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740 turbodiesel M46 cruise control - clutch switch bad or something else? 700 1985

posted by  zrubin on  Sat Mar 26 17:25 CST 2005
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last visit: Thu Sep 20 15:45 CST 2012
[RELATED]

The cruise control on my 1985 740 turbodiesel with M46 transmission will only stay engaged if I put my foot behind the clutch pedal and pull it towards the driver's seat. I know there's a vacuum switch on the pedal, but there's probably 2 inches of travel in the pedal itself when I pull it towards me. Is this a problem with the switch or is there some adjustment in the clutch linkage that needs tweaking or a return spring that's worn? On my gas 740T I've adjusted the clutch freeplay, but that only changes the freeplay from the resting position of the pedal to where the engagement point is, so that type of adjustment wouldn't fix this problem.

Thanks

Zack
1980 245DL M46 274k
1985 744TD M46 250k
1988 745T+ M46 202k








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    740 turbodiesel M46 cruise control - clutch switch bad or something else? 700 1985

    posted by  someone claiming to be bob on  Sun Mar 27 04:24 CST 2005 [RELATED]

    The clutch pedal is supposed to return to the same level as the brake pedal when not in use. Either a return spring at the pedal pivot or at the transmission needs to be repaired.








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      740 turbodiesel M46 cruise control - clutch switch bad or something else? 700 1985

      uid 11463's pic
      posted by  badge988 on  Sun Mar 27 13:00 CST 2005
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      None of the above, you simply need to adjust the cluthc cable down at the transmission and maybe adjust the switch resting position. There is no spring that lifts the pedal at the pivot, only the clutch itself returns the pedal to the resting position.

      Badge 988







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