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Engine cylinder head, valve gear >
< Crankshaft: disassembly and assembly
Leon Mk1
Power unit
4-cylinder engine (2-valve), mechanical stage
Enginecrankshaft group, pistons
Removing and installing sealing flanges and dual-mass flywheel
Rear sealing flange: removing and installing
Rear sealing flange: removing and installing
t
Removing
→ Anchor
t
Installing
→ Anchor
t
Tightening torques
→ Anchor
Consult the equivalence table for tools and equipment according to applicability among Seat / VW / Audi / Skoda
→ Chapter
.
Special tools and workshop equipment required
t
Torque wrench -VAG 1331-, see equivalent
→ Anchor
.
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Electric drill with plastic brush attachment
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Protective glasses
t
Sealant for joints
→ Spare parts catalogue
Removing
l
Gearbox removed.
–
Remove the dual mass flywheel
→ Chapter
.
–
Separate intermediate plate at sealing flange and fitted sleeves
-Arrows-
.
–
Extract bolts
-1... 8-
.
–
Pull off sealing flange (rear).
Installing
Note
Lie a cloth over the open part of the oil sump.
–
Remove sealant residue on cylinder block and on oil sump carefully.
–
Clean sealing surfaces; they must be free of oil and grease.
–
Cut off the tube nozzle on the front marking (diameter of the nozzle approximately. 2 mm).
–
Apply a thin bead of sealant at the edge of the joint between the cylinder block and the sump
-arrows-
.
–
Coat the lower sealing surface on the sealing flange lightly with sealant
-hatched area-
.
Note
The sealing flange must be installed within 5 minutes after applying sealant.
–
Fit onto the crankshaft, sliding the sealing flange
-2-
together with the guide sleeve
-1-
(inserted in replacement part).
–
Push the sealing flange carefully onto the dowel sleeves on the cylinder block.
–
Tighten bolts in the following sequence:
1.
Tighten the bolts
-1 … 6-
.
2.
Tighten bolts
-7-
and
-8-
The remaining installation steps are carried out in reverse sequence - note the following points:
–
Hook intermediate plate on sealing flange, and press onto dowel sleeves
-arrows-
.
–
Install the dual mass flywheel
→ Chapter
.
Tightening torques
Components:
Nm
Sealing flange to cylinder block
15
Power unit
4-cylinder engine (2-valve), mechanical stage
Enginecrankshaft group, pistons
Removing and installing sealing flanges and dual-mass flywheel
Engine cylinder head, valve gear >
< Crankshaft: disassembly and assembly