Timing advance in 300 TDT Engine?

As many of you know, I just installed a remanufactured engine from Metric Motors in my 1982 300 TDT.
I think there is a problem with the timing advance. On Monday I will
talk to Mike at Metric about it, but for now, does anyone know how the timing advance works on these engines? I think there is a centrifugal based timing advance connected to the camshaft. Is that right?
Is there anything related to the vacuum system that advances or retards the timing?
Thanks.
Paul
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There's no timing adjustment of the camshaft.
There IS a an injection timing device for the injection pump. The timing chain turns an intermediate sprocket which drives both the vacuum pump and the injection pump. The engine's vacuum pump is mounted on the front side of that device - you'd see the timing advance if the vacuum pump were removed - and the injection pump to the rear. The vacuum pump is indifferent to being advanced or not - it doesn't matter at all because the vacuum pump is simply a supply pump for the car's power brake and other vacuum needs. A diesel doesn't need or use vacuum (other than to actuate its emission controls).
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