{"product_id":"zylinderkopf-ventilfuhrung-erneuern-pro-stuck","title":"Cylinder head valve guide renewal – per piece","description":"\u003cdiv\u003e\r\n\t\u003cp\u003e\r\n\t\t\u003cspan data-mce-style=\"font-family: verdana,geneva,sans-serif; font-size: 10pt;\" style=\"font-family: verdana,geneva,sans-serif; font-size: 10pt;\"\u003eCylinder head valve guide renewal \u0026ndash; per piece\u003c\/span\u003e\r\n\t\u003c\/p\u003e\r\n\r\n\t\u003cp\u003e\r\n\t\t\u003cspan data-mce-style=\"font-family: verdana,geneva,sans-serif; font-size: 10pt;\" style=\"font-family: verdana,geneva,sans-serif; font-size: 10pt;\"\u003eRenewing a valve guide is a complex process that requires a great deal of expertise and the appropriate tools and machines. First, the old valve guide is pressed out and a new base bore is created. The new valve guide is mounted in a special way: By cooling with liquid nitrogen to -196 \u0026deg;C and heating the cylinder head, the valve guide is shrunk to fit precisely, ensuring a perfect and permanent, tight fit.\u003c\/span\u003e\r\n\t\u003c\/p\u003e\r\n\r\n\t\u003cp\u003e\r\n\t\t\u003cspan data-mce-style=\"font-family: verdana,geneva,sans-serif; font-size: 10pt;\" style=\"font-family: verdana,geneva,sans-serif; font-size: 10pt;\"\u003eAfter that, the valve guide is honed to size on the inside and given a cross-hatch pattern. Finally, the valve seat insert is precisely machined on a Serdi 100 contour milling machine to achieve the optimum shape and sealing effect. The result is an exact, long-lasting valve guide for maximum engine performance.\u003c\/span\u003e\r\n\t\u003c\/p\u003e\r\n\r\n\t\u003cul\u003e\r\n\t\t\u003cli\u003e\u003cspan data-mce-style=\"font-family: verdana,geneva,sans-serif; font-size: 10pt;\" style=\"font-family: verdana,geneva,sans-serif; font-size: 10pt;\"\u003ePress out the old valve guide\u003c\/span\u003e\u003c\/li\u003e\r\n\t\t\u003cli\u003e\u003cspan data-mce-style=\"font-family: verdana,geneva,sans-serif; font-size: 10pt;\" style=\"font-family: verdana,geneva,sans-serif; font-size: 10pt;\"\u003eCreate a new base bore\u003c\/span\u003e\u003c\/li\u003e\r\n\t\t\u003cli\u003e\u003cspan data-mce-style=\"font-family: verdana,geneva,sans-serif; font-size: 10pt;\" style=\"font-family: verdana,geneva,sans-serif; font-size: 10pt;\"\u003eHeat the cylinder head in a heating furnace\u003c\/span\u003e\u003c\/li\u003e\r\n\t\t\u003cli\u003e\u003cspan data-mce-style=\"font-family: verdana,geneva,sans-serif; font-size: 10pt;\" style=\"font-family: verdana,geneva,sans-serif; font-size: 10pt;\"\u003eShrink valve guide with the help of liquid nitrogen (-196\u0026deg;C)\u003c\/span\u003e\u003c\/li\u003e\r\n\t\t\u003cli\u003e\u003cspan data-mce-style=\"font-family: verdana,geneva,sans-serif; font-size: 10pt;\" style=\"font-family: verdana,geneva,sans-serif; font-size: 10pt;\"\u003eHone the inside of the valve guide to the final dimension and create cross-hatch grinding\u003c\/span\u003e\u003c\/li\u003e\r\n\t\t\u003cli\u003e\u003cspan data-mce-style=\"font-family: verdana,geneva,sans-serif; font-size: 10pt;\" style=\"font-family: verdana,geneva,sans-serif; font-size: 10pt;\"\u003ePrecisely machine the seat ring on the SERDI 100 contour milling machine\u003c\/span\u003e\u003c\/li\u003e\r\n\t\t\u003cli\u003e\u0026nbsp;\u003c\/li\u003e\r\n\t\u003c\/ul\u003e\r\n\r\n\t\u003cp\u003e\r\n\t\t\u003cspan data-mce-style=\"font-family: verdana,geneva,sans-serif; font-size: 10pt;\" style=\"font-family: verdana,geneva,sans-serif; font-size: 10pt;\"\u003eNote: In the case of multi-cylinder engines, the price is reduced if the valve guides are replaced and machined at the same time, possibly together with the valve seat inserts. Please obtain a separate quotation for this.\u003c\/span\u003e\r\n\t\u003c\/p\u003e\r\n\r\n\t\u003cp\u003e\r\n\t\t\u003cspan data-mce-style=\"font-family: verdana,geneva,sans-serif; font-size: 10pt;\" style=\"font-family: verdana,geneva,sans-serif; font-size: 10pt;\"\u003eThe valves and guides are not included in the scope of delivery.\u003c\/span\u003e\r\n\t\u003c\/p\u003e\r\n\u003c\/div\u003e\r\n\r\n\u003cdiv\u003e\r\n\t\u0026nbsp;\r\n\u003c\/div\u003e","brand":"Sport Evolution","offers":[{"title":"Default Title","offer_id":56805982830972,"sku":"MA-SE-20-80306-03-000","price":105.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0939\/2390\/1820\/files\/k-397A0334_12142.jpg?v=1779655792","url":"https:\/\/sport-evolution.de\/en\/products\/zylinderkopf-ventilfuhrung-erneuern-pro-stuck","provider":"Sport Evolution","version":"1.0","type":"link"}