Had 100*F A/C which turned out to be two problems: low on refrigerant and the clutch not engaging properly. The former is decently resolved (still a few bubbles but no longer foam) so now onto the clutch.

The clutch does not engage unless the engine is goosed to 4.000R.P.M. several times then quickly disengages. Pressure switches are new and passed with flying colors. Jumped the clutch and got nothing.

Any help greatly appreciated!

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Current fleet:

1985 Mercedes-Benz 280TE - Waiting for heart surgery.

1985 Mercedes-Benz 300TDT - Rear ended 23 September 2016 and now looking for a new home.

1979 Mercedes-Benz 300TD - Parted out.

1964 Volkswgen Beetle - Vater's since September 1968 and undergoing a restoration.

1971 Volkswagen Sunroof Squareback with F.I. - in need of full restoration.

1971 Volkswagen Squareback automatic with F.I. - Vacationing with her caretaker until he is in better health.