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| Unscrew the fixing nut of the fuel return-flow line on the intake manifold, open the spring strap clamp -arrow- and remove the cable from the fuel distributor. |
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| Remove the complete fuel return-flow line and place it down in front of the intake manifold. |
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| Clean the pencil type glow plug channel in the cylinder head. No dirt must get into the cylinder. |
When cleaning, for example: |
WARNING Wear protective gloves and protective googles when working with grease remover! |
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1.
| Suction off heavy dirt using a vacuum cleaner. |
2.
| Spray the pencil type glow plug channel using a brake cleaner or a suitable cleaner, let it take effect for a short period of time and blow out with compressed air. |
3.
| Then clean the pencil type glow plug channel with a cloth which is wetted with oil. |
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