Zeroing gauge

Zeroing gauge

Turn crankshaft against direction of rotation until pump distributor piston reaches BDC, which can be checked on gauge.

Zero the gauge in this position.

Check pump advance

Turn crankshaft in direction of rotation until piston no. 1 is on TDC. To do this, check reference marks on crankshaft pulley (A) and camshaft pulley (B).

Under these conditions, pump distributor piston must have completed a stroke of 0.93 ± 0.05 mm.

Adjusting pump advance

If these values are not found (0.93 ± 0.05 mm) then:

• loosen the two screws retaining pump from pump mount end (1);
• loosen the third pump retaining screw from timing end (2);
• loosen the screw retaining pump to rear mount (3);