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#1
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catalyctic converter
i just got a 91 honda civic si 1.6l its making a funny noise like something
is rumbleing inside the catalyctic converter. i wanted to replace the part but i noticed that the catalyctic converter only has two bolts in one side the other is welded to the pipe that leads to the muffler. i dont know what to do. |
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#2
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catalyctic converter
sin wrote:
> i just got a 91 honda civic si 1.6l its making a funny noise like something > is rumbleing inside the catalyctic converter. i wanted to replace the part > but i noticed that the catalyctic converter only has two bolts in one side > the other is welded to the pipe that leads to the muffler. i dont know what > to do. > > is there a heat shield that could be rattling? unless you need it to pass smog, i wouldnt mess with it. chances are the ceramic honeycomb inside is broken and thats whats doing the rattling. |
#3
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catalyctic converter
and as far as replacing it, you have to cut it off and either bolt on a
replacement or have it welded on. best bet it to let a muffler shop tack it on for you. KH "SoCalMike" > wrote in message ... > sin wrote: >> i just got a 91 honda civic si 1.6l its making a funny noise like >> something >> is rumbleing inside the catalyctic converter. i wanted to replace the >> part >> but i noticed that the catalyctic converter only has two bolts in one >> side >> the other is welded to the pipe that leads to the muffler. i dont know >> what >> to do. >> >> > is there a heat shield that could be rattling? > > unless you need it to pass smog, i wouldnt mess with it. chances are the > ceramic honeycomb inside is broken and thats whats doing the rattling. |
#4
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catalyctic converter
if its just the heat shield would it make it easyer to fix? and iam afraid
i dont know what a honeycomb is. can you tell me? |
#5
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catalyctic converter
On 2005-10-17, sin > wrote:
> i just got a 91 honda civic si 1.6l its making a funny noise like something > is rumbleing inside the catalyctic converter. i wanted to replace the part > but i noticed that the catalyctic converter only has two bolts in one side > the other is welded to the pipe that leads to the muffler. i dont know what > to do. Are you the original owner? Sounds like the converter might have been replaced once already. On my '87 Si hatchback, when I had my cat replaced, they just cut off the shield, cut out the cat (torched), and welded in a new one, sans shield. Took them all of about 5 mins. If this is the case, just have some muffler hack do it again. It's almost impossible to replace bad exhaust parts/tubing that's been welded in unless you can add new tubing at a point that has a good virgin tubing to clamp to. nb |
#6
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catalyctic converter
Your catalytic converter is basically a metal box with a honey comb like
ceramic inside it that when it gets hot cleans the air coming out of your exhaust. It has to get hot in order for it to clean the air so they put an extra layer of metal over it for a heat shield. The ceramic inside your cat can break and eventually plug up your exhaust. so either your outer layer of metal is just loose or your ceramic inside is broken. If the ceramic is broken then the only fix is to replace the whole cat. Symptoms of a plugged exhaust are a significant loss of power. You sound lost enough that you should take it to an exhaust shop and just let them fix it. At least you will know exactly what they are talking about though. Here are pictures and a thorough explanation: http://auto.howstuffworks.com/catalytic-converter2.htm KH "sin" > wrote in message lkaboutautos.com... > if its just the heat shield would it make it easyer to fix? and iam afraid > i dont know what a honeycomb is. can you tell me? > > |
#7
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catalyctic converter
"sin" > wrote in
lkaboutautos.com: > if its just the heat shield would it make it easyer to fix? If the heat shields are loose, you can easily tell by getting underneath and wiggling them. A big hose clamp will snug 'em down and keep them quiet. > and iam > afraid i dont know what a honeycomb is. can you tell me? > Forget that. Chances of the cat's internals being broken apart are *extremely* remote. Heat shields rust loose every minute of every hour of every day. -- TeGGeR® The Unofficial Honda/Acura FAQ www.tegger.com/hondafaq/ |
#8
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catalyctic converter
thank you all. i have learned alot from all who responded. thanks again.
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