{"product_id":"bmw-r45-r65-zylinderkopfuberholung-bleifrei-twinshock-monolever","title":"BMW R45 R65 Cylinder Head Overhaul Unleaded Twinshock \u0026 Monolever","description":"\u003ch3\u003e\u003cspan style=\"font-size: 10pt\"\u003eBMW R45 R65 cylinder head overhaul unleaded Twinshock \u0026 Monolever\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003e\u003cspan style=\"font-size: 14pt\"\u003e\u003cspan style=\"color: rgb(224, 62, 45)\"\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan style=\"font-size: 10pt\"\u003e\u003cstrong\u003e Please download the order form under Documents here in the item description, include it filled out with the cylinder head, and send it to our company address. \u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 10pt\"\u003eWith our BMW R45 R65 cylinder head overhaul, you receive a comprehensive technical refurbishment of your cylinder heads for Twinshock and Monolever models. The work is carried out in our own engine department and combines precise machining with decades of experience in engine building for classic BMW 2-valve engines.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 10pt\"\u003eEach cylinder head is completely disassembled, industrially cleaned, and carefully inspected. Optionally, the surface can be ceramic blasted. Old valve guides and seat rings are removed, the base bores are precisely machined, and new components are installed with low stress through controlled thermal shrinking.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 10pt\"\u003eThe valve guides are then honed to the final dimension. The valve seats are machined on our SERDI 100 with specially tuned seat contours. Finally, we check the tightness of the valves using a vacuum test. After installing the new valves and valve springs, you will receive your cylinder heads back ready for installation.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 10pt\"\u003eThe overhaul is suitable for BMW R45 and R65 of the Twinshock and Monolever series and simultaneously includes the necessary components for the unleaded conversion.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 10pt\"\u003eScope of services per cylinder head:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 10pt\"\u003eDisassembly, cleaning, and visual inspection\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 10pt\"\u003eOptional ceramic blasting\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 10pt\"\u003eRemoval of valve guides and seat rings\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 10pt\"\u003eMilling and honing of the base bores\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 10pt\"\u003eShrinking in new guides and seat rings\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 10pt\"\u003eHoning valve guides to final dimension\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 10pt\"\u003eMachining valve seats on SERDI 100\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 10pt\"\u003eVacuum leak test\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 10pt\"\u003eAssembly of valves, valve spring retainers, and valve springs\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 10pt\"\u003eParts package included in the price:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 10pt\"\u003e1 exhaust valve seat\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 10pt\"\u003e2 valve guides\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 10pt\"\u003e2 valves with 7 mm stem\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 10pt\"\u003e2 valve springs\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 10pt\"\u003eOur experience covers the entire spectrum of classic BMW boxers, from the R45 and R65 to the R80 and R100.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 10pt\"\u003eNote: Surfacing of the cylinder and valve cover sealing surfaces can be ordered additionally. We recommend machining both surfaces to avoid potential problems caused by warping.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 10pt\"\u003e\u003cstrong\u003eThe stated price is per cylinder head.\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\/\u003e\u003cbr\/\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/7Hrn72vuEdg?si=ukTVUSCab9OTzv8k\" title=\"YouTube video player\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e","brand":"Sport Evolution","offers":[{"title":"without planning","offer_id":56805983256956,"sku":"SE-20-80108-01-003S1","price":305.0,"currency_code":"EUR","in_stock":true},{"title":"nur Zylinderdichtfläche","offer_id":56805983289724,"sku":"SE-20-80108-01-003S2","price":347.5,"currency_code":"EUR","in_stock":true},{"title":"beide Dichtflächen planen","offer_id":56805983322492,"sku":"SE-20-80108-01-003S3","price":390.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0939\/2390\/1820\/files\/397A5380_12146.jpg?v=1781343680","url":"https:\/\/sport-evolution.de\/en\/products\/bmw-r45-r65-cylinder-head-overhaul-unleaded-twinshock-monolever","provider":"Sport Evolution","version":"1.0","type":"link"}