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Piston and connecting rod: disassembly and assembly > < Assembly diagram

Leon Mk1

Aluminium engine block
   
Aluminium engine block
  Caution
Do not remove the crankshaft. Just loosening the crankshaft bearing cap bolts deforms the crankshaft bearings.
These deformations reduce the play in the bearings, and if the half bearings are not replaced damage may result to the bearings due to incorrect play.
If the cap bolts have been loosened the complete engine block with crankshaft must be replaced.
Crankshaft bearing play cannot be measured with equipment available in the shop.
  Note!
Clutch repairs: → 5-speed manual gearbox 085; Rep. Gr.30
1 - 10 Nm
2 - Air intake line
q   Clean the filter if dirty
3 - Aluminium engine block
q   Piston and connecting rod: disassembly and assembly → Chapter
4 - Knock sensor -G61-
5 - 20 Nm
q   The tightening torque affects the functioning of the knock sensor
6 - 60 Nm + 1/4 turn (90o)
q   Replace
q   Retightening may be done in several steps
q   The retightening angle may be measured with protractor -T20030-
7 - Engine flywheel
q   To remove and fit immobilise it with countersupport -T20075A-
8 - 12 Nm
q   Replace
9 - Sealing flange with sender rotor and ring gasket
q   Replace complete unit only with seal, gasket and sender rotor
q   Remove and fit the sealing flange → Chapter
10 - Gasket
q   Replace
11 - Oil pump
q   Always replace the unit
q   When fitting, bear in mind the crankshaft drive component, → Item
q   It must fit over the adjustment pins
q   Removing and fitting → Chapter
12 - Seal
q   Replace → Chapter
13 - Drive component
q   Oil before fitting the oil pump

   

Piston and connecting rod: disassembly and assembly > < Assembly diagram