Checking Valves For Wear; Remachining Valve Seat; Checking And Repairing Cylinder Head; Checking Valve Guide For Wear - BMW R 1100 S Repair Manual

Checking valves for wear

•
Clean combustion residue from valves.
•
Check valve dimensions.
............................................see Technical Data
a

Remachining valve seat

D
e
Caution:
Width (B) and diameter (D) must always be main-
tained if valve seat is machined.
............................................see Technical Data
a

Checking and repairing cylinder head

•
Remove combustion residues from combustion
chamber.
•
Check sealing face for damage/distortion, and
skim flat if necessary.
Skimming sealing
face: ........... max. 0.2 mm (0.008 in) metal removal

Checking valve guide for wear

•
Check valve guide bore.
............................................see Technical Data
a
11.26
RS110890