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Skoda Workshop Service and Repair Manuals

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Clutch, control > < Designation of components and transmission ratio

Fabia Mk1

General Repair Information
General Repair Information
To carry out gearbox repairs successfully and correctly, scrupulous care and cleanliness, as well as the proper tools, are essential requirements. Obviously, the generally valid basic safety rules apply to repair work.
A number of generally valid notes for individual repair operations (which are otherwise listed several times at numerous points in the workshop manual) are summarized here. They apply to this workshop manual.
Gearbox
t  When installing, ensure the dowel sleeves are correctly located between the engine and gearbox.
t  If replacing the gearbox, pour in gear oil up to lower edge of filler hole.
t  Capacity and specification → Chapter
Gaskets, seals
t  Thoroughly clean contact surfaces and apply sealant THREE BOND 1104.
t  Apply sealant evenly - not too thick.
t  Replace O-rings
t  Replace radial shaft seals.
Before installing:
   
Oil outer diameter slightly. Fill the space between the sealing lips -arrow- with grease.
After installing:
Check gear oil level, if necessary pour in up to lower edge of filler hole, specification → Chapter.
Locking elements
t  Replace circlips.
t  Do not over-tension the circlips.
t  Circlips must be positioned in the base of the groove.
  N32-0001
t  Replace roll pins. Fitting position: Slot longitudinally to power flow -arrow-.
Bolts, nuts
t  Slacken and tighten nuts or bolts for attaching covers and housings diagonally across.
t  Do not twist particularly sensitive parts - e.g. clutch pressure plates, and slacken and tighten diagonally across in stages.
t  Tightening torques apply for non-oiled nuts and bolts.
t  Always replace the self-locking nuts and bolts.
t  It is important to ensure at all bolted connections that the contact surfaces as well as the nuts and bolts are waxed only after being installed (should this be necessary).
Bearings
t  Install new tapered-roller bearing as supplied. Thus, do not oil before installing.
t  Oil needle bearing before installing.
t  When replacing tapered-roller bearings always replace all tapered-roller bearings on a same shaft together. If possible always use bearings of the same manufacturer!
t  Heat the inner races of the bearings to approx. 100°C before installing.
t  Do not exchange the outer and inner rings of bearings of the same size - bearings go in pairs.
t  Position needle bearing with the lettered side (thicker end) towards the drift pin.
Shims
t  Gauge shims at several points with a micrometer. Different tolerances allow to select the required thickness for each washer very precisely.
t  Inspect gauge shims for damage or burrs.
t  Install only shims which are in perfect condition.
Synchronizer rings
t  These are not interchangeable. If re-using, allocate synchronizer rings to the same gear.
t  Inspect for wear, and replace if necessary.
t  Oil with gear oil before installing.
Gears
t  Clean and heat on a heating plate to about 100°C before pressing on.
t  The temperature can be verified with a temperature measuring device (e.g.-V.A.G 1558-).
  V34-1515

Clutch, control > < Designation of components and transmission ratio