300SL (129.061) L6-3.0L (104.981) (1991)
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Shift Modulator: Adjustments
1.
Remove rubber cap from vacuum box.
2.
Pull lock plate on center of vacuum box out of locking slots until it can be turned.
3.
Lock plate can now be used to move adjusting screw in vacuum box. One complete revolution of the adjusting screw will produce a pressure
change of 0.4 bar (5.8 psi).
4.
After turning adjusting screw, push lock plate back into locking slots and install rubber cap back onto vacuum box.
5.
Measure modulating pressure again, then reconnect vacuum line.
