Exhaust leaking - Toyota Nation Forum : Toyota Car and Truck Forums
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#1 Old 11-21-2012, 10:32 AM
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Exhaust leaking

Anyone have any tips for doing the rear manifold on the 2vz?

Mine is leaking and its loud as hell. Id rather not go to an exhaust shop for this one but i might have to.

1990 Camry LE 2VZ-FE Auto 310,000 miles
1991 Camry DX 2VZ-FE 5-Speed 110,000 miles
2011 Civic EX R18A1 Auto 40,000 miles
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#2 Old 11-21-2012, 03:31 PM
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Where is it leaking? Between the manifold and the head?

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#3 Old 11-23-2012, 08:39 AM
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thats one of my problems, i cant tell if it is from the mating surface or the manifold itself

1990 Camry LE 2VZ-FE Auto 310,000 miles
1991 Camry DX 2VZ-FE 5-Speed 110,000 miles
2011 Civic EX R18A1 Auto 40,000 miles
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#4 Old 11-25-2012, 11:43 PM
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bumping this due to finding a big leak way farther down the pipe than i thought.

i need help with this one. im budgeting and this is pretty bad rust :

http://www.youtube.com/watch?v=HRNu_...ature=youtu.be

1990 Camry LE 2VZ-FE Auto 310,000 miles
1991 Camry DX 2VZ-FE 5-Speed 110,000 miles
2011 Civic EX R18A1 Auto 40,000 miles
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#5 Old 11-26-2012, 01:14 AM
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You might just need new gaskets, the cat is usually the last thing to go in the exhaust system. If you can, torch the bolts until they are red hot, remove and replace them along with the both gaskets. Downside, if things are too rusted up you could end up with a bigger problem on your hands.

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#6 Old 11-26-2012, 11:27 AM
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A cat that rusty may have failed internally- especially with 300k miles on the engine. Cat in my '91 was failed at ~270k miles. Removed the insides and never looked back.

If you need to smog it where you live, pull the cat and inspect it. It'll be fairly easy to tell if it has failed- if the leading face of it has a bunch of even square holes in it you're good... If some of the holes are plugged, it's no good. You can also look through it at a light, as they sometimes slag themselves in the middle (my '91 did this) and you can't tell they've failed looking at the leading face.

Hit those bolts with some PB Blaster, let them soak for a day or so. Hit them with some heat. Attack them with vise grips. You may need to cut into them with a hacksaw or a sawzall, then split them with a hammer and a cold chisel.

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#7 Old 11-26-2012, 04:22 PM
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yea thats exactly what i am thinking. now heres some food for thought: the resonator pipe is the really rusted flange, the newer still defineable bolts are from the flex pipe. The resonator has a welded tag that says TOYOTA on it. so the cat-muffler pipe is still original. Makes me wonder, if both the cat and resonator are rusted equally as bad, that this cat is 100 percent original.

1990 Camry LE 2VZ-FE Auto 310,000 miles
1991 Camry DX 2VZ-FE 5-Speed 110,000 miles
2011 Civic EX R18A1 Auto 40,000 miles
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