Skoda Workshop Service and Repair Manuals

Replace Teflon gasket ring and supporting washer at injection valve   Note t  Safety precautions when working on the fuel supply system → Chapter. t  Rules of cleanliness when working on the fuel supply system → Chapter. Special tools and workshop equipment required t  Set of tools -T10133- Work procedure Replace Teflon gasket ring –  Remove injection valves → Chapter. –  Carefully clean the injection valve.

–  Carefully cut open the gasket ring with a knife as shown -arrow-. Absolutely try to avoid the contact of the knife blade with the valve body. –  Remove the old gasket ring and clean the gasket ring nut in the area of the gasket ring -arrow-. Remove the existing deposits (carbon deposits) with a wire brush.

–  Fit a new gasket ring -1- onto the assembly cone -T10133/5-. Slightly push the gasket ring with the assembly sleeve -T10133/6- (knurling points to the gasket ring -1-) as far as possible onto the assembly cone -T10133/5 -.

–  Turn the assembly sleeve -T10133/6 - around (now the knurling points away from the gasket ring), and push the gasket ring -1- up to the end onto the assembly cone -T10133/5 -. –  Now position the assembly cone -T10133/5- with the gasket ring from the front onto the injection valve. Push the gasket ring with the assembly sleeve -T10133/6- further onto the injection valve.

The gasket ring is not yet seated in its groove. –  Remove the assembly sleeve -T10133/6 - and the assembly cone -T10133/5-. –  Push the gasket ring by hand into the annular groove. –  Fit the spacer sleeve -T10133/11 - onto the valve body.

–  Now press the calibration sleeve - T10133/7- via the gasket ring up to the stop at the spacer sleeve -T10133/11-. –  Pull off again the calibration sleeve -T10133/7-.

–  Now press the calibration sleeve - T10133/8- via the gasket ring up to the stop at the spacer sleeve -T10133/11-. –  Pull off again the calibration sleeve -T10133/8-. Now the Teflon gasket ring has its correct fitting dimension. Replace supporting washer

–  Remove O-ring -3-. –  Cut open the supporting washer -2- with a small side cutter and take it off. –  Pull off the spring element at the injection valve -1- and instead push on the lock washer -T10133/12 -.

–  Mount a new supporting washer -1- on the assembly cone -T10133/13- and fit it onto the injection valve as shown. –  Push the supporting washer -1- with the calibration sleeve -T10133/14- (knurled side points to the injection valve) up to the first nut -arrow- onto the injection valve.

–  Now turn the calibration sleeve -T10133/14- around (knurled side points away from the injection valve). Push the calibration sleeve via the supporting washer -1- in -direction of arrow- up to the stop on the lock washer -T10133/12-. –  Pull off again the calibration sleeve -T10133/14-. Now the supporting washer has its correct fitting dimension.

–  Now fit a new spring element -1- for the lock washer -T10133/12 - and push a new O-ring -3- in front of the supporting washer -2-.   Note

The Teflon gasket ring -arrow- must not be oiled when installing the injection valve. –  Install injection valves → Chapter. Further installation occurs in reverse order to removal.