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Old 04-12-2002, 03:21 PM
JimSmith JimSmith is offline
Join Date: Jul 2001
Location: Old Lyme, Connecticut
Posts: 3,596
I might have been a little unclear in my wordy dissertation. I do not think you should be repeating the 100 degree or so rotations after you seat the fasteners and complete the crushing of the gasket, if there is one, unless the manual specifically says to give the closure fasteners two 100 or so degree increments of stretch.

I think you need to draw the closure together evenly and reach a point where the fasteners are through crushing any gasket material that may be part of the joint design. The specified torque value will not be achieved if the gasket is still being compressed, and neither will the designed fastener stretch. I also do not think it is a good practice for a joint to be assembled by fully tightening the fasteners in one step. I would break the 100 degree/specified torque value into several increments that add to the specified value, and apply the torque in the fastener assembly sequence or pattern prescribed for the joint.

If there is no gasket the crushing of the gasket step does not apply. It is seat the fasteners, then apply the stretch. I would still not do it in one step though.

1986 Euro 190E 2.3-16 (291,000 miles),
1998 E300D TurboDiesel, 231,000 miles -purchased with 45,000,
1988 300E 5-speed 252,000 miles,
1983 240D 4-speed, purchased w/136,000, now with 222,000 miles.
2009 ML320CDI Bluetec, 89,000 miles

1971 220D (250,000 miles plus, sold to father-in-law),
1975 240D (245,000 miles - died of body rot),
1991 350SD (176,560 miles, weakest Benz I have owned),
1999 C230 Sport (45,400 miles),
1982 240D (321,000 miles, put to sleep)
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