FUEL PUMP DISPLACEMENT vaux/isuzu

[pdmotors]

Being some time since i had such a chronic attempt by an amateur to sort his own engine out. I have recently taken on a 94m vw astra 1.7td (isuzu low blow). I am wanting to re-set the pump timing as it has been messed around with previously and is smoking. Does anyone know the correct displacement at TDC please.
Thanx in advance, Paul.