Is this an air leak?

timothy2001 · 03-12-2015, 10:27 AM

May be tough to tell from the photo and I am considering replacing this replacement CP anyway but this looks like a leak to me. The picture is a shot of where the CP connects on the engine side.

What do you guys think? Installation error or no worries?

loesch · 03-12-2015, 09:06 PM

Is this one of those "when you see it" pictures cause I don't see it?

timothy2001 · 03-12-2015, 09:58 PM

That must be why there have been no responses, not even any sarcasm.

Dark discoloration where the CP attaches, kinda looks like an exhaust leak.

It appears to be minor if it is a leak but it's the C clamp and it's not like I can tighten it.

weehe126 · 03-12-2015, 10:53 PM

Spray some soapy water on it. Should be able to see movement if it is a leak.

timothy2001 · 03-13-2015, 06:07 AM

Thank you! Kinda like looking for a slow leak on a tire losing air.

mojobmw_e90 · 03-13-2015, 06:59 AM

No its not a leak. The charge pipe has a gasket inside that sits on the Grove of the tb.

inrev` · 03-13-2015, 06:15 PM

It appears your cp is snug up to the throttle body. I suggest double checking the O-ring you recycled from the stock cp for tears. If it is reusable, then reapply some silicon lube or WD40 and reinstall.

edit: my bad, are you actually claiming to be hearing a leak or something or ... visually..are you asking if there is a leak?

timothy2001 · 03-13-2015, 06:33 PM

Quote:

Originally Posted by inrev`

It appears your cp is snug up to the throttle body. I suggest double checking the O-ring you recycled from the stock cp for tears. If it is reusable, then reapply some silicon lube or WD40 and reinstall.

edit: my bad, are you actually claiming to be hearing a leak or something or ... visually..are you asking if there is a leak?

Both really. After installing the FMIC the sound changed which I guess should be expected. I noticed the discoloration around the throttle body and it looks like a leak. I'll hit it with some soapy water and see.

inrev` · 03-15-2015, 10:36 PM

Quote:

Originally Posted by timothy2001

Both really. After installing the FMIC the sound changed which I guess should be expected. I noticed the discoloration around the throttle body and it looks like a leak. I'll hit it with some soapy water and see.

Any update post soapy water? If you have any way of making smoke, maybe try doing a rudimentary smoke test?

mike5809 · 03-16-2015, 05:40 AM

Quote:

Originally Posted by inrev`

If you have any way of making smoke, maybe try doing a rudimentary smoke test?

Puff puff pass

timothy2001 · 03-16-2015, 05:51 AM

Quote:

Originally Posted by inrev`

Any update post soapy water? If you have any way of making smoke, maybe try doing a rudimentary smoke test?

Not yet but I will and will post result

03-12-2015, 10:27 AM	#1
timothy2001 Major 850 Rep 1,181 Posts Drives: 2011 E92 M3 6MT ZCP Join Date: Oct 2014 Location: NE Florida iTrader: (0) Garage List 2011 M3 E92 [0.00]	Is this an air leak? May be tough to tell from the photo and I am considering replacing this replacement CP anyway but this looks like a leak to me. The picture is a shot of where the CP connects on the engine side. What do you guys think? Installation error or no worries? Attached Images
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03-12-2015, 09:06 PM	#2
loesch Captain 129 Rep 917 Posts Drives: 2011 BMW 135i M Sport Join Date: Feb 2012 Location: State College, PA iTrader: (4)	Is this one of those "when you see it" pictures cause I don't see it?
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03-12-2015, 09:58 PM	#3
timothy2001 Major 850 Rep 1,181 Posts Drives: 2011 E92 M3 6MT ZCP Join Date: Oct 2014 Location: NE Florida iTrader: (0) Garage List 2011 M3 E92 [0.00]	That must be why there have been no responses, not even any sarcasm. Dark discoloration where the CP attaches, kinda looks like an exhaust leak. It appears to be minor if it is a leak but it's the C clamp and it's not like I can tighten it.
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03-12-2015, 10:53 PM	#4
weehe126 Brigadier General 1161 Rep 3,189 Posts Drives: 2017 340i Join Date: Apr 2014 Location: San Antonio iTrader: (2)	Spray some soapy water on it. Should be able to see movement if it is a leak.
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03-13-2015, 06:07 AM	#5
timothy2001 Major 850 Rep 1,181 Posts Drives: 2011 E92 M3 6MT ZCP Join Date: Oct 2014 Location: NE Florida iTrader: (0) Garage List 2011 M3 E92 [0.00]	Thank you! Kinda like looking for a slow leak on a tire losing air.
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03-13-2015, 06:59 AM	#6
mojobmw_e90 Major 380 Rep 1,497 Posts Drives: 2014 E63S Join Date: Oct 2014 Location: Chicago IL iTrader: (3)	No its not a leak. The charge pipe has a gasket inside that sits on the Grove of the tb.
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03-13-2015, 06:15 PM	#7
inrev` Private 5 Rep 76 Posts Drives: e92 335i m sport Join Date: Jul 2014 Location: SF Bay Area iTrader: (0)	It appears your cp is snug up to the throttle body. I suggest double checking the O-ring you recycled from the stock cp for tears. If it is reusable, then reapply some silicon lube or WD40 and reinstall. edit: my bad, are you actually claiming to be hearing a leak or something or ... visually..are you asking if there is a leak?
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