure if a stuck open egr valve would cause the symptoms, but i can easily check it.

I suspect she's been driving it pretty cautiously on lot of short trips, and putting supermarket diesel in it with no additives. So that's probably crapped up one or more injector. I did tell her to do a periodic Italian tune but she won't have done it.

Arctic2 · 2024-10-16T02:46:07+0100

MGT said:
It's the original one with the sponge filter. The filter is properly soaked with oil and not hardened (I changed one on my freelander that was like a lump of coke) but the other chamber is bone dry.

As for the symptoms, rough idle, plenty of smoke (black and greyish) and some surging. I've already unplugged the MAF and it's made no difference. I'll do a leak back test next. There's quite a bit of surface gunk on the booster hoses but all the issues are there at idle so I don't think it's that. Not sure if a stuck open egr valve would cause the symptoms, but i can easily check it.

I suspect she's been driving it pretty cautiously on lot of short trips, and putting supermarket diesel in it with no additives. So that's probably crapped up one or more injector. I did tell her to do a periodic Italian tune but she won't have done it.

Does it have a decent fuel filter preferable Pierburg, and good filter, black smoke usually indicates boost hose leak somewhere, is there a synergy fitted to the car?

Try running some of this through to clear the injectors but i doubt it's an injector

4 x Comma DIM400M Diesel Magic Diesel Injector Cleaner Boost Performance 400ml 5055415917387 | eBay

4 X Comma Diesel Magic 400ml Diesel Injector Cleaner Boost Performance DIM400M. Contains cetane improver to boost performance. DIESEL MAGIC works while you drive. Concentrated diesel additive rapidly removes harmful deposits.

www.ebay.co.uk

Crankcase breather assembly question

MGT

Active Member

Arctic2

Well-Known Member

MGT

Active Member

Arctic2

Well-Known Member

4 x Comma DIM400M Diesel Magic Diesel Injector Cleaner Boost Performance 400ml 5055415917387 | eBay

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