BMW R45 R65 cylinder head overhaul unleaded Twinshock & Monolever
Important: 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.
With 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.
Each 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.
The 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.
The overhaul is suitable for BMW R45 and R65 of the Twinshock and Monolever series and simultaneously includes the necessary components for the unleaded conversion.
Scope of services per cylinder head:
Disassembly, cleaning, and visual inspection
Optional ceramic blasting
Removal of valve guides and seat rings
Milling and honing of the base bores
Shrinking in new guides and seat rings
Honing valve guides to final dimension
Machining valve seats on SERDI 100
Vacuum leak test
Assembly of valves, valve spring retainers, and valve springs
Parts package included in the price:
1 exhaust valve seat
2 valve guides
2 valves with 7 mm stem
2 valve springs
Our experience covers the entire spectrum of classic BMW boxers, from the R45 and R65 to the R80 and R100.
Note: 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.
The stated price is per cylinder head.
We collect throughout Germany
You want to have your motorcycle customized, but don't know how to get it to us? Then let us take care of it for you.
We pick up your motorcycle throughout Germany for 329,-€.
You want to have your engine or your transmission overhauled or performance increased by us? We are happy to do that for you too. We pick up your engine and/or your transmission throughout Germany for 219,-€.
Bestellung über Internet einfach, dann
Zylinderköpfe eingeschickt und nach knapp 4 Wochen waren diese wieder bei mir.
Sehr gute Qualität der Überholung, so gut wie neu.
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Danke an Firma Franzen