Coupe oil leak but where is it coming from?

Steve84N said:
I've managed to buy just the inner bit from BMW, is that the part that leaks or do I need the outer as well?

The outer from what I can see is just a housing/locator for the motor... So the seal should just pop out of it and new should go in. I couldn't get the whole thing either just the seal/inner part.
 
Update: So the last few days driving normally has been fine with the new seal, this morning with some quiet roads I had a chance to open her up and now I have oil in the same place, leaking from the under side of the new seal. Going to have a closer look at the weekend.

It looks like its leaking from the bottom of the seal to the rocker cover. :headbang:
 
Joycey said:
Update: So the last few days driving normally has been fine with the new seal, this morning with some quiet roads I had a chance to open her up and now I have oil in the same place, leaking from the under side of the new seal. Going to have a closer look at the weekend.

It looks like its leaking from the bottom of the seal to the rocker cover. :headbang:

that is dissapointing, it can't be seal then as it's brand new.. you did say that it needs to sit right, I wonder if there's a way to align it properly :|
 
Buckz said:
Joycey said:
Update: So the last few days driving normally has been fine with the new seal, this morning with some quiet roads I had a chance to open her up and now I have oil in the same place, leaking from the under side of the new seal. Going to have a closer look at the weekend.

It looks like its leaking from the bottom of the seal to the rocker cover. :headbang:

that is dissapointing, it can't be seal then as it's brand new.. you did say that it needs to sit right, I wonder if there's a way to align it properly :|

Yeah it has an inner ridge, I'll have another look over the weekend. I did see an American forum mention putting a compound on that rid to help seal better, I wonder if its been an issue before.
 
Joycey said:
Buckz said:
Joycey said:
Update: So the last few days driving normally has been fine with the new seal, this morning with some quiet roads I had a chance to open her up and now I have oil in the same place, leaking from the under side of the new seal. Going to have a closer look at the weekend.

It looks like its leaking from the bottom of the seal to the rocker cover. :headbang:

that is dissapointing, it can't be seal then as it's brand new.. you did say that it needs to sit right, I wonder if there's a way to align it properly :|

Yeah it has an inner ridge, I'll have another look over the weekend. I did see an American forum mention putting a compound on that rid to help seal better, I wonder if its been an issue before.

cool, let me know how you find it! hopefully I'll get the time to do mine this weekend and report back.

can't find any torque details in the TIS re the seal have you found anything?
 
Buckz said:
Joycey said:
Buckz said:
that is dissapointing, it can't be seal then as it's brand new.. you did say that it needs to sit right, I wonder if there's a way to align it properly :|

Yeah it has an inner ridge, I'll have another look over the weekend. I did see an American forum mention putting a compound on that rid to help seal better, I wonder if its been an issue before.

cool, let me know how you find it! hopefully I'll get the time to do mine this weekend and report back.

can't find any torque details in the TIS re the seal have you found anything?

Nothing official other than someone stating 9nm so not much at all. I think that's because those little bolts are ally.
 
If you still have leaking, check the condition of the ccv as a blocked one will put extra pressure on gaskets due to crankcase pressurisation.
Rob
 
Smartbear said:
If you still have leaking, check the condition of the ccv as a blocked one will put extra pressure on gaskets due to crankcase pressurisation.
Rob

Mine has the internal ccv so no way of inspecting it really.. :/
 
Buckz said:
Smartbear said:
If you still have leaking, check the condition of the ccv as a blocked one will put extra pressure on gaskets due to crankcase pressurisation.
Rob

Mine has the internal ccv so no way of inspecting it really.. :/

You can check it's working by looking at the amount of "pull" needed to open the oil filler cap with the engine running, it shouldn't be much.
You can also see if the inlet is coated in oil by removing the disa & having a peep/wipe around :thumbsup:
Rob
 
Actually there is a way unless I'm looking at the wrong part?
https://vanos-bmw.com/valve-cover-n51-n52-n52n-bmw-11127552281

Not to check but to replace (it's a £10 part)
 
Smartbear said:
Buckz said:
Smartbear said:
If you still have leaking, check the condition of the ccv as a blocked one will put extra pressure on gaskets due to crankcase pressurisation.
Rob

Mine has the internal ccv so no way of inspecting it really.. :/

You can check it's working by looking at the amount of "pull" needed to open the oil filler cap with the engine running, it shouldn't be much.
You can also see if the inlet is coated in oil by removing the disa & having a peep/wipe around :thumbsup:
Rob

checked the suction and it's not too bad, flap opens without too much force. Got nothing to compare it to so no idea.

I will be replacing my seal this weekend as it's been leaking more lately :headbang:
 
Joycey said:
Buckz said:
Joycey said:
Yeah it has an inner ridge, I'll have another look over the weekend. I did see an American forum mention putting a compound on that rid to help seal better, I wonder if its been an issue before.

cool, let me know how you find it! hopefully I'll get the time to do mine this weekend and report back.

can't find any torque details in the TIS re the seal have you found anything?

Nothing official other than someone stating 9nm so not much at all. I think that's because those little bolts are ally.

did you manage to fix this in the end? i'm replacing my seal tomorrow.. we'll see how that goes.

wonder if it's actually worth replacing the alu bolts. I can't find any info anywhere..
 
Buckz said:
Joycey said:
Buckz said:
cool, let me know how you find it! hopefully I'll get the time to do mine this weekend and report back.

can't find any torque details in the TIS re the seal have you found anything?

Nothing official other than someone stating 9nm so not much at all. I think that's because those little bolts are ally.

did you manage to fix this in the end? i'm replacing my seal tomorrow.. we'll see how that goes.

wonder if it's actually worth replacing the alu bolts. I can't find any info anywhere..

Tomorrow mate. I have a car mid build on my lift at the moment so need that finished.
 
Joycey said:
Buckz said:
Joycey said:
Nothing official other than someone stating 9nm so not much at all. I think that's because those little bolts are ally.

did you manage to fix this in the end? i'm replacing my seal tomorrow.. we'll see how that goes.

wonder if it's actually worth replacing the alu bolts. I can't find any info anywhere..

Tomorrow mate. I have a car mid build on my lift at the moment so need that finished.

Coolios! :)

Found the torque specs..

http://tis.bmwcats.com/doc1101573/
 
Anyway, I'm back. After stripping it all down the gasket I got doesn't fit. It needs to be the same part that Joycey has. Aka a gasket and the surrounding plate. The one I got was just internal bit but you can't remove it.

Which dealer sold yours Joycey? They seem to sell the part I've got and the part you've got which is the one I need.

Annoying to say the least. :headbang:
 
Buckz said:
Anyway, I'm back. After stripping it all down the gasket I got doesn't fit. It needs to be the same part that Joycey has. Aka a gasket and the surrounding plate. The one I got was just internal bit but you can't remove it.

Which dealer sold yours Joycey? They seem to sell the part I've got and the part you've got which is the one I need.

Annoying to say the least. :headbang:

That is annoying! I still didn't get round to doing mine. It was Gaydon BMW show over the weekend so I ran out of time. I always quote my own BMW part numbers when ordering parts "11127552280" saves the confusion.

Lee
 
Joycey said:
Buckz said:
Anyway, I'm back. After stripping it all down the gasket I got doesn't fit. It needs to be the same part that Joycey has. Aka a gasket and the surrounding plate. The one I got was just internal bit but you can't remove it.

Which dealer sold yours Joycey? They seem to sell the part I've got and the part you've got which is the one I need.

Annoying to say the least. :headbang:

That is annoying! I still didn't get round to doing mine. It was Gaydon BMW show over the weekend so I ran out of time. I always quote my own BMW part numbers when ordering parts "11127552280" saves the confusion.

Lee

Thanks, I'll call up the local dealer and see if I can get part in! :)
 
got the part and replaced it today.. :) cleaned up the engine a little and hopefully it'll be good! will track it and report.

part number - 11127552280 if anyone ever diggs this thread out.

took me 30 mins or so -;

found this very useful -;

http://www.pelicanparts.com/BMW/techarticles/BMW-3-Series-E90/FUEL-Valvetronic_Motor_Replacing/FUEL-Valvetronic_Motor_Replacing.htm

doesn't really need any codding.
 
Your leak stopped Buckz ? I took mine off and placed some Hylomar blue round the edge to help seal it. No leaks for a week now. Did it at the same time I changed the starter motor :driving:
 
Joycey said:
Your leak stopped Buckz ? I took mine off and placed some Hylomar blue round the edge to help seal it. No leaks for a week now. Did it at the same time I changed the starter motor :driving:

need to take the engine cover off to check if it's still collecting near the spark plugs, I've driven it hard a few times now so if it is still leaking I'd expect to see it.

Will check today/tomorrow depending on the weather! hopefully has, if not I'll have to get some of the too :?
 
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