timing marks 2.0 ecotec

[hoob]

hello i just wonder what marks to use on the cam pully as there two marks on both of them.This is a p reg astra 2.0 16v ecotec???:)

[Clean 2.0 nova]

If you look closely on each of the marks they have 'exhaust' or 'intake' written under them. So for the exhaust cam (RHS looking at timing belt) use the exhaust marking and for the LHS cam sprocket use the intake marking. The reason why both have both set of markings is it saved vauxhall manufacturing two different pulley's.