This car does not have the rapid heat glow plugs that are used today. You have to hold the knob on the dash in the first position until the indicator glows red inside- this indicates the GP's are up to temperature. This could take as long as a minute.

There's a neat Bosch "quick glow" system that's available for these older models that works just GREAT!

Fluctuating idle RPM can be caused by sloppy throttle shaft at the intake butterfly, or sloppy shaft in the rear housing of the injection pump. Both need to have very minimal to no up and down play- some axial play is OK.

Replacing those with good tight ones makes all the difference in these old Diesels.

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