{"product_id":"esr3701-downpipe-assembly","title":"Downpipe Assembly","description":"\u003ch1\u003eProper Break-In Can Prevent Future Problems\u003c\/h1\u003e\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\u003cp\u003eFigure 1 - Matting Wrapped around Substrate (Click to enlarge)\u003c\/p\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cp\u003eFigure 2 - Converter Matting (Click to enlarge)\u003c\/p\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cp\u003eFigure 3 - Matting Expansion Chart (Click to enlarge)\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003eA replacement catalytic converter needs to undergo a proper “break-in” procedure to ensure that it will con­tinue to work the way it is supposed to and deliver the required emissions reliability and long service life. If the converter is not warmed-up properly (broken-in), the substrate inside could be adversely affected and eventually cause the converter to fail down the road.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA proper break-in period is required for a correct installation:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe problem typically occurs when a shop installs the converter and immediately returns the vehicle to the customer without warming up (breaking-in) the cat.\u003c\/p\u003e\n\u003cp\u003eThe customer drives away and runs the car for a long distance or lets the vehicle idle for an extended period of time. Under these conditions, the matting, which is intended to secure the substrate will not expand properly and hold it in place.\u003c\/p\u003e\n\u003cp\u003eConverter matting is made from a mineral called vermicu­lite, which is held together by a fiber mat and an organic binder.\u003c\/p\u003e\n\u003cp\u003eIf that warm up is not done properly, the brick can come loose and get damaged. That rattle you might hear inside the converter shell is a sure telltale for this problem.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWarm up that cat first.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe best way to avoid this service issue and potential war­ranty problems is to include the warm-up period as a key part of your overall converter installation procedure. This heating cycle will allow for correct matting expansion.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHere are suggested steps for a proper break-in or warm-up:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eStart engine but do not touch the accelerator pedal.\u003c\/li\u003e\n\u003cli\u003eIdle the engine and allow it to warm up slowly.\u003c\/li\u003e\n\u003cli\u003eAfter 5 minutes, increase the engine speed to 2500 RPM.\u003c\/li\u003e\n\u003cli\u003eHold at 2500 RPM for 2 minutes.\u003c\/li\u003e\n\u003cli\u003eAllow engine to cool down.\u003c\/li\u003e\n\u003cli\u003eRoad test vehicle to confirm correct installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\u003cbr\u003e\u003cbr\u003eSpecifications:\u003cbr\u003e\u003cul\u003e\u003cli\u003eRange Rover P38 - V8 Petrol models without catalysts from VIN VA346794 to WA410481 except Australia - Twin, without catalysts - Quantity Required - 1\u003c\/li\u003e\u003c\/ul\u003e","brand":"JLR","offers":[{"title":"Default Title","offer_id":58400723075446,"sku":"ESR3701","price":1612.61,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0944\/1525\/7974\/files\/618a4a08-755b-47de-b1a5-594e1686c18a.jpg?v=1791537420","url":"https:\/\/mossrimmer.eu\/products\/esr3701-downpipe-assembly","provider":"Moss Rimmer EU","version":"1.0","type":"link"}