RE: 1988 R100RT - Is it advisable to relpace one rocker arm ( remove 2 o'clock and 4 o'clock head nuts) at a time?

RE: 1988 R100RT - Is it advisable to replace one rocker arm (remove 2 o'clock and 4 o'clock head nuts) at a time?

I just stumbled across this post from 2 weeks ago. This response is my opinion only. Many owners like to re-torque the head bolts from time to time, including the nuts a 6 and 12 o'clock which are not located under the rocker cover. That requires all the nuts to be loosend . If I had 1 messed up rocker arm, I would be tempted to change just that one part. However, if you are changing both, just get it over with. 25 ft/lb is the generally accepted torque value. I would arrive at the final torque in 3 steps. (say like 9,18,25) Be aware that the long studs can fail where they are threaded in to the motor casting. I experienced that failure on the left side of a 1988 R100RS I used to own.Â
former Airmarshal, IL.

Hello Richard,
Â
i am new this community, i have a 1988 bmw r100rt which i got couple of months back.. were you able to replace the rocker arms? Did you replace both? I have some questions if you dont mind

My take on this is that it all depends. Â What is the reason to replace? Â What do the others look like? Â As long as the valves are adjusted properly there should be no problem.
As for removing the nuts, no Problems there. Â These are not one time torque and throw out bolts. Â They are OK to loosen and retorque. Â I would loosen the two remaining head nuts a half turn and tighten all of the six in the proper pattern to proper setting. Â St.
Beware! I do not suffer fools gladly! St.
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