sehaare
Well-Known Member
- Joined
- October 25, 2008
- Messages
- 433
- Reaction score
- 134
- City, State
- Chicagoland, IL
- Year, Model & Trim Level
- 98XLT 4WD SOHC,94XLT gone
SOHC
Ok, so even though I had soaked it overnight with kroil, the front passenger side (right) O2 sensor stripped out the bung when it broke loose.
So now I'm trying to drop the passenger side exhaust to try and tap the bung and to replace the other two O2 sensors in the sections of pipe connected to it. That section of exhaust piping is also connected to the section of piping that connects to the outlet of the drivers side Catalytic convert. So I need break the connection to the driver's side converter as well(everyone confused now?).
Everything was going relatively good until I got to that outlet flange on the driverside cat. The fasteners are so rusted I can't tell how they come apart. It looks like the head of the bolt has been welded to the flange. but on the other end I can't see any threads.
Has anyone broken this flange before? What type of fasteners are they? Did you have to grind out the old bolts? I'm not sure that I have room enough to grind them?
Ok, so even though I had soaked it overnight with kroil, the front passenger side (right) O2 sensor stripped out the bung when it broke loose.
So now I'm trying to drop the passenger side exhaust to try and tap the bung and to replace the other two O2 sensors in the sections of pipe connected to it. That section of exhaust piping is also connected to the section of piping that connects to the outlet of the drivers side Catalytic convert. So I need break the connection to the driver's side converter as well(everyone confused now?).
Everything was going relatively good until I got to that outlet flange on the driverside cat. The fasteners are so rusted I can't tell how they come apart. It looks like the head of the bolt has been welded to the flange. but on the other end I can't see any threads.
Has anyone broken this flange before? What type of fasteners are they? Did you have to grind out the old bolts? I'm not sure that I have room enough to grind them?