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Cleaning 1985-1988 Volvo 740 Throttle Body

Introdução

This manual provides instructions on how to clean the tube and butterfly valve of the throttle body as well as clean and protect the electrical contacts

O que você precisa

  1. Cleaning 1985-1988 Volvo 740 Throttle Body, 1985-1988 Volvo 740 Preparing Car For Work: passo 1, imagem 1 %32 Cleaning 1985-1988 Volvo 740 Throttle Body, 1985-1988 Volvo 740 Preparing Car For Work: passo 1, imagem 2 %32

    • Firstly Disconnect battery

    • Always take the negative terminal off first.

    • '''General Tip After disconnecting the battery leave the car for about 10 mins , This lets any residual energy left in the electrical system to dissapate. It is good practise whatever the job

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  2. Cleaning 1985-1988 Volvo 740 Throttle Body, Removing Throttle Body: passo 2, imagem 1 %32

    • Locate throttle body on right side of engine, it is between the intake tube and intake manifold.

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  3. Cleaning 1985-1988 Volvo 740 Throttle Body: passo 3, imagem 1 %32

    • Locate throttle linkage cable assembly.

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  4. Cleaning 1985-1988 Volvo 740 Throttle Body: passo 4, imagem 1 %32 Cleaning 1985-1988 Volvo 740 Throttle Body: passo 4, imagem 2 %32

    • Twist the assembly clockwise.

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  5. Cleaning 1985-1988 Volvo 740 Throttle Body: passo 5, imagem 1 %32

    • Slide both slackened cables off assembly’s guides.

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  6. Cleaning 1985-1988 Volvo 740 Throttle Body: passo 6, imagem 1 %32 Cleaning 1985-1988 Volvo 740 Throttle Body: passo 6, imagem 2 %32

    • Locate the two hoses on the top of the throttle body.

    • Gently lift the hoses off.

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  8. Cleaning 1985-1988 Volvo 740 Throttle Body: passo 7, imagem 1 %32

    • Use a flat head screwdriver to loosen the hose clamp attaching the intake tube to the throttle body.

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  9. Cleaning 1985-1988 Volvo 740 Throttle Body: passo 8, imagem 1 %32

    • Remove the intake tube from the throttle body.

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  10. Cleaning 1985-1988 Volvo 740 Throttle Body: passo 9, imagem 1 %32

    • Locate wiring clip on the underside of the throttle body.

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  11. Cleaning 1985-1988 Volvo 740 Throttle Body: passo 10, imagem 1 %32 Cleaning 1985-1988 Volvo 740 Throttle Body: passo 10, imagem 2 %32

    • Press down on the locking mechanism before gently removing the wiring clip.

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  12. Cleaning 1985-1988 Volvo 740 Throttle Body: passo 11, imagem 1 %32 Cleaning 1985-1988 Volvo 740 Throttle Body: passo 11, imagem 2 %32 Cleaning 1985-1988 Volvo 740 Throttle Body: passo 11, imagem 3 %32

    • Locate throttle linkage arm.

    • Open the locking clip with a flat head screwdriver.

    • Pry off the linkage arm with a flat head screwdriver.

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  13. Cleaning 1985-1988 Volvo 740 Throttle Body: passo 12, imagem 1 %32 Cleaning 1985-1988 Volvo 740 Throttle Body: passo 12, imagem 2 %32 Cleaning 1985-1988 Volvo 740 Throttle Body: passo 12, imagem 3 %32

    • Locate the three 13mm nuts attaching the throttle body to the intake manifold.

    • Remove nuts with a 13mm crescent wrench.

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  14. Cleaning 1985-1988 Volvo 740 Throttle Body: passo 13, imagem 1 %32

    • Lift the throttle body off of the intake manifold.

    • The manifold is now out of the engine bay and ready for cleaning or adjustment.

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  15. Cleaning 1985-1988 Volvo 740 Throttle Body, Cleaning 1985-1988 Volvo 740 Throttle Body: passo 14, imagem 1 %32 Cleaning 1985-1988 Volvo 740 Throttle Body, Cleaning 1985-1988 Volvo 740 Throttle Body: passo 14, imagem 2 %32

    • Cover the electrical contacts with a shop towel to prevent throttle body cleaner from inadvertently spilling over.

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  16. Cleaning 1985-1988 Volvo 740 Throttle Body: passo 15, imagem 1 %32

    • Liberally apply throttle body cleaner to the inside of throttle body and butterfly valve.

    • Use a shop towel sprayed with cleaner to wipe off thick grime if severely dirtied.

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  17. Cleaning 1985-1988 Volvo 740 Throttle Body: passo 16, imagem 1 %32 Cleaning 1985-1988 Volvo 740 Throttle Body: passo 16, imagem 2 %32

    • Spray electrical cleaner on the metal contacts to blast away particles in the bracket.

    • Spray off the wiring clip that attaches to the throttle body inside the engine bay.

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  18. Cleaning 1985-1988 Volvo 740 Throttle Body: passo 17, imagem 1 %32

    • Apply a small amount of dielectric grease to the metal contacts to prevent corrosion.

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Conclusão

To reinstall the throttle body after cleaning follow reverse directions for prerequisite guide #2

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Raymond

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Cal Poly, Team 3-28, Regan Fall 2010 Membro de Cal Poly, Team 3-28, Regan Fall 2010

CPSU-REGAN-F10S3G28

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