Oil leaks

AusMatty · 06-15-2016, 06:31 PM

Wondering what the common places are for oil leaks on an N54? Got a fairly substantial leak (topping up oil every few weeks) and kinda getting sick of it. I have already stopped oil from oil filter housing and a breather at the back of the motor, any other common points for a leak?
Car is also blowing a fair bit of smoke under boost, turbos on their way our??

Fuji · 06-16-2016, 03:14 AM

How did you stop oil leaking from the oil filter housing? Do you mean you replaced the seal?

Got a pic of where the leak is coming from? General area whereabouts? Top of engine? Front of engine? LHS? RHS?

Socket · 06-16-2016, 11:47 AM

With my smoking RBs I was topping up oil every few weeks. If there is no obvious leaks it may be your smokey turbos. On the upside means you can splash out for aftermarket turbos lel

AusMatty · 06-16-2016, 08:14 PM

The leak is coming from the rear of the motor, I am think valve cover gasket is leaking or the valve cover itself is cracked...

It is time for a turbo upgrade socks... wastegate rattle is getting annoying...

Fuji · 06-16-2016, 08:39 PM

Yeah could be VCG! Have you checked it's not coming from OFHG and trickling down?

AusMatty · 06-16-2016, 09:08 PM

Quote:

Originally Posted by Fuji

Yeah could be VCG! Have you checked it's not coming from OFHG and tricking down?

It was before but no more leaks from there, I am heading to Melbourne in a few weeks so ill leave it at my mates workshop for the week and he can sort it for me, just deciding whether to get a VCG before I go just in case...

Probably should get the valve cover too aye?

Fuji · 06-16-2016, 09:10 PM

Nah don't go purchasing a VC without knowing for sure it's cracked! They're like $450 new. I know harms has one up for $50 atm, could get that if you really want? VCG itself should be no more than $50

Mayuri Krab · 06-16-2016, 09:30 PM

Oil pan gasket (and less common the rear main seal) are also potential oil leak areas, if it's coming from "rear of the motor".

But sounds like leaky turbos if it's smoking under boost.

AusMatty · 06-16-2016, 09:39 PM

When I replaced the breather they said that there was a fair bit of oil at the back of the motor so im going to assume VCG, can't hurt to change it either way though...

Next will be new turbos...

Fuji · 06-17-2016, 01:30 AM

Quote:

Originally Posted by AusMatty

Next will be new turbos...

Ball out

AusMatty · 06-28-2016, 03:06 AM

So turns out it could be the rear right corner of the head gasket leaking... anyone heard of this happening before?

Socket · 06-28-2016, 03:10 AM

Nope

vtl · 06-28-2016, 03:21 AM

Quote:

Originally Posted by AusMatty

So turns out it could be the rear right corner of the head gasket leaking... anyone heard of this happening before?

Head gasket failures are extremely rare, most likely a misdiagnosed valve cover leak.

Fuji · 06-28-2016, 03:33 AM

Quote:

Originally Posted by vtl

Quote:

Originally Posted by AusMatty

So turns out it could be the rear right corner of the head gasket leaking... anyone heard of this happening before?

Head gasket failures are extremely rare, most likely a misdiagnosed valve cover leak.

+1

AusMatty · 07-01-2016, 02:39 AM

They cleaned everything and ill take it back on Monday to have another look, fingers crossed although if it is head gasket then maybe change turbos at the same time??

06-15-2016, 06:31 PM	#1
AusMatty Second Lieutenant 22 Rep 221 Posts Drives: E92 335i Join Date: Oct 2014 Location: Perth, Australia iTrader: (0)	Oil leaks Wondering what the common places are for oil leaks on an N54? Got a fairly substantial leak (topping up oil every few weeks) and kinda getting sick of it. I have already stopped oil from oil filter housing and a breather at the back of the motor, any other common points for a leak? Car is also blowing a fair bit of smoke under boost, turbos on their way our??
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06-16-2016, 03:14 AM	#2
Fuji Lieutenant 96 Rep 577 Posts Drives: SGM E92 335i Join Date: Oct 2013 Location: Melbourne, Victoria iTrader: (0)	How did you stop oil leaking from the oil filter housing? Do you mean you replaced the seal? Got a pic of where the leak is coming from? General area whereabouts? Top of engine? Front of engine? LHS? RHS? __________________ SGM E92 335i FBO [COLOR="Indigo"]/ MHD Stage 2 Plus / CP-E FMIC / DCI / VRSF DP / VRSF CP / Turbosmart Raceport BOV / BMW PE / H
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06-16-2016, 11:47 AM	#3
Socket Lieutenant General 4542 Rep 11,903 Posts Drives: 335i Join Date: Nov 2014 Location: Australia iTrader: (4) Garage List 2008 BMW E92 [0.00]	With my smoking RBs I was topping up oil every few weeks. If there is no obvious leaks it may be your smokey turbos. On the upside means you can splash out for aftermarket turbos lel
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06-16-2016, 08:14 PM	#4
AusMatty Second Lieutenant 22 Rep 221 Posts Drives: E92 335i Join Date: Oct 2014 Location: Perth, Australia iTrader: (0)	The leak is coming from the rear of the motor, I am think valve cover gasket is leaking or the valve cover itself is cracked... It is time for a turbo upgrade socks... wastegate rattle is getting annoying...
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06-16-2016, 08:39 PM	#5
Fuji Lieutenant 96 Rep 577 Posts Drives: SGM E92 335i Join Date: Oct 2013 Location: Melbourne, Victoria iTrader: (0)	Yeah could be VCG! Have you checked it's not coming from OFHG and trickling down? __________________ SGM E92 335i FBO [COLOR="Indigo"]/ MHD Stage 2 Plus / CP-E FMIC / DCI / VRSF DP / VRSF CP / Turbosmart Raceport BOV / BMW PE / H
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06-16-2016, 09:10 PM	#7
Fuji Lieutenant 96 Rep 577 Posts Drives: SGM E92 335i Join Date: Oct 2013 Location: Melbourne, Victoria iTrader: (0)	Nah don't go purchasing a VC without knowing for sure it's cracked! They're like $450 new. I know harms has one up for $50 atm, could get that if you really want? VCG itself should be no more than $50 __________________ SGM E92 335i FBO [COLOR="Indigo"]/ MHD Stage 2 Plus / CP-E FMIC / DCI / VRSF DP / VRSF CP / Turbosmart Raceport BOV / BMW PE / H
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06-16-2016, 09:30 PM	#8
Mayuri Krab The Cheap Arse Asian 47 Rep 585 Posts Drives: E90 335i & R33 Skyline GTS-T Join Date: Jun 2013 Location: Perth, Australia iTrader: (0)	Oil pan gasket (and less common the rear main seal) are also potential oil leak areas, if it's coming from "rear of the motor". But sounds like leaky turbos if it's smoking under boost.
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06-16-2016, 09:39 PM	#9
AusMatty Second Lieutenant 22 Rep 221 Posts Drives: E92 335i Join Date: Oct 2014 Location: Perth, Australia iTrader: (0)	When I replaced the breather they said that there was a fair bit of oil at the back of the motor so im going to assume VCG, can't hurt to change it either way though... Next will be new turbos...
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06-28-2016, 03:06 AM	#11
AusMatty Second Lieutenant 22 Rep 221 Posts Drives: E92 335i Join Date: Oct 2014 Location: Perth, Australia iTrader: (0)	So turns out it could be the rear right corner of the head gasket leaking... anyone heard of this happening before?
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06-28-2016, 03:10 AM	#12
Socket Lieutenant General 4542 Rep 11,903 Posts Drives: 335i Join Date: Nov 2014 Location: Australia iTrader: (4) Garage List 2008 BMW E92 [0.00]	Nope
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07-01-2016, 02:39 AM	#15
AusMatty Second Lieutenant 22 Rep 221 Posts Drives: E92 335i Join Date: Oct 2014 Location: Perth, Australia iTrader: (0)	They cleaned everything and ill take it back on Monday to have another look, fingers crossed although if it is head gasket then maybe change turbos at the same time??
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