BMW R1100 Spezifikationen PDF herunterladen (Seite 16)

After the first valve is adjusted, the second valve will then be adjusted while the first is

stabilized. To check if a valve is properly adjusted, attempt to insert the next thicker size of

feeler gauge -- it should be too big to fit. The valve clearance may change as you tighten the

lock nut. Experiment with tightening technique to maintain clearance as you tighten, and

recheck the clearances after all four valves on one side have been adjusted.

The two exhaust valves are located nearest to the exhaust pipe. Adjust exhaust = .012 in (.30

mm). Adjust intake = .006 in (.15mm). Rotate engine 360 degrees, center OT in timing hole,

and adjust the valves on the other side.

ROCKER ARM SIDEPLAY ADJUSTMENT

Mick McKinnon points out that there is one additional gap to check while the valve covers are

off. The rocker arms, which are the vertical metal pieces that contain the valve adjustment

nuts, will move up or down when pushed by hand. Measure the two gaps where the rocker

arms contact the horizontal piece at the bottom. This horizontal piece has several names,

including lower rocker arm bearing carrier (LRABC) and rocker arm end plate. This lower

rocker arm bearing carrier (LRABC) is held in place by three T45 torx screws in a triangle

pattern (on its side) and one large head bolt. The gaps should be between .05mm and .30mm.

The smaller the gap the quieter the engine. The procedure is to loosen the 3 Torx screws and,

after marking the lower head bolt, loosen it also. Snug them back up just enough to hold an

adjustment and then tap the LRABC until you have about .05mm end play (gap). Check the

gap after tightening because it may tighten up slightly as you torque the screws and bolts back

to spec. Retorque the T45 torx screws to 15 ft.lb. Retorque the head bolt to 17 ft.lbs. and

then turn the bolt an additional 180-degrees (torque it and then move the wrench through

another half circle).

Clean valve covers and reinstall; the gasket surface MUST be free of all oil film or they won't

seal. Be certain the center donut gasket is in place on the valve cover !!! Reinstall sparkplug,

plug wire and valve cover strip; alternator cover - reinstall top right Allen bolt first; timing hole

plug - be careful when reinstalling this plug that you do not push it all the way through, into the

hole. Editors Note: One trick is to stab the rubber plug in the middle with a sharp awl to hold it

in place while you carefully push the edges in with a long screwdriver.

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