EngineEngine - assembly and disassembly
| Engine - assembly and disassembly |
Note | t
| To carry out assembly works, fasten the engine on the assembly
stand, using the Support for VW 643 or VW 643/1 -VW 313- or Rotary stand for engine and gearbox -VAS 6095-. |
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| It is necessary to carefully clean the oil ducts and to replace
the oil filter if, when servicing the engine, significant amounts
of metal particles and detached particles are found in the oil, due
to abrasion or wear resulting from seizing (for instance, from the
conrods or bearing shells). This procedure prevents any consequential
damage. |
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| Lubricate all supporting and sliding surfaces prior assembly. |
WARNING | Always replace self-locking nuts and screws subject to angular
torque |
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| 1 - | Upper cover to mechanical distributor |
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| Mark rotation direction before removal. |
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| Removal, installation and adjustment → Chapter. |
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| Replace after each removal. |
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| To loosen and tighten, immobilize the camshaft gear with
the Pin wrench -3036-. |
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| Check the fastening during installation. |
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| Check the installation position of toothed belt → Chapter. |
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| Install with Liquid sealant -D000 600 A2-. |
| 6 - | Front cover of the mechanical distribution |
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| With integrated sealing gasket. |
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| The sealing gasket must not be separated from the water pump. |
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| In case of damages and leaks, replace the entire pump together
with the sealing. |
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| Check if it turns smoothly. |
| 8 - | Toothed belt tensioning roller |
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| Toothed belt: removal, installation and adjustment → Chapter. |
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| Check installation position of toothed belt → Chapter. |
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| Check the fastening during installation. |
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| Remove and install of Poly-V belt → Chapter. |
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| Mark the spinning direction before the removal. |
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| Remove and install of Poly-V belt → Chapter. |
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| Replace after each removal. |
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| To loosen and tighten, use Wrench -3415-. |
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| Tightening continuation can be carried out in several steps. |
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| Tightening angle can be measured with a common protractor,
for example, Hazet 6690. |
| 19 - | Lower cover to the mechanical distributor |
Note |
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| Tightening sequence: first tighten the upper right screw,
then the lower right screw, and finally the left screw (front view,
in the direction the vehicle moves). |
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| Follow the oil filter installation instructions. |
| 4 - | M 8: Tighten to 20 Nm + 90°, M 10: 45 Nm |
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| Replace after each removal. |
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| Replace after each removal. |
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| Loosen fastening screws from crankcase to cylinder block,
on the pulley side (4 units), from inner side of the the crankcase. |
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| Clean sealing surface thoroughly before installation. |
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| Install with Silicone sealant for engine -D 176 404 A2 ou A3-. |
| 7 - | Oil draining plug, 30 Nm |
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| With integrated sealing ring. |
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| For Generator (Alternator) -C-, air conditioner compressor, power steering oil pump and Poly-V
belt fastening element. |
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| Not applied to the (elastic) Poly-V belt. |
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| Vehicles with air conditioning and/or power steering only. |
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| To loosen Poly-V belt, turn with 16-mm wrench. |
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| Remove and install of Poly-V belt → Chapter. |
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| For snap-in connectors. |
03 Engine
