How to Change a Honda Exhaust Manifold

Written by justin moore
  • Share
  • Tweet
  • Share
  • Pin
  • Email
How to Change a Honda Exhaust Manifold
Replace your exhaust manifold. (engine image by Albert Lozano from Fotolia.com)

The exhaust manifold on a Honda is responsible for clearing the exhaust gasses from the combustion chamber. Dampness and the heating and cooling of the exhaust manifold can make the metal rust, fatigue and crack. A crack in the exhaust manifold so close to the engine will result in an extremely loud exhaust leak. Not only is this a nuisance to the driver, in most cases it is also illegal.

Skill level:
Easy

Other People Are Reading

Things you need

  • Penetrating oil
  • 7/8-inch wrench
  • Ratchet
  • Extension
  • Sockets
  • Putty knife
  • Replacement exhaust manifold
  • Replacement exhaust manifold gaskets

Show MoreHide

Instructions

  1. 1

    Apply a generous coat of penetrating oil to the nuts and bolts on the exhaust manifold and the downpipe. Let it soak in for about an hour before starting the repair.

  2. 2

    Disconnect the electrical connector for the oxygen sensor. Remove the oxygen sensor using a 7/8-inch wrench. Remove the exhaust manifold heat shield.

  3. 3

    Remove the nuts that secure the manifold to the exhaust pipe. Remove the nuts that secure the exhaust manifold to the head using a crisscross pattern, starting in the centre.

  4. 4

    Scrape any gasket material that may be left behind off the head with a putty knife.

  1. 1

    Install the new gasket onto the head. Slide the replacement exhaust manifold onto the bolts. Install the nuts snug onto the studs.

  2. 2

    Tighten the nuts on the studs starting in the centre and use a crisscross pattern while working your way to the outside nuts. Install a new gasket onto the bottom of the exhaust manifold. Install the downpipe onto the exhaust manifold and tighten the nuts.

  3. 3

    Install the heat shield. Insert the oxygen sensor into the hole and tighten it. Reconnect the electrical connector.

Tips and warnings

  • Exhaust nuts can be rusted solid to the studs. Allow the penetrating oil enough time to soak in.
  • Always use new gaskets to prevent exhaust leaks.
  • Allow the exhaust to cool completely before working on it. Exhaust parts will become extremely hot, even if the engine runs for only a short time.

Don't Miss

Filter:
  • All types
  • Articles
  • Slideshows
  • Videos
Sort:
  • Most relevant
  • Most popular
  • Most recent

No articles available

No slideshows available

No videos available

By using the eHow.co.uk site, you consent to the use of cookies. For more information, please see our Cookie policy.