{"product_id":"single-vanos-anti-rattle-bearing-kit","title":"Single VANOS Anti-Rattle Bearing Kit","description":"\u003ch2\u003eBMW Single VANOS High-Performance Bearing Rattle Repair Kit\u003c\/h2\u003e\n\u003cp\u003eEliminate the infamous BMW Single VANOS rattle with our \u003cstrong\u003eHigh-Performance Single VANOS Bearing Rattle Repair Kit\u003c\/strong\u003e, engineered specifically for BMW Single VANOS units.\u003c\/p\u003e\n\u003cp\u003eAs BMW Single VANOS units accumulate mileage, wear within the piston bearing assembly can create excessive axial play. The result is the familiar metallic VANOS rattle coming from the front of the engine, often described as \u003cstrong\u003emarbles or rocks rattling around inside the timing system\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eOur bearing kit replaces the worn factory bearing components with a \u003cstrong\u003ehigh-performance roller bearing assembly \u003c\/strong\u003edesigned to reduce unwanted movement, eliminate VANOS bearing rattle, and restore proper operation of the VANOS piston assembly.\u003c\/p\u003e\n\u003cp\u003eThis kit is designed for Single VANOS units found on BMW \u003cstrong\u003eM50TU, M52, S50, and S52 engines. (Does not fit European S50B32 engines)\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003eKit Includes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 VANOS Bearing Ring\u003c\/li\u003e\n\u003cli\u003e2 High-Performance Roller Bearings\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eIndividually Fitment Checked\u003c\/h3\u003e\n\u003cp\u003eBearing fit is extremely important when rebuilding a VANOS unit.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEvery bearing kit is checked for proper fit using a brand-new VANOS unit before it leaves us.\u003c\/strong\u003e This gives us a known factory-spec reference point for the bearing assembly.\u003c\/p\u003e\n\u003cp\u003eHowever, your VANOS unit may have accumulated decades of wear. Because of variations in wear between individual units, \u003cstrong\u003eminor adjustment of the bearing ring or race may be required to achieve the correct fit and preload in your specific VANOS assembly.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis is normal and allows the bearing assembly to be precisely fitted to your VANOS rather than relying on a one-size-fits-all tolerance.\u003c\/p\u003e\n\u003ch3\u003eWhat Does VANOS Bearing Rattle Sound Like?\u003c\/h3\u003e\n\u003cp\u003eA worn Single VANOS bearing assembly typically creates a metallic rattling or buzzing noise from the front of the engine. Many owners describe it as sounding like \u003cstrong\u003ea handful of marbles or small rocks being shaken around inside the VANOS unit\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe noise may be especially noticeable at certain engine speeds and can easily be mistaken for timing chain or timing system noise.\u003c\/p\u003e\n\u003cp\u003eReplacing the worn bearing components and properly setting the bearing preload helps eliminate this excessive movement and restore proper VANOS operation.\u003c\/p\u003e\n\u003ch3\u003eDon't Be Fooled by Cheap VANOS Bearing Kits\u003c\/h3\u003e\n\u003cp\u003eNot all VANOS rebuild components are created equal.\u003c\/p\u003e\n\u003cp\u003eThere are cheaper bearing kits available online, but \u003cstrong\u003ebearing quality, tolerances, and fitment matter\u003c\/strong\u003e. There's a reason some kits cost significantly less.\u003c\/p\u003e\n\u003cp\u003eOur high-performance roller bearing components are specifically selected for the BMW Single VANOS application, and \u003cstrong\u003eevery kit is checked in a brand-new VANOS unit for proper reference fitment before being sold\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eWhen you're taking apart your VANOS unit, saving a few dollars on one of the most important components inside it isn't worth doing the job twice.\u003c\/p\u003e\n\u003ch3\u003eBearing Fitment \u0026amp; Adjustment\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e Because used VANOS units can have different amounts of wear, some bearing assemblies may require minor adjustment during installation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e400-grit sandpaper must be used for the following adjustment procedures.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch4\u003eTo Tighten the Bearing\u003c\/h4\u003e\n\u003cp\u003eIf \u003cstrong\u003eaxial play is present or there is insufficient preload\u003c\/strong\u003e, the bearing ring can be carefully sanded to tighten the assembly.\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003ePlace a sheet of \u003cstrong\u003e400-grit sandpaper\u003c\/strong\u003e on a solid, completely flat surface.\u003c\/li\u003e\n\u003cli\u003eUsing medium pressure, sand one surface of the bearing ring back and forth approximately \u003cstrong\u003e6–8 inches, 30–40 times\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eRotate the ring \u003cstrong\u003e90 degrees\u003c\/strong\u003e and repeat the sanding procedure.\u003c\/li\u003e\n\u003cli\u003eFlip the ring over and repeat the procedure on the opposite surface.\u003c\/li\u003e\n\u003cli\u003eRotate the ring another \u003cstrong\u003e90 degrees\u003c\/strong\u003e and repeat.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eThis procedure removes only a very small amount of material—approximately \u003cstrong\u003e0.004–0.006 mm from the total thickness of the ring\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eReassemble and check bearing fit and preload. Repeat only if additional adjustment is necessary.\u003c\/p\u003e\n\u003ch4\u003eTo Loosen the Bearing\u003c\/h4\u003e\n\u003cp\u003eIf \u003cstrong\u003eexcessive force is required to rotate the VANOS piston\u003c\/strong\u003e, the bearing race can be carefully sanded to increase clearance.\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003ePlace a sheet of \u003cstrong\u003e400-grit sandpaper\u003c\/strong\u003e on a solid, completely flat surface.\u003c\/li\u003e\n\u003cli\u003eUsing medium pressure, sand one surface of the bearing race back and forth approximately \u003cstrong\u003e6–8 inches, 30–40 times\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eRotate the race \u003cstrong\u003e90 degrees\u003c\/strong\u003e and repeat the sanding procedure.\u003c\/li\u003e\n\u003cli\u003eFlip the race over and repeat the procedure on the opposite surface.\u003c\/li\u003e\n\u003cli\u003eRotate the race another \u003cstrong\u003e90 degrees\u003c\/strong\u003e and repeat.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eThis procedure removes approximately \u003cstrong\u003e0.004–0.006 mm from the total thickness of the race\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eReassemble and check the piston for proper movement. Repeat only if additional adjustment is required.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAlways remove material gradually. It is much easier to remove additional material than to correct a component that has been sanded too far.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003eFitment Guide\u003c\/h3\u003e\n\u003cp\u003eThis bearing kit is designed for applicable BMW \u003cstrong\u003eSingle VANOS\u003c\/strong\u003e units used with the M50TU, M52, S50, and S52 engine families.\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eChassis\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eYears \/ Production\u003c\/th\u003e\n\u003cth\u003eEngine\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eE36\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e320i\u003c\/td\u003e\n\u003ctd\u003e1992–1998\u003c\/td\u003e\n\u003ctd\u003eM50TU \/ M52\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eE36\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e323i \/ 323is\u003c\/td\u003e\n\u003ctd\u003e1995–1999\u003c\/td\u003e\n\u003ctd\u003eM52\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eE36\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e325i \/ 325is\u003c\/td\u003e\n\u003ctd\u003e1992–1995\u003c\/td\u003e\n\u003ctd\u003eM50TU\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eE36\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e328i \/ 328is\u003c\/td\u003e\n\u003ctd\u003e1995–1999\u003c\/td\u003e\n\u003ctd\u003eM52\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eE36\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eM3 (US)\u003c\/td\u003e\n\u003ctd\u003e1995\u003c\/td\u003e\n\u003ctd\u003eS50B30US\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eE36\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eM3 (US)\u003c\/td\u003e\n\u003ctd\u003e1996–1999\u003c\/td\u003e\n\u003ctd\u003eS52B32\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eE34\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e520i\u003c\/td\u003e\n\u003ctd\u003e1992–1995\u003c\/td\u003e\n\u003ctd\u003eM50TU\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eE34\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e525i\u003c\/td\u003e\n\u003ctd\u003e1992–1995\u003c\/td\u003e\n\u003ctd\u003eM50TU\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eE34\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e525ix\u003c\/td\u003e\n\u003ctd\u003e1992–1995\u003c\/td\u003e\n\u003ctd\u003eM50TU\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eE39\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e520i\u003c\/td\u003e\n\u003ctd\u003e1996–1998\u003c\/td\u003e\n\u003ctd\u003eM52\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eE39\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e523i\u003c\/td\u003e\n\u003ctd\u003e1996–1998\u003c\/td\u003e\n\u003ctd\u003eM52\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eE39\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e528i\u003c\/td\u003e\n\u003ctd\u003e1996–9\/1998\u003c\/td\u003e\n\u003ctd\u003eM52\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eE38\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e728i \/ 728iL\u003c\/td\u003e\n\u003ctd\u003e1995–1998\u003c\/td\u003e\n\u003ctd\u003eM52\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eE36\/7\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eZ3 2.8\u003c\/td\u003e\n\u003ctd\u003e1997–1998\u003c\/td\u003e\n\u003ctd\u003eM52\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eE36\/7\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eZ3 M Roadster (US)\u003c\/td\u003e\n\u003ctd\u003e1998–2000\u003c\/td\u003e\n\u003ctd\u003eS52B32\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eE36\/8\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eZ3 M Coupe (US)\u003c\/td\u003e\n\u003ctd\u003e1999–2000\u003c\/td\u003e\n\u003ctd\u003eS52B32\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cbr\u003e\u003c\/h3\u003e\n\u003ch3\u003eImportant S50 Fitment Information\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eUS-spec S50B30US:\u003c\/strong\u003e The 1995 US-market E36 M3 uses a Single VANOS S50B30US engine and is an applicable Single VANOS application.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEuropean S50B30:\u003c\/strong\u003e Not Applicable.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEuropean S50B32:\u003c\/strong\u003e Not Applicable\u003c\/p\u003e\n\u003ch3\u003eImportant Production-Date Note\u003c\/h3\u003e\n\u003cp\u003eBMW changed several models from \u003cstrong\u003eM52 Single VANOS to M52TU Dual VANOS\u003c\/strong\u003e around the 1998–1999 production period. Model year alone is not always sufficient to determine which VANOS system is installed.\u003c\/p\u003e\n\u003cp\u003eFor vehicles produced around this transition, verify the \u003cstrong\u003eengine code and VANOS configuration\u003c\/strong\u003e before ordering.\u003c\/p\u003e\n\u003ch3\u003eFix the Rattle at the Source\u003c\/h3\u003e\n\u003cp\u003eIf your BMW's Single VANOS sounds like a box of marbles, don't just live with the noise. Our high-performance bearing kit addresses the excessive play within the VANOS bearing assembly and gives you the components needed to precisely fit the bearing to your individual VANOS unit.\u003c\/p\u003e\n\u003cp\u003eWhether you're repairing an existing VANOS rattle or performing a comprehensive VANOS rebuild, this is an ideal upgrade while the unit is already apart.\u003c\/p\u003e","brand":"VANOS Rebuild Kits","offers":[{"title":"Default Title","offer_id":43216523657310,"sku":"vrk-single-rattle-kit","price":35.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0673\/0845\/3982\/files\/bmw-single-vanos-rattle-kit03_064d43f7-cc3c-41e1-bdcf-fb9aa34afc14.png?v=1787744527","url":"https:\/\/vanosrebuildkits.com\/products\/single-vanos-anti-rattle-bearing-kit","provider":"VANOS Rebuild Kits","version":"1.0","type":"link"}