Chevrolet Full-size Cars 1968-1978 Repair Guide

Crossover Pipe

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REMOVAL & INSTALLATION



  1. Raise and support the vehicle safely.
  2.  
  3. Remove the exhaust pipe-to-exhaust manifolds nuts.
  4.  

The left side has an extension and packing; the right-hand side has a heat riser valve assembly.

  1. Loosen the catalytic converter-to-transmission bracket.
  2.  
  3. Remove the crossover-to-catalytic converter clamp and the pipe from the converter.
  4.  

Check and lubricate the heat riser valve to make sure that it is operating properly.

  1. To install, add sealer to the connecting surfaces, assemble the system, check the clearances and tighten all the attachments.
  2.  

 
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