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Thread: WOLFN8TR'S ///M Project Thread!

  1. #1401
    Join Date
    Aug 2011
    Location
    Las Vegas, NV
    Posts
    5,712
    I was having systems of a blown head gasket on my M3. My cooling system was pressuring within minutes of starting the car. The car runs great and doesn’t over heat whatsoever even with our 105 degree weather.

    So I decided to take the cooling system back apart and inspect the orings and water pump gasket to see if they were causing the issue. I changed out all 4 of the orings behind the water pump with some Viton Orings. This fixed the problem.

    Turns out ECSTUNING sent me two different sizes for the two orings on the small hard pipes, one 16x3 and one 18x3. The 16x3 oring was on the lower hard pipe that comes from the expansion tank and was sucking air causing the system to pressurize. It also caused major cavitation and was eating up the inside of my Brand New water pump and Tstat.

    I wasn't too happy having to tear apart my entire cooling system again due to a undersized Oring but at least it wasn’t a blown head gasket.


    Orings replaced are in Red.









    16x3 and a 18x3mm Oring!





    New vs Old Tstat














    New Viton Orings


    Last edited by WOLFN8TR; 07-02-2019 at 08:39 AM.
    BAVSOUND Stage 1 - UltraGauge - Valentine One - Orion V4's - ARC-8's
    TTFS Engine/SMG Tune/CSL 255 - SGT Headers/Sect 1/SCZA - Evolve Eventuri
    VIS XTS CF Hood - CF Lip/Console/Diffuser - OE CSL Trunk - BWS 500S 9k/11k

  2. #1402
    Join Date
    Nov 2017
    Location
    Irvine, CA
    Posts
    112
    I saw this on m3f, glad you got it sorted out and that it wasn't a head gasket like the OP in that thread.

  3. #1403
    Join Date
    Aug 2011
    Location
    Las Vegas, NV
    Posts
    5,712
    Quote Originally Posted by Will View Post
    I saw this on m3f, glad you got it sorted out and that it wasn't a head gasket like the OP in that thread.
    I can't even imagine having to DIY a head gasket! I got lucky for sure.
    BAVSOUND Stage 1 - UltraGauge - Valentine One - Orion V4's - ARC-8's
    TTFS Engine/SMG Tune/CSL 255 - SGT Headers/Sect 1/SCZA - Evolve Eventuri
    VIS XTS CF Hood - CF Lip/Console/Diffuser - OE CSL Trunk - BWS 500S 9k/11k

  4. #1404
    Join Date
    Jan 1970
    Location
    Southern California
    Posts
    16,678
    That is awful, so glad you sorted it out!

    Sent from my SM-G955U using Tapatalk
    Randeaux/Rando/John/jr - '06 Cic ZHP; Southern California
    "ZHP or not, I still like you"


    ZHP Performance Package, Cold Weather Package, Leather, Jet Black/Black/BlackCube, NAV
    ESS Stage 1 Twin Screw Supercharger, Sprint Booster, BMW Perf Intake, Magnaflow Exhaust, Dinan TB & STEP S/W, Ground Control Coilovers, UCC Sway Bars, Apex EC-7 18x8.5 ET38
    Dynavin D99+, Hardwire V1 (w/V1 Connection), BSW Stage 1 Speakers, Kicker Amp/Subwoofer
    BMW Performance Strut Brace, Orion V2 Angel Eyes, No-holes License Plate, SMG Paddle Shift Mod, Besian VANOS, Gold DISA, Fan Delete, M3 Side Mirrors
    Note: Actual car no longer resembles signature picture

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