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Exhaust leak


9723

Active Member
Joined
Oct 22, 2008
Messages
324
Reaction score
64
Points
28
Vehicle Year
1997
Make / Model
XLT
Engine Type
2.3 (4 Cylinder)
Engine Size
2.3
Transmission
Manual
2WD / 4WD
2WD
..been hearing an exhaust leak where the manifold connects to the catalitic converter section. Took it apart and I see no decernable reason it should be leaking. No bending or warping, no corrosion to speak of.

Only two reasons I can think of:

1. It just needs to be aligned, reseated and torqued evenly.
2. The catalitic is clogged enough to force blow-by thru that fitting.

The '97 has no gasket there and the manifold is a true header (steel tubing) from the factory, and hard to find.

I'm hoping someone has been thru this and has some info....

Thanks!!
 


Rock Auto 5% Discount Code: 70D65189E6D8FF: January 5th, 2022

9723

Active Member
Joined
Oct 22, 2008
Messages
324
Reaction score
64
Points
28
Vehicle Year
1997
Make / Model
XLT
Engine Type
2.3 (4 Cylinder)
Engine Size
2.3
Transmission
Manual
2WD / 4WD
2WD
Fixed, no more leak....

I fixed it....took it out, lightly hit it with 000 steelwool, put it back in.

I was very careful to line it up snuggly and straight, then I hand tightened the two bolts to the manifold, checking to make sure they were each (on the flange) the same distance from the manifold. Then I torgued each at the same time, starting at 30 lb/ft, then 35, 40 and 45. Tightened the back to the muffler and no more exhaust leak.

I also soaked ( in liquid wrench) and put the wire brush to all the bolts.
 


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