Checking Valves For Wear; Remachining Valve Seat; Checking And Repairing Cylinder Head; Checking Valve Guide For Wear - BMW R 1150 RT Repair Manual

Checking valves for wear

•
Clean combustion residue from valves.
•
Check valve dimensions (

Remachining valve seat

D
e
Attention:
Width (B) and diameter (D) must always be main-
tained if valve seat is machined (

Checking and repairing cylinder head

•
Remove combustion residue from combustion
chamber.
•
Check sealing face for damage/distortion, and
machine if necessary.
Milling head mating surface:
.................... max. 0.2 mm (0.008 in) metal removal

Checking valve guide for wear

•
Check valve guide bore (
11.6).
a
RS110890
11.7).
a
11.7).
a
11.29