How to fix oil dripping from the crankcase breather in 1.6HDi/TDCi (Peugeot/Citroen/Ford/Volvo/Mini)
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- เผยแพร่เมื่อ 5 ก.ย. 2024
- Do you get oil dripping from the crankcase breather? Replace the air intake o-ring with a fatter o-ring. If you do that the CCV (CrankCase Ventilation) valve will work correctly and you will also have no oil seeping from the crankcase breather.
Here are the dimensions:
Original o-ring width 3.1mm, outside diameter (OD): 31mm, inside diameter (ID): ~23.8mm
New better o-ring: width 4mm, OD: 26.5mm, ID: 18.5mm.
An o-ring with width 4mm, OD: 27mm and 19mm ID will also work.
Here is an amazon link to the o-ring (amazon UK): amzn.to/31KH3br or ebay: ebay.us/nnHLwX
The spare rocker cover that I used (0248L1) (amazon UK): amzn.to/2VL4oWd or ebay: ebay.us/drJmYU
If you find this video useful, buy me a coffee: www.paypal.com...
All my car-related purchases: www.amazon.co....
#HDi #CarMaintenance #OilLeak
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wow you're a savor, such a simple fix for a problem that's causing me headache and most mechanics will tell you to replace the whole intake
You are welcome 🙂
Ordered thankyou hope this will solve my leak it was so bad it has detreated my radiator hose from oil dripping onto it since I bought my van.
Update!!! seal came just fitted it nice and tight fit no more oil seeping out cheers for the video top man!!
great video man. A real HDI guru :)
Hi Marco, thank you for the praise, but I consider myself still an amateur..
Thanks for the video and especially the dimensions! Hopefully this'll fix my POS 1.6hdi that keeps leaving oil stains everywhere I park
Hi Adam, hopefully it fixes the leak, but if it leaves that much oil it may be coming from somewhere else. Good luck.
Try using something for a removal tool that has less potential to cause damage to the main components, eg. the ring groove/land. Gouges risk ruining the new o-ring and ending with more mess. Picks, plastic upholstery tools, toothpicks, small teaspoon, broad-side of paperclip, etc.
Also, a little oil on the new o-ring can make refitting less cumbersome.
Thank you for the great comment. Yes, I should have used plastic tools rather than a big screwdriver. Inside of the crankcase breather is already coated quite heavily with oil, but yes a little oil on the rubber does not hurt. Thanks again.
la he puesto y va muy bien, gracias por la informacion, un saludo desde España
This is exactly what has happened to mine! So you don't have to replace the entire parts?
No, you do not need to replace the entire part, only the rubber seal with a slightly larger seal.
Thanks. Have a 1.4 and that joint is loose! 👍🏻
Then the solution with a thicker o-ring will work. This shoud not be loose as there will be oil going through and a bit of loss of air.
Hi, Thanks for sharing this video. I have problems with leaks in my Peugeot Partner with 1.6 HDi engine. Today I installed new o-ring with the dimensions you provided. It was hard for me to put it on and then to mount the breather but somehow I managed to do it :) I bought an o-ring made of FPM (Viton) and it is supposed to be resistant to high temperatures, oils, greases and fuels. I hope this ends my leakage problem. Greetings
Hi BBB, yes, it is supposed to be rather tight fit. That is how oil gets stopped and really good that you bought the oil/temperature resistant ones. They will last longer.
@@moremolecules So far so good. No leaks after 4 months.
@@BBBTVPL Nice one. It is inevitable that it will start eventually to leak, but simply replace with a new one.
Where did u get the o ring from please
So5d hino dutro oil is coming from breather going to the intake manifold and engine is overheating
I like the video, but I don't get how you came into conclusion that an o-ring of 4mm thick could replace an o-ring of 3.1mm. I have a small leak, and even an o-ring of 3.55mm is too thick to fit.
The o ring has a smaller diameter than the original, so although it is 4mm in its normal state, when the diameter is stretched to the size of the original o ring the thickness of the new o ring is lessened.
The new o ring will have a shorter life span from being under constant stretched tension but considering how easy it is to change I think it is a reasonable fix over replacing the entire part
Very good tip.
In 1.6tdci it's able to install oil separator on this pcv pipe. With it your engine will work much longer!
Thanks pohgejib, I am currently experimenting with some oil catch cans to see if I can get it to be more efficient. I will post the results.
@@moremolecules me too. I'm trying to install this: 481H1014030. For 1.6 tdci it's more simple because there is more space between pcv valve and intake pipe... It needs just 2 connectors and 30cm rubber pipe...
@@pohgejib Yes, there is more space in the 1.6 TDCi. Good luck with the install.
Awesome thanks for the upload!
Thank you!
Cheers mate just change mine
Problem solved thanks you are the king!!
Is this originaly your idea or... and why Peugeot/Ford did not put fatter O ring in the first place :/ ?
Haha, thank you. Yes, it was my idea. The thing is that eventually if you take the crankcase breather a lot of times in and out, the o-ring gets squashed with time. Also, with vibrations the original o-rings get squashed and needs to be replaced with a fatter one. Eventually the new o-ring will also get squashed and it will start leaking, but it will take a few years.
@@moremolecules Great.
So the fatter one will some day also get squashed but it should last a bit longer...maybe.
And yes you have to remove crankcase breather every time you change the oil...
Keep up the with smart videos 👍
Mine leaks so I'll look into changing the seal to a fatter one.
Thanks again.
Mine has not leaked a single drop since I put the fatter o-ring.
@@moremolecules I'm assuming the air can still leak out? I'm guessing that's how it's supposed to work. Only let the air out but keep oil in.
Going to buy a o ring kit
@@mikey2811 No, it is not how it works. It has to be a pretty much tight seal, no air/oil/vapour if possible. Basically, the gasses and/or oil vapour from the crankcase get redirected to the air intake (pre-turbo) to get burned. If there is a air leak and this is not tight, then unmetered air is allowed to enter from there when the turbo starts piking up. That is not a good thing. There is a membrane that closes if the turbo picks up and it would not work with an air leak. I think I had one video that explains a bit more.
@@moremolecules bought a new seal kit and I used a 18mm internal diameter and 26mm external diameter, 4mm thick seal and it was a tight fit but it went in. I don't think anything will come out now. I bought another used breather due to mine having a few cracks on the turbo end where the red seal is.
@@mikey2811 Yes it is a tight fit, but almost nothing will come out of this.
Thank You my good man!
You are welcome
Hi, Thanks for sharing. I have 3008 2019 Peugeot. Now i get this DTC crankcase fumes heater control- open circuit. I checked the valve cover and the round thing zigzag lockers on the valve cover is leaking oil into the intake hoses. Will replacing it help fix the DTC?
0:30 : can you tell me the name of the part in your left hand. Mine has a crack in it and need a whole new part. Greay videos as always 👍🏽👍🏽👍🏽
Do you mean the rocker cover? The part number is: 0248L1. It is also in the description of the video.
Gracias saludos desde chile
Do you have any videos on how to change the oil filter housing and changing the seals
Not the whole housing, no. Why do you need changing the housing?
If i pull my oil dipstick 1.6 eHdi cactus euro 5 year 2014 OIL will hit my face its a lot of crankcase pressure .....its PCV bad in this case and how i stop from not make any damage to my baby
I dont burn oil i have no leak oil or black smoke or oil in tubine only a huge blowby in oil cap and oil dipstick...Pls HELP
I'm not very familiar with the 2014, but it could be anything from the PCV valve to other things. It could be bad PCV and you could simply open it up and see if the spring has collapsed for example.
Hi,
I see your video...have One question, oring 4x26x18mm will work? I buy on a local shop, and they didnt have the sizes you mentioned
Yes, it should work, although maybe a bit more difficult to fit, but it should be alright.
@@moremolecules thanks, i Will try then i let you know.
Hi! Thanks for this video. My question is, should there come any oil from the PCV valve? because my turbine is leaking on HDI 1,6 and I'm pretty sure it's due to the oil dripping from PCV to the intake pipe and getting down to the turbine. How do you think?
Hi Kosta, in general, some oil from the crankcase breather coming out is normal. Excessive amount is not. It is really hard to say how much is excessive. Certainly, oil from the PCV valve will end up on the turbine. That is why I put an oil catch can. The PCV valve is supposed to scavenge the oil and drip back in the crankcase, but it is not the best of designs. It is mainly water vapour, but some oil comes out as well.
@@moremolecules Thank you for your priceless videos, they are the best resource out there to maintain/fix your PSA stuff!
I have found a mini pool of oil in the hose at the intake of the turbo, also the walls of the hose do have a good oil film on them. Thanks to your description i now also put the new oring in because all around the top of the cylinder head there is a slight oil film. I hope this is connected to the CCV.
Stupid thing is just that i can't find out if the oil is from a deteriorating turbo or from the CCV.
@@TonyStark-ik9em The oil film is likely to be from the CCV, replace the o-ring, wipe everything clean and see if it comes back. Unlikely to be from the turbo and on top of the cylinder head, most likely the CCV.
@@moremolecules Fingers crossed, thanks alot for your reply!
Very informative, but I have a question , I've just had mine fixed , but still droplets of oil underneath, could it be a residual oil build up from when it was leaking ?
Could be, but it should not leak anymore. Mine has not. Did you wipe all the oil left so you can see if it is still dripping?
Does rubber membrane inside CCV valve need to be glued to plastic.I checked CCV valve and membrane was originally but i don't know if it's matter?
No, it should not be glued at all. Should be freely moveable. Maybe it was stuck from the heat and so on, but it should be free.
Hi there, it is nice fix for the O ring, but you neglect the main issue, which is oil getting through your PCV valve! I have the same on my 2010 Focus II 1.6 tdci. Isn't your exhaust smoking on cold start? Check your PCV! Just ordered PCV diaphragm membrane for 20 USD from eBay... But hey! Try not to brake those clips on the cap, as cap is not available separately...
Hi Gusztav, in this particular video I am ignoring the real issue of oil passing through the PCV valve, although it is not a PCV (positive crankcase valve) in the true sense as in petrol engines. It is basically a crankcase valve (CCV) or merely an opening (with some baffles) that excess pressure can be evacuated. I do indeed have blue-ish smoke on cold startup and I suspect it is the PCV, but not entirely sure. I tried to remedy with an oil catch can, but did not quite work out. I suspect it is mainly due to inefficient oil catch can, but there is some trade-off of efficiency and increase in crankcase pressure. I am investigating the efficiency of this as we speak. I also replaced the PCV membrane, but nothing changed really, the old membrane was OK. It was not smoking on cold startup before, but rather started one day, so I cannot quite attribute that to the PCV and I already looked at the PCV.
Going to try this soon hopefully it just goes on but it looks a little tight like the o ring is under pressure tho thanks
Hi sshaunss, yes, it should be tight fit. Try to oil it slightly to ease it in. With time it will be less tight fit. If it is not a tight fit, oil will pass through. If it is too tight fit, you can try fitting it on a warm/hot engine.
more molecules thanks just bought it clutch needs doing first but noticed oil near this connection so this should help :) you would think car makers would of used a fatter ring in the first place
@@sshaunss I think it was fatter at the beginning, but with time from the heat cycle it shrinks. A new one should be good for another few years.
more molecules did it today great idea this, that’s a tight fit now nothings getting past that did the rocker gasket to whilst I was at it thanks
@@sshaunss Nice one! Yes, it is a tight fit, but that is the point, to seal and stop oil coming through. Not too sure how long it will last though, hopefully a few years.
I have oil coming out of the crankcase breather and it is smoky when idling. Is that normal? I was spraying EGR cleaner but the light smoke and fumes coming from the breather was problematic and I was performing that cleaning process outside. I recently had a new Turbo fitted and the oil from the breather has become more noticeable. I want to re service my van because I don't have much faith in my mechanic. The Oil is very thin, too thin to be considered a premium product. I haven't checked the air filter yet. I am dreading it. It was last serviced 10 months ago. Full service, new timing belt/water pump etc.
Yes, replace it with a thicker o-ring and see how it goes. It should not be smoky when idling when the engine is in operating temperature. Is it blue/white/black smoke? My air filter after 3 years of servicing by Peugeot dealership was black as never been replaced before.
@@moremolecules the Smoke is misty like light fog. The engine was up to temperature. I am not happy with my mechanic. He had one easy job, to fit a new EGR valve but he took the old solenoid off and replaced it with a new one onto the old valve which has seized up. He probably thinks I am an idiot who knows nothing about mechanics. I just hope he hasn't damaged the new solenoid.
@@moremolecules A quick clip th-cam.com/video/k2DsRLfWxko/w-d-xo.html
@@Surfingaliens65 Yes, that is normal. Oil in the engine is hot and naturally evaporates a little bit. It does not seem excessive.
@@Surfingaliens65 Hahaha, most mechanics that I go to also think I am an idiot :-) that does not understand anything. Which solenoid are you talking about, the EGR solenoid?
Great video
Hi.Tnx for great video.Is it possible if old original o ring isnt sealed good, beside oil leak also some air from air filter is leaking too on this place?
Hi Slobodan, it is possible in general. Nevertheless, it will be really small amount of air. Generally the air is being sucked from the turbo through the air filter and a very small amount of air from the crankcase breather. The PCV valve takes care of not too much air to be sucked from the crankcase. So, even is the seal does not seal well, there will be very small amount of air goind through there. The oil that goes around the seal will in general seal the passage of air.
Hey Thank you for the video, I have a C4 picasso 2007 HDI 1.6 and is leaking in the crankcase breather, which product do you suggest to clean up around the breather where is the oil?
I will change the O ring and I´ll let you know how it goes.
Hi Frane, any carburettor cleaner/spray would work. I would not spray too much in there. I normally just wipe it with a towel when the engine has been just shut down. The spilled oil is liquid and you can wipe it clean.
Just thinking, is it better to let the oil drip outside, than keep it inside? What is better, have more dirt outside, or more oil in the turbo? I am also wondering, what to you mean with "CCV valve will work correctly"? I don't get how fixing the o-ring leak affects CCV valve working.
It is not so much the problem of dripping, although I hate oil being splattered around the engine. If the seal does not seal that well you would have an air leak. When the turbo spools and draws air, the valve closes to some extend from the drawn air or vacuum, so not to allow oil to be sucked from the crankcase. With an air leak, this will not work as intended. That is what I meant when I said the CCV to work correctly. Also, with the air leak the turbo will not pull the gassess from the crankcase efficiently and ending up with slightly higher crankcase pressure.
thanks for the upload! I recently bought a 2008 peugeot partner (1.6 hdi 9hx), very happy with it. checked this problem and I also got oil leak there. Tomorrow I'm going to buy the fatter o-ring.
Question: does these have a plastic cover over the timing belt? or just mine misses that. thanks
Hi endurodani, my engine is the same, 9hxc. Yes, they do have the plastic cover for the timing belt. It is possible that last time someone replaced the belt, they forgot to put the plastic cover. The fatter o-ring is a tight fit, but it should go with a slight persuasion.
Thanks for you quick response! And keep up the good work with your videos, they are very helpful!
@@endurodani Thanks for the encouragement. I have scheduled some good ones, but it may take a while for the good ones.
I have a Citroen berlingo 1.6hdi. I have owned it from new, there is no cover on the timing belt on mine.
Hello. O ring remplacement 27x20x3.5mm/
The one I used was 27x19x4mm, it is a bit thicker than the original one, so makes a better seal.
So any reviews in long term use ? Did it fix definitely the problem ?
Hi ProSlam, very good question. It certainly fixed the problem for ~3-4 months, no oil whatsoever coming from the crankcase breather. Problem is that I just used whatever o-ring I already had, so that got slightly degraded from the heat and oil. I replaced it again, so all is good for the moment. Nevertheless, if one buys oil-resistant o-ring, it should last for very long time.
hey my turbo has a puddle of oil around intake and my engine refill hole is smoking is my crankhouse breather bad?
Could be. I would open the PCV valve and inspect the condition of the spring and rubber membrane. A little bit of oil is normal in the intake and a little bit of smoke from the refil also normal. Difficult to tell how much excessive is yours from a distance.
i have a puddle of oil in the intake. so alot of oil there, will check pcv valve
@@williamvesterberg1107 If you have not cleaned it for some time it will be a puddle, like a spoonful or two is normal.
@@moremolecules i clean it and i have a puddle the same size after 1 hour of driving
@@williamvesterberg1107 Yeah, looks like a little bit of excessive crankcase pressure that is pushing a little bit of oil or the spring in the PCV is broken/missing or the membrane is torn. Easier to first check the PCV valve.
Could you help me please. After having the air pipe seal fitted I have this problem. So will get the new oil ring fitted as you advised. I’ve just undone the jubilee clip to the air pipe and there is oil in there too. Is this because of the rubber oil seal ? As there wasn’t oil in the old one ?
Many thanks
Hi Deborah, there are two jubilee clips on both sides of the air pipe. One is the turbo side and the other the MAF/filter side. If there is oil around the turbo side, this is normal. If there is oil on the MAF sensor is not quite normal. Oil from the crankcase breather (white pipe) will come out and hit the turbo and be oily there. If there is a lot of oil, it could be that the membrane of the crankcase ventilation valve is ruptured and the turbo is drawing more oil from the crankcase.
I have a problem with my citroen c4 picasso..the car emits a lot of black smoke..does the crankcase problem affect?
Too much fuel and little air leads to black smoke. I would say either overfuelling by injectors (faulty injectors) or boost leak somewhere. I would have an OBDII scanner and have live data to see how much boost does the car produce. Should be ~1bar above atmospheric presure, or say ~1.5-2bars on the torque app. Maybe check if the air filter is not completely blocked.
One more thing, it could well be the MAF sensor next to the air filter box. Remove the electric plug for the MAF sensor and drive like that, see if it changes the black smoke. If it does, replace the MAF sensor.
I'm a bit confused so is 19 or 27 o ring ?
And do you know what is original o ring for intercooler air intake which connects to turbo
ID is 19mm and OD is 26.5-27mm, ID is internal diameter and OD is outside/outter diameter.
@@moremolecules thanks after my comments I realised is inner and outer measurements, any idea for turbo flange o ring replacement size
@@relaxul1467 I do not know the size on top of my head, but the Peugeot/Citroen part number is 144081, so you can find it on ebay for example
Hello, I have problems with my peugeot 1.6hdi 90. It has hiccups and stalls and already had suddenly and complete loss of power. could it be because of this?
Very unlikely. Even if the seal is not complete it will not lead to stalling. Loss of power could be different things. Best is to plug it to a diagnostic equipment and see what it reports. Could be EGR valve or MAF sensor. You could try removing the MAF sensor (next to air filter) and drive with this. This will switch to default mapping.
@@moremolecules Thank you for your answer. I was wondering if this odb2 equipment might work: www.ebay.co.uk/p/2213173620?iid=253587409162
4m51engine leak through the breather
I’ve replaced the o ring with one that is 19x4x27mm like you recommend and it was a real hard push to get the breather pipe back in? Is this ok or should I get a smaller one ?
Hi Sam, it is supposed to be rather tight. It will make a tight seal and not let oil pass
I have the same problem were can i buy a set of these o rings from with size you said please or will it come in a set
Hi Kristian, all the dimensions and description and where to buy it from is in the description of the video. I can only link to UK sites, as I am based there.
Hi there thanks gor your fast reply i live in Nottingham england i have typed the messure ment on google nothing is coming up is there a certain way of putting it or a site you could leed me to with the link so i can order thank you
@@kristiangarcia6963 You can click on the amazon link (in the video description) and it will take you to the exact one I am using. Otherwise you can search for nitrile rubber o-ring and then select the size/dimension.
I have a 1.6 sw that I have just clean the engine there oil all over the top of the rocker the top of the engine and all over the alternator also its dropped more or loss all the old in one go. Is there something I should be paying attention to before i starting to strip things down. Thanks for help in advance 🙂
Hi Zool, you may want to investigate where all this oil is coming from. It could come from several places and it is best to understand where it is coming from. Could be the rocker cover gasket, or injector seal or something else. I would suggest to clean everything and see where it is coming from, as your course of action will depend on what the problem is. Hope this helps, although a bit vague.
@@moremolecules cam chain needs changing its got worn and split the rocker cover over the top of the cam theres were all the oils coming out 👍
@@zool8139 Wow, that sounds pretty bad, never heard of the chain getting so slack that cuts through the rocker cover before, but I suspect there is always a first time.
@@moremolecules there is another videos on TH-cam were you can see damage that the cam chain can do just were it wears through. But yeah I'm shocked it's not skip a tooth
@@moremolecules 36 seconds in > th-cam.com/video/KqKt4nzF7Nc/w-d-xo.html
Hi were did you get the fatter o ring..cheers in advance..mick.
Hi MrPaddywack2001 , I got a box of rubber o rings from Halfords. This particular o-ring was part of that. I think HBB131 ("metric o-rings") was the Halfords' part number, but might be wrong, although amazon also sell a lot of these. Hope this helps. BTW, since I put a fatter one it has not leaked a single drop.
An o-ring with width 4mm, OD: 27mm and 19mm ID will not work it's too big, tried it.
Hmm, I ordered them and that is what I used. Seem to work OK on mine, a bit tight but that is the point. What year is yours and is it 1.6HDi?
@@moremolecules It's an 1.6 HDI in a 2006 Peugeot 207, it doesn't get in even if you force it.
I think it should be ok with a OD: 26.5mm, ID: 18.5mm but with 27mm and 19mm it's really to big
this thick o ring will break because of the heat its smaller en it will strech and brake ...better put thin layer of sealand in the groove and put original o ring back...works fine! just 0.5mm sealand
Hmm, by your logic any o-ring will break down and on top of that the sealant will not break. My o-ring that I put has lasted ~5 years by now and has not broken down in bits and pieces. If it breaks down, one just replaces it with a new one.
hi i cant buy from amazon uk. where else can i buy it?
The dimensions are in the description of the video. You can buy them then from anywhere, say ebay. I cannot unfortunately have links to everywhere. Just see if you can get the same size o-rings from ebay for example. There is nothing much special about the o-rings. It's good to be nitrile rubber, it will last longer and can sustain the temperature.
where can i buy the whole thing?
Hi Nyheter, the details are in the description of the video. Also, the PSA manufacturer number is also listed there.
Hi. Thanks for the suggestion of putting a thicker o-ring on the breather tube, as it solved the breather leak. Unfortunately I have a persistent oil leak around injector #2 (counting from gearbox) that I cannot solve. I already replaced the rocker cover gasket, the rocker cover itself and the four injector sleeve seals, and the respective injector copper seal washers. The leak still persists. I am thinking that maybe the oil is leaking through the injector stud threads. Do you have any suggestions for how can I seal that without tearing down the camshaft carrier?
Hi msrego, what torque did you use and did you re-use the bolts. These are difficult bolts to do and I am not too sure if they can be re-used. I do not quite remember on top of my head, but they seem to be 4Nm + 65 degree tightening. They might have stretched a bit and do not push the injector down. Even more if you have used a seat cutting tool for the injector seat.
@@moremolecules I torqued the injector nuts to 4Nm and 65deg as per PSA reccomendation, but used the old studs. I know they are torque to yield so they should not be reused, but in my case the injectors themselves are sealing perfectly because the oil that pools around the injectors does not bubble with the engine running, and is definitely oil that is leaking, not diesel.
@@msrego Did you clean the injector seat with a reamer tool? I assume you have used a new copper washer. Sometimes the seat is not entirely flat, due to higher temperatures, etc. and it does not seal quite well. You could try with a reamer to clean it and remove an extremely small amount of the seat. In general if that is done multiple times, people use 2 washers to seal it afterwards.
@@moremolecules Yes, I cleaned the injector seats with a reamer tool, and always used new copper washers. As I told you before, the leak I have is an oil leak, not a diesel leak (or burnt diesel residue, when the injector copper washer seal fail), so I am certain that the problem is not the injector seal.
As I have replaced every seal on the camshaft carrier assembly, including the rocker cover twice, I think the oil is seeping through the threads of the injector studs for the number 2 injector, making me believe that the camshaft carrier RTV silicone seal has failed, which is not unreasonable to think as this engine has 190k mi.
@@msrego Nice job! Through the injector studs is a bit weird. I do not want to offer some stupid advice, you seem to be more knowledgeable than me as you have done all this work. I do not think increasing the thread size would help nor a thread locker. Is it a heavy breather by any chance? The milleage is not too much, but I suspect there will be some increased crankcase pressure.
What is the width of the o ring please
Hi Rob, all the dimensions are in the description of the video, easier to get it from there.
Is it 19mmx27mmx4mm
@@robbiesillett3220 Yes that's the one, but 18x26x4 will also work
OK thanks
Very good tip.