SEAT Workshop Service and Repair Manuals

Turbocharger pressure capsule: adjusting Consult the equivalence table for tools and equipment according to applicability among Seat / VW / Audi / Skoda → Chapter. Turbocharger removed

Special tools and workshop equipment required

t	Universal dial gauge support -VW 387-, see equivalent → Anchor

t	Manual vacuum pump -VAS 6213-, see equivalent → Anchor

t	Pressure limiting valve -VAS 6342-

t	Turbocharger test equipment -V.A.G 1397A-

t	Gauge (4 element set) -VAS 6341-

t	Torque wrenches -V.A.G 1783-

t  Pin tool e/c 10 -V.A.G 1783/1-, see equivalent → Anchor Adjusting   Note t  The pressure capsule must only be adjusted if the rod was removed. t  The adjustment must be carried out with the turbocharger disassembled.

–  Detach the hose -arrow- of the pressure capsule from the turbocharger. –  Remove the clip located at the top of the turbocharger rod.

–  Loosen the locknut -2-.

–  Pre-adjust the bypass plate -1- with the pressure capsule rod -arrow-, ensuring that it is still possible to turn the bypass plate by hand. –  Tighten the locknut by hand.

–  Connect the manual vacuum pump -VAS 6213- and the turbocharger tester -V.A.G 1397A- to coupling II and the pressure regulating valve -VAS 6342-, as shown in the figure. –  Attach the pressure regulating valve -VAS 6342- to the lever -1-.

–  Move the ring -1- of the manual vacuum pump -VAS 6213- to position -B- for “pressure”. –  Activate the turbocharger tester -V.A.G 1397A- and move the sliding switch to position II.

–  Attach the universal dial gauge support -VW 387- to the turbocharger -arrow-.   Note The figures in mm refer to the value checked (including pre-tension of 1 mm). –  Attach the dial gauge -VAS 6341/1- with the extension 30 mm -VAS 6341/3- and the flat button -VAS 6341/4- to the universal dial gauge support -VW 387-. –  Set the dial gauge -VAS 6341/1- to a pretension of 1 mm with a pressure of 0 bar. –  Position the indicator of the dial gauge -VAS 6341/1- at 0. –  Check gently whether the dial gauge operates. –  Operate the manual vacuum pump -VAS 6213- until the turbocharger tester -V.A.G 1397A- displays 350 +/- 5 mbar. –  The dial gauge must display between 4.1 and 4.3 mm. If not, turn the pressure capsule rod until the specified value is displayed. –  Tighten the locknut by hand. –  Repeat measurement procedure. –  Lower the pressure to 0 mbar with the pressure regulating valve -VAS 6342-. –  Set the dial gauge -VAS 6341/1- to 0.   Note The subsequent measurements must be carried out in order. The pressure must not drop to 0 during these operations. –  Operate the manual vacuum pump -VAS 6213- until the turbocharger tester -V.A.G 1397A- displays 350 +/- 5 mbar. –  Note down the value displayed by the dial gauge -VAS 6341/1-. –  Operate the manual vacuum pump -VAS 6213- until the turbocharger tester -V.A.G 1397A- displays between 650 and 700 mbar. –  Lower the pressure to 350 +/- 5 mbar with the pressure regulating valve -VAS 6342-. –  Note down the value displayed by the dial gauge -VAS 6341/1-. –  Add the values 1 and 2, and divide the result by 2. –  The result (average value) must be 5 +/- 0.25 mm. –  If the result (average value) is not 5 +/- 0.25 mm, correct the adjustment, tighten the locknut by hand and repeat the measurement. –  If the result (average value) is 5 +/- 0.25 mm, tighten the locknut to 9 Nm and secure it with sealing paint.

–  Secure the clip -1-with the pressure capsule rod.