rusty screw/nuts for muffler

Hi,
I notice that some of screws/nuts that hold muffler and pipe are rusty
and need replacement. My car is 2000 Corolla, and I am wondering what
the size of those screws/nuts are and whether they have to be
"extremely heat resistant" and whethere they can be purchased at local
auto store or store like homedepot?
Thanks.

wenm...@yahoo.com wrote:[color=blue]
> Hi,
> I notice that some of screws/nuts that hold muffler and pipe are rusty
> and need replacement. My car is 2000 Corolla, and I am wondering what
> the size of those screws/nuts are and whether they have to be
> "extremely heat resistant" and whethere they can be purchased at local
> auto store or store like homedepot?
> Thanks.[/color]

hmmm.... try cleaning them with WD 40 first?

They're most 40%~50% gone, at the other handle, will it cause flame if
using WD 40 later when I start driving?

[email]wenmang@yahoo.com[/email] wrote:[color=blue]
> They're most 40%~50% gone, at the other handle, will it cause flame if
> using WD 40 later when I start driving?[/color]

no, I doubt very seriously you'd have to worry about flame. Wow...
that far gone on a 2000?

Toyota uses a one piece exhaust on nearly all models --- so they must be the
nuts connecting it to the catalytic converter? I'd replace them with brass
or stainless steel (if OEM then they are metric threads)..

<wenmang@yahoo.com> wrote in message
news:1119975114.695116.267920@f14g2000cwb.googlegroups.com...[color=blue]
> Hi,
> I notice that some of screws/nuts that hold muffler and pipe are rusty
> and need replacement. My car is 2000 Corolla, and I am wondering what
> the size of those screws/nuts are and whether they have to be
> "extremely heat resistant" and whethere they can be purchased at local
> auto store or store like homedepot?
> Thanks.
>[/color]

<wenmang@yahoo.com> wrote in message
news:1119975114.695116.267920@f14g2000cwb.googlegroups.com...[color=blue]
> Hi,
> I notice that some of screws/nuts that hold muffler and pipe are rusty
> and need replacement. My car is 2000 Corolla, and I am wondering what
> the size of those screws/nuts are and whether they have to be
> "extremely heat resistant" and whethere they can be purchased at local
> auto store or store like homedepot?
> Thanks.
>[/color]

Buy Muffler Clamps at the auto parts store.

Frankly, unless they are broken and falling off, you are best to just leave
them alone.

Jeff Strickland wrote:[color=blue]
> <wenmang@yahoo.com> wrote in message
> news:1119975114.695116.267920@f14g2000cwb.googlegroups.com...[color=green]
> > Hi,
> > I notice that some of screws/nuts that hold muffler and pipe are rusty
> > and need replacement. My car is 2000 Corolla, and I am wondering what
> > the size of those screws/nuts are and whether they have to be
> > "extremely heat resistant" and whethere they can be purchased at local
> > auto store or store like homedepot?
> > Thanks.
> >[/color]
>
> Buy Muffler Clamps at the auto parts store.
>
> Frankly, unless they are broken and falling off, you are best to just leave
> them alone.[/color]

Jim, did your Muffler Clamp break? Is that what the problem is?

Ooops Jeff

I notice only the screws/nuts, not the clamp. When I touch screws/nuts
with my finger, some rusty stuff starts falling off. The clamp looks OK
to me. I am just wondering what the size of those screws/nuts.

<wenmang@yahoo.com> wrote in message
news:1120060533.046406.13710@g49g2000cwa.googlegroups.com...[color=blue]
>I notice only the screws/nuts, not the clamp. When I touch screws/nuts
> with my finger, some rusty stuff starts falling off. The clamp looks OK
> to me. I am just wondering what the size of those screws/nuts.
>[/color]
2 ways to get the screw and nut sizes:

1) go to a Toyota dealer and ask their parts department
2) put a wrench or socket on the nut and bolt head - it will be 8, 10, 12,
04 14 mm. Most likely 10 mm.

Nothing special about the nuts and bolts. If you want something that will
last a little longer, buy stainless steel ones.

If the old ones are that rusted, you will probably have to cut them off.
--
Ray O
correct the return address punctuation to reply

[email]wenmang@yahoo.com[/email] wrote:[color=blue]
> I notice only the screws/nuts, not the clamp. When I touch screws/nuts
> with my finger, some rusty stuff starts falling off. The clamp looks OK
> to me. I am just wondering what the size of those screws/nuts.[/color]

size of screws/nuts.

hmmm...

You sure that's not just rusty-looking grit or clay?

Ray O wrote:[color=blue]
> <wenmang@yahoo.com> wrote in message
> news:1120060533.046406.13710@g49g2000cwa.googlegroups.com...[color=green]
> >I notice only the screws/nuts, not the clamp. When I touch screws/nuts
> > with my finger, some rusty stuff starts falling off. The clamp looks OK
> > to me. I am just wondering what the size of those screws/nuts.
> >[/color]
> 2 ways to get the screw and nut sizes:
>
> 1) go to a Toyota dealer and ask their parts department
> 2) put a wrench or socket on the nut and bolt head - it will be 8, 10, 12,
> 04 14 mm. Most likely 10 mm.
>
> Nothing special about the nuts and bolts. If you want something that will
> last a little longer, buy stainless steel ones.
>
> If the old ones are that rusted, you will probably have to cut them off.[/color]

careful when applying the wrench to the nut please!

Thanks everyone.
I may ask dealer to do it later. Last time they did replaced one
screw/nut, they charged me over $30.

Learning Richard wrote:

[color=blue][color=green]
>>
>>If the old ones are that rusted, you will probably have to cut them off.[/color]
>[/color]
Heat helps. If the bolt/stud isn't too big, a propane torch will be enough.
But lately, I've been able to get some pretty rusted (but not salt rusted)
bolts off without any trouble.