Close

Page 1 of 2 12 LastLast
Results 1 to 25 of 26
  1. #1
    Join Date
    Feb 2010
    Location
    San Diego
    Posts
    77
    Rep Points
    59.7
    Mentioned
    8 Post(s)
    Rep Power
    0


    Yes Reputation No

    AR Design Bombproof gasket failure

    Has anyone experienced failure of their AR bombproof DP gaskets?

    Six months ago when I got my LSD installed, the shop found my 2 year-old (10k-mile) gaskets had failed and so replaced them. Today while poking around under the car for an oil leak I found the new set had also failed.

    My AR retailer suggests that "bombproof" is probably a bit of a misnomer, and that I should expect them to fail, though perhaps not as often as I'm seeing.

    I contacted AR directly and sent pictures, but never received any response.

    I know there's the possibility of an installation error, but to me everything looks kosher and unstressed under there.

    I suppose I might also have clogged secondary cats, but my logs don't support that theory.

    Any other ideas? Any better alternatives out there?

    Thanks in advance.

    -Rob
    Attached Images Attached Images   

  2. #2
    Join Date
    Feb 2013
    Posts
    92
    Rep Points
    27.2
    Mentioned
    0 Post(s)
    Rep Power
    0


    Yes Reputation No
    Always use BMW OE parts

  3. #3
    Join Date
    Nov 2009
    Location
    Simi Valley, CA
    Posts
    8,065
    Rep Points
    9,039.0
    Mentioned
    637 Post(s)
    Rep Power
    91


    Yes Reputation No
    I prefer the BMS gaskets myself. Click here to enlarge But the OEM gaskets hold up very well too. Maybe try OEM next.
    Burger Motorsports
    Home of the Worlds fastest N20s, N54s, N55s, N63s, S55s, and S63s!

    It is the sole responsibility of the purchaser and installer of any BMS part to employ the correct installation techniques required to ensure the proper operation of BMS parts, and BMS disclaims any and all liability for any part failure due to improper installation or use. It is the sole responsibility of the customer to verify that the use of their vehicle and items purchased comply with federal, state and local regulations. BMS claims no legal federal, state or local certification concerning pollution controlled motor vehicles or mandated emissions requirements. BMS products labeled for use only in competition racing vehicles may only be used on competition racing vehicles operated exclusively on a closed course in conjunction with a sanctioned racing event, in accordance with all federal and state laws, and may never be operated on public roads/highways. Please see http://www.burgertuning.com/emissions_info.html for more information on legal requirements related to use of BMS parts.

  4. #4
    Join Date
    Aug 2012
    Location
    Tallahassee
    Posts
    1,483
    Rep Points
    17.1
    Mentioned
    34 Post(s)
    Rep Power
    0


    Yes Reputation No
    You should use OEM. I've had luck with Terry's gaskets as well.

  5. #5
    Join Date
    Jun 2010
    Location
    Chicago, IL
    Posts
    919
    Rep Points
    780.4
    Mentioned
    42 Post(s)
    Rep Power
    8


    Yes Reputation No
    The so called "Bomb proof" gaskets are complete $#@!. Mine have also failed after about 1 year of use. Those gaskets are basically a piece of cardboard sandwitched between two pieces of metal foil. At some point, they will shrink and compress creating a small leak. Soon after that the exhaust gasses will completely destroy the gasket.


    The best gaskets that I've ever found for our exhaust system are full copper ones sold by Summit Racing here:

    Click here to enlarge

    http://www.summitracing.com/parts/sce-4200/overview/

    If you can see, the round portion of the copper gasket is embossed. When you tighten the screws, it gets compressed and it creates perfect seal.
    From all the things I've lost,
    I miss my mind the most!
    Click here to enlarge

  6. #6
    Join Date
    Nov 2012
    Location
    CA
    Posts
    131
    Rep Points
    443.7
    Mentioned
    14 Post(s)
    Rep Power
    5


    Yes Reputation No
    Could also be a warped flange, or excessive heat causing the mating surface to deform. Once that happens, heat will destroy the gasket.

    We've had success with the gaskets mentioned, but have also taken steps to true up flanges before the replacements were installed.

    Either way, it's going to happen from time to time. I wish you the best of luck with your next choice!

    -Anthony
    Engine Builder, Tuner, Installation Specialist

    FFTEC Motorsports
    http://www.fftec.com

    See what I am up to at the shop here:
    http://www.facebook.com/anthonyatfftec

  7. #7
    Join Date
    Jan 2010
    Location
    SoCal
    Posts
    118,829
    Rep Points
    31,808.7
    Mentioned
    2087 Post(s)
    Rep Power
    319


    Yes Reputation No
    Out of curiosity why is a copper gasket better? Won't the metal expand/contract?

    Stage 2 or 2.5 E9X M3 S65 V8 supercharger kit for sale
    : http://www.boostaddict.com/showthrea...r-kit-for-sale

  8. #8
    Join Date
    Jun 2010
    Location
    Chicago, IL
    Posts
    919
    Rep Points
    780.4
    Mentioned
    42 Post(s)
    Rep Power
    8


    Yes Reputation No
    Click here to enlarge Originally Posted by Sticky Click here to enlarge
    Out of curiosity why is a copper gasket better? Won't the metal expand/contract?
    Copper is soft and pliable. So, when you tighten the bolts it will get crushed and create a perfect seal to its mating surfaces. Also, because its flexible and pliable, it will survive vibrations and twisting forces better. Another common use for copper gaskets are the washers for the oil drain plugs. The bolt "crushes" the copper washer in place creating a perfect seal. They are also called "crush washers"
    From all the things I've lost,
    I miss my mind the most!
    Click here to enlarge

  9. #9
    Join Date
    Jan 2010
    Location
    SoCal
    Posts
    118,829
    Rep Points
    31,808.7
    Mentioned
    2087 Post(s)
    Rep Power
    319


    Yes Reputation No
    Click here to enlarge Originally Posted by vasillalov Click here to enlarge
    Copper is soft and pliable. So, when you tighten the bolts it will get crushed and create a perfect seal to its mating surfaces. Also, because its flexible and pliable, it will survive vibrations and twisting forces better. Another common use for copper gaskets are the washers for the oil drain plugs. The bolt "crushes" the copper washer in place creating a perfect seal. They are also called "crush washers"
    Ok I hear you but it won't crumble or become brittle?

    Stage 2 or 2.5 E9X M3 S65 V8 supercharger kit for sale
    : http://www.boostaddict.com/showthrea...r-kit-for-sale

  10. #10
    Join Date
    Jun 2010
    Location
    Chicago, IL
    Posts
    919
    Rep Points
    780.4
    Mentioned
    42 Post(s)
    Rep Power
    8


    Yes Reputation No
    Click here to enlarge Originally Posted by Sticky Click here to enlarge
    Ok I hear you but it won't crumble or become brittle?
    Nope. That's the beauty of copper. Actually in metallurgy copper is added to alloys to prevent alloys from being brittle and crumbly. Click here to enlarge
    From all the things I've lost,
    I miss my mind the most!
    Click here to enlarge

  11. #11
    Join Date
    Jan 2010
    Location
    SoCal
    Posts
    118,829
    Rep Points
    31,808.7
    Mentioned
    2087 Post(s)
    Rep Power
    319


    Yes Reputation No
    Click here to enlarge Originally Posted by vasillalov Click here to enlarge
    Nope. That's the beauty of copper. Actually in metallurgy copper is added to alloys to prevent alloys from being brittle and crumbly. Click here to enlarge
    Click here to enlarge

    Stage 2 or 2.5 E9X M3 S65 V8 supercharger kit for sale
    : http://www.boostaddict.com/showthrea...r-kit-for-sale

  12. #12
    Join Date
    Jul 2011
    Location
    Boston
    Posts
    78
    Rep Points
    67.0
    Mentioned
    0 Post(s)
    Rep Power
    0


    Yes Reputation No
    One of my AR ones is starting to leak, they are just cheap crap, putting the oe ones back this winter!
    2008 E93 Giac Stage 2, HPF IC, Injen Intake, Defective AR Design DP's with useless cats
    2014 X3 35i JB Stage 1

  13. #13
    Join Date
    Jun 2010
    Location
    Boynton Beach, FL
    Posts
    1,209
    Rep Points
    1,449.2
    Mentioned
    61 Post(s)
    Rep Power
    0


    Yes Reputation No
    I always try to reuse the oem gaskets when I install dp's. They are pretty good. I think around. $20 for a pair at the stealer.

  14. #14
    Join Date
    Nov 2012
    Location
    Seneca, SC
    Posts
    291
    Rep Points
    631.5
    Mentioned
    5 Post(s)
    Rep Power
    7


    1 out of 1 members liked this post. Yes Reputation No
    My OEM gaskets were not usable when doing my downpipes. I found felpro 60308. Fit perfect and still are working great.

    http://shop.advanceautoparts.com/web...rchTerm=60308+

  15. #15
    Join Date
    Dec 2012
    Posts
    287
    Rep Points
    364.6
    Mentioned
    6 Post(s)
    Rep Power
    4


    Yes Reputation No
    Hmm so should I go with the copper ones by summit racing or the felpro ones? Both look good to me and i'm looking to finally have trouble free gaskets. I've had about 2-3 sets of gaskets wind up failing and causing a leak
    Click here to enlarge < Click picture for photoshoot
    E90 335i xDrive 6spd, Nav, Prem, Cold Weather, & Sports package - Msport Conversion
    Mods: JB4 + MHD, Doc Race ST, Pure 6266, AD-Eng PI/Mounts, Fuel-It st. 3, Custom Exhaust, Tuned by TwistedTuning
    More Pictures: Build Thread /// Dyno Soon to Come

  16. #16
    Join Date
    Nov 2012
    Location
    Seneca, SC
    Posts
    291
    Rep Points
    631.5
    Mentioned
    5 Post(s)
    Rep Power
    7


    Yes Reputation No
    I have had mine for 6 months and the look great and have zero leaks. They are double layer so it will help if the flange is warped at all.

  17. #17
    Join Date
    Dec 2012
    Posts
    287
    Rep Points
    364.6
    Mentioned
    6 Post(s)
    Rep Power
    4


    Yes Reputation No
    Click here to enlarge Originally Posted by blaster3500 Click here to enlarge
    I have had mine for 6 months and the look great and have zero leaks. They are double layer so it will help if the flange is warped at all.
    Well I just ordered two of those so hopefully they will work well
    Click here to enlarge < Click picture for photoshoot
    E90 335i xDrive 6spd, Nav, Prem, Cold Weather, & Sports package - Msport Conversion
    Mods: JB4 + MHD, Doc Race ST, Pure 6266, AD-Eng PI/Mounts, Fuel-It st. 3, Custom Exhaust, Tuned by TwistedTuning
    More Pictures: Build Thread /// Dyno Soon to Come

  18. #18
    Join Date
    Oct 2011
    Posts
    1,058
    Rep Points
    1,149.6
    Mentioned
    39 Post(s)
    Rep Power
    12


    Yes Reputation No
    IMO it looks like the flanges werent perfectly parallel, causing an exhaust leak.

  19. #19
    Join Date
    Jan 2013
    Location
    Toronto
    Posts
    262
    Rep Points
    326.9
    Mentioned
    13 Post(s)
    Rep Power
    4


    Yes Reputation No
    What are the symptoms of a failed gasket?

  20. #20
    Join Date
    Feb 2010
    Location
    San Diego
    Posts
    77
    Rep Points
    59.7
    Mentioned
    8 Post(s)
    Rep Power
    0



    Yes Reputation No
    @Tzu: I tend to agree with your assessment.
    @triggz: for me the only symptom is visible soot around the leak.

  21. #21
    Join Date
    Apr 2013
    Location
    GA
    Posts
    47
    Rep Points
    158.3
    Mentioned
    2 Post(s)
    Rep Power
    2


    Yes Reputation No
    I would just like to state that copper will in fact become brittle over time and isn't meant to bend and flex very often.
    Yes it is great for creating a perfect seal, but it should not be used in high vibration applications.

    When I was looking at using copper piping for a motorcycle fuel line, I was told it would crack over time due to the constant vibration. To combat this, people loop the lines.

    In short, I would try OEM or the BMS if others have had similar positive dealings with that piece.

  22. #22
    Join Date
    Oct 2011
    Posts
    1,058
    Rep Points
    1,149.6
    Mentioned
    39 Post(s)
    Rep Power
    12


    Yes Reputation No
    I'm only trying to clarify that it was a leak and not a "failure". Not like it burned through or disintegrated. I've had good success with the AR gaskets, but also had a similar leak when my DPs were misaligned. Stacked gaskets and 8 sheared grade 12 bolts later, and it's sealed.

  23. #23
    Join Date
    May 2013
    Posts
    19
    Rep Points
    65.4
    Mentioned
    0 Post(s)
    Rep Power
    0


    Yes Reputation No
    Mine failed within a month didn't feel like pursuing went to a meineke they used whatever brand they had and it's been over a year no issues

  24. #24
    Join Date
    Jul 2011
    Location
    Boston
    Posts
    78
    Rep Points
    67.0
    Mentioned
    0 Post(s)
    Rep Power
    0


    Yes Reputation No
    My gaskets did however last longer than the cats in my ar down pipes!
    2008 E93 Giac Stage 2, HPF IC, Injen Intake, Defective AR Design DP's with useless cats
    2014 X3 35i JB Stage 1

  25. #25
    Join Date
    Sep 2012
    Posts
    135
    Rep Points
    162.0
    Mentioned
    2 Post(s)
    Rep Power
    2


    Yes Reputation No
    Click here to enlarge Originally Posted by Roadkillrob Click here to enlarge
    My gaskets did however last longer than the cats in my ar down pipes!
    If you are running an overly rich tune, or have high EGTs you will nuke your cats.

    Also my AR gaskets have failed as well, and am using muffler cement. Will be trying RBTurbos gasket kit which I think is just OE gaskets when I do my turbo upgrade.

Page 1 of 2 12 LastLast

Tags for this Thread

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may post replies
  • You may not post attachments
  • You may not edit your posts
  •