Re: oilheads-digest V3 #48

[Mick <bmwmick@xxxxxxxxxxx>]

At 07:11 AM 4/4/2006 -0400, Eckhard Grohe wrote:
>Tom:
>
>Though I am sure what you did was summarize the BMW method of 2 x 90 
>degrees  as 180 degrees I have always interpreted it as a primary 
>tightening to 20 Nm  and then tighten by a 90 degree "turn of the nut" 
>according to the prescribed pattern and then a second  tightening by 
>another 90 degrees in the prescribed pattern.
>
>Eckhard
>
>
>>installed, and the nuts are tightened to the specified base torque,  then 
>>tightened 180: per BMW specs.
>>Tom Cutter
>>Yardley,  PA
>>http://www.RubberChickenRacingGarage.com

Eckhard,
   On initial assembly, the 90 + 90 procedure is used.  At the 600 mile 
service, the
20Nm + 180 degree procedure is used.  Both procedures specify "lightly 
oiled nuts".
Tom is correct.

Mick
Tucson

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