1993 Mazda B2200 90K miles Exhaust system question

Tiny
MJCUNNINGHAM
  • MEMBER
  • 1993 MAZDA TRUCK
The header pipe on this vehicle is cracked and needs to be repaired or replaced. I have removed the header pipe. In the opening of the exhaust manifold that the header pipe attaches to, there remained a piece of honeycombed lightweight material, loose and rattling around. I'm curious to know what that is and if it needs to replaced prior to replacing the header pipe.
Wednesday, November 22nd, 2006 AT 12:32 PM

2 Replies

Tiny
MWHITNEY
  • MEMBER
  • 63 POSTS
Sound like the cat. Has come apart on you. Is there a cat. Before thepart you removed?
Was this
answer
helpful?
Yes
No
Tuesday, December 12th, 2006 AT 9:18 AM
Tiny
MJCUNNINGHAM
  • MEMBER
  • 3 POSTS
According to Mazda service techs and parts personnel, there is no cat that goes between the exhaust manifold and the header pipe on the 1993 model year B2200. Neither is there a replaceable element that is fitted inside the exhaust manifold. It's a complete mystery to them. So I've decided to have the pipe welded up so I can re-install it along with new gaskets and hardware and have the exhaust gases analyzed to see if there are any other steps I need to take.

Thanks!
Was this
answer
helpful?
Yes
No
Tuesday, December 12th, 2006 AT 10:17 AM

Please login or register to post a reply.

Related Exhaust Manifold Content

How to Replace Exhaust Manifold Gasket
VIDEO
How to Replace Exhaust Manifold Gasket
Instructional repair video
Exhaust Manifold Gasket Replacement
GUIDE
Exhaust Manifold Gasket Replacement
Removing and reinstalling an exhaust manifold and gasket is a critical task in automotive maintenance. This guide will take you through the step-by-step process, ensuring a...