Minggu, 15 Mei 2011

How to Replace a Catalytic Converter on a Toyota Tercel

How to Replace a Catalytic Converter on a Toyota Tercel

The first thing you can do to replace the catalytic converter in your Toyota Tercel is forget about the cheaper universal fit catalytic converter at the auto parts stores. Although this may seemingly save you money for the part, you're going to have to buy adapters or figure out how to make that universal fit converter fit like a direct fit converter. A direct fit converter for a Tercel will have a two-point flange on either side and will do just as its label describes: fit directly. In the long run it will save you time, money, and will work better for your Tercel since it was specifically designed for it.

Difficulty:
Challenging

Instructions

things you'll need:

  • Car lift
  • Acetylene torch
  • Striker
  • Safety glasses and cutting glasses
  • Hammer
  • Long step punch
  • Angled die grinder with sanding disk
  • Pick or awl
  • Replacement gaskets
  • Direct fit converter
  • 4 8mm Bolts, 1-1/2" long
  • 4 8mm Flat washers
  • 4 8mm Lock washers
  • 4 8mm Nuts
  • Air ratchet
  • Metric hand wrench set
    • 1

      Lift the Toyota Tercel on a car lift all the way up.

    • 2

      Put on the cutting glasses, and light the acetylene torch using a striker. Cut the bolts and nuts from the catalytic converter from the flange(s) on the converter side. This way you will not incur damage to the flanges bolted to the converter flanges. Cut the bolt heads (with the torch) or the nuts flush to the converter flange.

    • 3

      Turn the torch off, switch over to safety glasses, and knock out the bolts from the converter side of the flanges using the hammer and a long stemmed punch. If they do not punch through, you may need to relight the torch and cut into the bolt hole a little deeper.

    • 4

      Remove the old converter.

    • 5

      Pick the old gaskets off of the pipe flanges on both side using a pick or awl.

    • 6

      Clean the surface of the flat part of the pipe flanges on both sides using an angled die grinder with a sanding disk.

    • 7

      Place the new gaskets onto the small pipe outlet protruding from the pipe flanges.

    • 8

      Check the exhaust flow of the new catalytic converter. It will be stamped on the shell or shields of the converter and be easy to see. There will be an arrow pointing in the direction of the exhaust flow or an A and B marking. A would indicate towards the front of the motor, and B would indicate towards the back of the Tercel.

    • 9

      Attach the converter flanges to the pipe flanges and place the bolts into the flanges (in any direction) in this fashion: bolt head with a flat washer through the flanges, then a lock washer and nut.

    • 10

      Tighten the bolts and nuts holding one end with a wrench and tightening with an air ratchet. Tighten each bolt a little bit, switch to the next one, and continue this pattern until all four nuts and bolts have seated the flanges tight together.

    • 11

      Remove tools and lower the Tercel on the lift. Start it up, raise it up again, and check for any possible leaks coming from the flange connections. If so, tighten the bolts some more.

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