Hamish Grundy Posted September 12, 2010 Share Posted September 12, 2010 Hi all, About a month ago i bought an N reg discovery, drove it home and the clutch went, gearbox was noisy so i replaced the clutch and the gearbox, all that is fine now, but it seems to use alot of fuel, i put 50quids worth in the otherday and ive only done just over 200 miles on that. it seems to smoke a fair bit, especialy when you first pull off, and if i boot it it smokes alot, it pulls well through all gears. i replaced the diaphram on the pump as the shaft was worn where the ring sits, theres no obvious signs of where the diaphram should sit in the 'standard' position. any idea how i tell this? also when i had the intercooler out it had alot of oil in, and in the inlet manifold, i cleaned all of that out and put it back together. every now and then it throws a bit of blue smoke out the back which i presume is oil, the oil is clearly coming from the engine breather, if i take the inlet pipe off at the turbo oil is present. my question is can i remove the breather pipe from the inlet pipe and blank if off on the inlet hose, and leave the breather where it is? and what is causing it? its a 300tdi es manual with 193k on the clock. many thanks, hamish Quote Link to comment Share on other sites More sharing options...
Hamish Grundy Posted September 16, 2010 Author Share Posted September 16, 2010 any one got any idea?? thanks hamish Quote Link to comment Share on other sites More sharing options...
disco_al Posted September 16, 2010 Share Posted September 16, 2010 £50 is a lot for 200 miles. mine uses about £35 to do the same distance. The intercooler and pipes with oil in can be normal, as long as it's a fine coating, anything thicker than that could mean trouble. it's possible your EGR valve is stuck, or even the cyclone breather on the side of the head is knackered, causing the smoking. what conditions does the blue smoke appear under? Quote Link to comment Share on other sites More sharing options...
Hamish Grundy Posted September 16, 2010 Author Share Posted September 16, 2010 the blue smoke is usualy just first thing in the morning when i pull out of my drive. can the cyclone filter be cleaned or is replacing it the only way? i was considering putting a egr blanking plate on it so that would sort that. Quote Link to comment Share on other sites More sharing options...
Hamish Grundy Posted September 16, 2010 Author Share Posted September 16, 2010 p.s....there was quite alot of oil in the intake manifold but i guess if it hasnt been cleaned in 193k then there going to be a fair bit. if cleaned all of that so i may have another look later and see if there is more. can i just remove the breather from the intake hose? Quote Link to comment Share on other sites More sharing options...
disco_al Posted September 16, 2010 Share Posted September 16, 2010 sounds like it could possibly be valve stem seals. as it's sat over night oil is weeping past them, and into the bores, where it's burnt the next morning. does it do it if you leave it idling for a few minutes, then pull away? if so it could be the turbo seals on their way out. Quote Link to comment Share on other sites More sharing options...
Hamish Grundy Posted September 16, 2010 Author Share Posted September 16, 2010 yes i think it did earlier when i was sat at the lights, its hard to tell realy, bit of a mix of black and blue. ive taken the breather off air intake and blanked it off where it goes on to the turbo pipe. also when i rev it flat out a bit of smoke comes out of the egr valve?? is that right, my dads doesnt do it. Quote Link to comment Share on other sites More sharing options...
Range Rover Blues Posted September 17, 2010 Share Posted September 17, 2010 I blanked off the engine ol breather (radiator cap screw) and fitted a catch tank in line then fed the breather into the bottom of the airbox, where I dsometimes find oil condensate but not much. If the piston rings have worn and you get blow-by then oil vapour will get blown along into the inlet, covering the turbo vanes with oil sludge and the inside of all thepipes and interooler plus the plenum and valves if you are unlucky. I cleaned the turbo with WD40 and a toothrbush, fitted silicone hoses and a new bigger intercooler. I've got a new cyclone ofr the engine oil breather but I need to put the car back together before I'll know if it was worth the £15 inc P&P. Quote Link to comment Share on other sites More sharing options...
moose Posted September 17, 2010 Share Posted September 17, 2010 from what Hamish is describing i would say its the turbo seals... as it sound like I have the same(ish) symptoms, mpg seems ok on mine and my erg is blanked off. After redoing the head gasket (after some enthusiastic towing) the other weekend i found the normal amount of oil after the breather input... but after the turbo there was enough oil to drip out of the inlet pip to the intercooler.. it smokes nice and blue first thing in the morning because every thing is cold and also some times on overrun.. as you can get rebuild kits for these turbos (round 60 quid search Google for part number of the kit "Garrett 709143-0001") i was going to give it a good with a spare turbo. hope this helps paul Quote Link to comment Share on other sites More sharing options...
disco_al Posted September 17, 2010 Share Posted September 17, 2010 the other option is to send it off to A R Turbos for a recon, IIRC they quoted me £150 ish for a rebuild of a turbo with dodgy seals Quote Link to comment Share on other sites More sharing options...
Range Rover Blues Posted September 17, 2010 Share Posted September 17, 2010 Worth doing, if the seals let go it could cost you an engine, if you can stop the truck when it happens. I heard of a guy driving an earth mover that suffered turbo failure and the engine "ran away". Rather than run away himelf as was common practice in the comany he tried to smother the engine with his donkey jacket. It sucked his jacket inside the airbox then blew up Quote Link to comment Share on other sites More sharing options...
cackshifter Posted September 17, 2010 Share Posted September 17, 2010 Re the blue smoke in the morning I had a 300tdi D110 with the same problem - lot of blue smoke for first few hundred yards. It turned out to be 2 of the valve stem oil seals had slid from the top of the guides up to the top of the valve stems. It's probably possible to push them back down through the valve spring, but I discovered it when renewing the head gasket, and it's very easy to sort out then. Worth a look under the rocker cover - might need a strong light. Nigel Quote Link to comment Share on other sites More sharing options...
Hamish Grundy Posted September 23, 2010 Author Share Posted September 23, 2010 update....ive blanked the egr and replaced the top hose, it has stopped smoking and fuel consumption seems alot better so fingers crossed its sorted, but seeing as i dont use it very often il have to wait and see. thanks for all your help. Quote Link to comment Share on other sites More sharing options...
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