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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > keep blowing couplings



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      08-29-2011, 09:16 PM   #1
woodga16
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keep blowing couplings

like title says...ever since I've upgraded to an aftermarket FMIC I keep blowing either the top coupling to the charge pipe or the lower coupling that connects to intercooler. Best way to solve this?
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      08-29-2011, 09:21 PM   #2
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Did u install the small black clips that hold the radiator support, not sure Wa this is call. I didnt at first and my IC was kinda hanging low, the lower hose keep popping off, I put the clip back and problem solved. hard to explain
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      08-29-2011, 09:47 PM   #3
woodga16
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I used the adjustable stainless clamps. Don't believe it came with black clips...
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      08-29-2011, 09:50 PM   #4
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Switch to T-bolt clamps.
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      08-29-2011, 10:25 PM   #5
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T bolt clamps ? Not tight enough?
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      08-29-2011, 10:28 PM   #6
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I would caution against Tbolt clamps...they are in fact very strong..so strong that if you tighten to much you can crimp or break the piping which would def cause a leak...I am running over 16psi..and using only worm clamps w no issues..

Just go over each coupling and tighten..then go from there.
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      08-30-2011, 02:09 AM   #7
ttbmer
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Quote:
Originally Posted by woodga16 View Post
I used the adjustable stainless clamps. Don't believe it came with black clips...
No, the clips I'm taking abt are already on the car. U have to remove this in order to change the IC, I made the mistake of not installing 1 of them back and I keep causing 1 of my hoses to keep popping off.
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      08-30-2011, 02:28 AM   #8
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Use a stock charge pipe, and check your tune for huge boost spikes.
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      08-30-2011, 08:04 AM   #9
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Quote:
Originally Posted by tibra1 View Post
I would caution against Tbolt clamps...they are in fact very strong..so strong that if you tighten to much you can crimp or break the piping which would def cause a leak...I am running over 16psi..and using only worm clamps w no issues..

Just go over each coupling and tighten..then go from there.
I'm using the Tbolt clamps, but this is really good advice. On my ER FMIC, I definitely tightened the clamps on the metal piping tighter than on the plastic OEM pipe. I also checked for crimps and leaks afterward, because I was afraid of this exact scenario.
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      08-30-2011, 08:09 AM   #10
drfrink24
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Get some aquanet hairspray, spray the joint, re-install the clamps, tighten. Heard it works great.
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      08-30-2011, 09:20 AM   #11
woodga16
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I still use stock charge pipe. I'll try bolt clamps. thanks
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      08-30-2011, 10:41 AM   #12
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What IC do you have?
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      08-30-2011, 11:36 AM   #13
woodga16
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