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Watery Exhaust by hoseppy
Started on: 08-17-2014 06:20 PM
Replies: 22 (524 views)
Last post by: hoseppy on 08-21-2014 09:44 PM
hoseppy
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Report this Post08-17-2014 06:20 PM Click Here to See the Profile for hoseppyClick Here to Email hoseppySend a Private Message to hoseppyEdit/Delete MessageReply w/QuoteDirect Link to This Post
My son (15) and I are new to the Fiero world. We had let it sit for just a few weeks and had had some rain and went out to start it and let it run for a bit. We try to take it out at least 1x per week, he's learning to drive the 5sp. Anyway, we started it and had lots (2 cups maybe) of rust colored water leaked down below, felt like water, did not smell of anti freeze. Coolant level is fine and has remainded steady (we replaced the radiator and coolant shortly after we got it, 2 mos ago) It looks like it came from the muffler (which has what looks to be a small hole drilled in it, not a broken rusted out looking hole). It has steamed some when we've started it after rain before, kinda figure it was condisation maybe the way the tips tilt up its getting more in that way. Is there a place to look for rain water getting into the system? Or anything else we should look for?

The exhaust is rusty, looks original, will probably have to be replaced.

Thanks y'all

H

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jaskispyder
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Report this Post08-17-2014 06:32 PM Click Here to See the Profile for jaskispyderSend a Private Message to jaskispyderEdit/Delete MessageReply w/QuoteDirect Link to This Post
sounds about normal. OEM exhaust is stainless, fyi
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Patrick
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Report this Post08-17-2014 06:36 PM Click Here to See the Profile for PatrickClick Here to Email PatrickSend a Private Message to PatrickEdit/Delete MessageReply w/QuoteDirect Link to This Post
 
quote
Originally posted by hoseppy:

The exhaust is rusty, looks original, will probably have to be replaced.


The original exhaust system is stainless steel. Unless it's damaged and/or leaking, leave it alone. Rainwater/condensation is not going to hurt it. The original cat may need replacing by now though.

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hoseppy
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Report this Post08-17-2014 06:45 PM Click Here to See the Profile for hoseppyClick Here to Email hoseppySend a Private Message to hoseppyEdit/Delete MessageReply w/QuoteDirect Link to This Post
Thanks guys. So should there be a hole in the muffler?

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Patrick
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Report this Post08-17-2014 06:49 PM Click Here to See the Profile for PatrickClick Here to Email PatrickSend a Private Message to PatrickEdit/Delete MessageReply w/QuoteDirect Link to This Post

Yes.
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tshark
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Report this Post08-17-2014 11:52 PM Click Here to See the Profile for tsharkSend a Private Message to tsharkEdit/Delete MessageReply w/QuoteDirect Link to This Post
...

[This message has been edited by tshark (edited 09-08-2018).]

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mitchjl22
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Report this Post08-18-2014 12:16 AM Click Here to See the Profile for mitchjl22Click Here to Email mitchjl22Send a Private Message to mitchjl22Edit/Delete MessageReply w/QuoteDirect Link to This Post
 
quote
Originally posted by hoseppy:

Thanks guys. So should there be a hole in the muffler?



No... There should not be a hole in the muffler. The only holes are exhaust gas in, and dual exhaust out. No other holes. Stainless steel can and does rust. I lived on a boat for 4 years, trust me.

-Mitch

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Patrick
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Report this Post08-18-2014 12:55 AM Click Here to See the Profile for PatrickClick Here to Email PatrickSend a Private Message to PatrickEdit/Delete MessageReply w/QuoteDirect Link to This Post
 
quote
Originally posted by mitchjl22:


No... There should not be a hole in the muffler. The only holes are exhaust gas in, and dual exhaust out. No other holes. Stainless steel can and does rust. I lived on a boat for 4 years, trust me.


Sorry Mitch, we can now no longer trust you.

Every Fiero I've ever had (seven of them), and every Fiero I've ever looked at (plenty) has had a small hole from the factory on the side of the muffler at the bottom. This is to allow condensation to drain out.
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jaskispyder
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Report this Post08-18-2014 07:57 AM Click Here to See the Profile for jaskispyderSend a Private Message to jaskispyderEdit/Delete MessageReply w/QuoteDirect Link to This Post
 
quote
Originally posted by mitchjl22:


No... There should not be a hole in the muffler. The only holes are exhaust gas in, and dual exhaust out. No other holes. Stainless steel can and does rust. I lived on a boat for 4 years, trust me.

-Mitch



Yes, there are small holes in muffler, to let water out. Look at the ends of an OEM muffler.

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tshark
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Report this Post08-18-2014 08:18 PM Click Here to See the Profile for tsharkSend a Private Message to tsharkEdit/Delete MessageReply w/QuoteDirect Link to This Post
...

[This message has been edited by tshark (edited 09-08-2018).]

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WICKEDWILDFIERO
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Report this Post08-18-2014 09:56 PM Click Here to See the Profile for WICKEDWILDFIEROSend a Private Message to WICKEDWILDFIEROEdit/Delete MessageReply w/QuoteDirect Link to This Post
Welcome to the forum.
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Report this Post08-18-2014 10:07 PM Click Here to See the Profile for DKcustomsSend a Private Message to DKcustomsEdit/Delete MessageReply w/QuoteDirect Link to This Post
I would bet that 99% of cars from the factory have holes in at least one spot in the exhaust.

It provides drainage for that exact reason, whether it be from rain or washing the car or condensation, the holes let the water escape so that the water does not sit and rot the exhaust from the inside out.
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benoitmalenfant
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Report this Post08-19-2014 01:54 PM Click Here to See the Profile for benoitmalenfantSend a Private Message to benoitmalenfantEdit/Delete MessageReply w/QuoteDirect Link to This Post
To the OP:

I get that exact same rusty water coming out of my 87 after rain. My exhaust isn't original and is rusted, so it's normal.

The small whole in the muffler is also normal, my 88 has it as well.

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Report this Post08-19-2014 04:12 PM Click Here to See the Profile for CsjagClick Here to Email CsjagSend a Private Message to CsjagEdit/Delete MessageReply w/QuoteDirect Link to This Post
Welcome to the forum, glad to see a young person learn to drive a manual transmission.
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mitchjl22
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Report this Post08-19-2014 08:11 PM Click Here to See the Profile for mitchjl22Click Here to Email mitchjl22Send a Private Message to mitchjl22Edit/Delete MessageReply w/QuoteDirect Link to This Post
All i meant was this is not normal



This is...

[This message has been edited by mitchjl22 (edited 08-19-2014).]

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hoseppy
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Report this Post08-19-2014 09:42 PM Click Here to See the Profile for hoseppyClick Here to Email hoseppySend a Private Message to hoseppyEdit/Delete MessageReply w/QuoteDirect Link to This Post
Thanks to all, I am a little concerned about the rust though.

H



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2.5
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Report this Post08-20-2014 09:31 AM Click Here to See the Profile for 2.5Send a Private Message to 2.5Edit/Delete MessageReply w/QuoteDirect Link to This Post
 
quote
Originally posted by hoseppy:




That hole should not be there, that appears to be a rust hole or a hole some previous owner drilled, the factory hole is smaller and is on the end like mitchjl22's second picture, not the side.

[This message has been edited by 2.5 (edited 08-20-2014).]

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Patrick
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Report this Post08-20-2014 02:32 PM Click Here to See the Profile for PatrickClick Here to Email PatrickSend a Private Message to PatrickEdit/Delete MessageReply w/QuoteDirect Link to This Post
 
quote
Originally posted by hoseppy:

Thanks to all, I am a little concerned about the rust though.


Judging from your pictures, I'd be more concerned about your car's wheel alignment/camber/suspension. Those tires are shot.

It looks like that hole in the center of your muffler has been drilled (for added condensation drainage purposes). Unless the metal around the hole is weak (or the muffler sounds bad), I wouldn't worry about the surface rust.
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Report this Post08-20-2014 03:07 PM Click Here to See the Profile for rogergarrisonClick Here to Email rogergarrisonSend a Private Message to rogergarrisonEdit/Delete MessageReply w/QuoteDirect Link to This Post
I know at least some of my cars have a drain hole in the muffler. The motorhome does it one better....it has a fitting with a socket hex plug in the bottom of it. The manual recommends opening it several times a year with the engine running.
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Report this Post08-20-2014 05:29 PM Click Here to See the Profile for 2.5Send a Private Message to 2.5Edit/Delete MessageReply w/QuoteDirect Link to This Post
Regarding condensation and exhaust rust, couldnt one wait til the exhaust cools off the start it and only let it run maybe 10 seconds, with a rev, and shut it off, thus blowing out the condensation and not getting the pipe warm enough to create more? Something maybe to be done before storage.
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Patrick
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Report this Post08-20-2014 06:00 PM Click Here to See the Profile for PatrickClick Here to Email PatrickSend a Private Message to PatrickEdit/Delete MessageReply w/QuoteDirect Link to This Post
 
quote
Originally posted by 2.5:

...couldnt one wait til the exhaust cools off the start it and only let it run maybe 10 seconds, with a rev, and shut it off, thus blowing out the condensation


Condensation pools inside the muffler. The drilled holes are supposed to be as close as possible to where this pooling takes place to allow for drainage. IMO, water that's pooled elsewhere is not all going to be blown out of anywhere within ten seconds.

A bit of water sitting in a stainless steel muffler isn't going to be a huge issue.
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Report this Post08-20-2014 06:55 PM Click Here to See the Profile for rogergarrisonClick Here to Email rogergarrisonSend a Private Message to rogergarrisonEdit/Delete MessageReply w/QuoteDirect Link to This Post
I wouldnt worry about the surface rust on pipes. I put a new exhaust system on the generator of the motorhome last month. It already looks that bad and I only put a few hundred miles on it. I think the mufflers stainless though...it looks fine. All the exhaust pipes on new cars sitting on the dealer lots are rusty too.
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hoseppy
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Report this Post08-21-2014 09:44 PM Click Here to See the Profile for hoseppyClick Here to Email hoseppySend a Private Message to hoseppyEdit/Delete MessageReply w/QuoteDirect Link to This Post
Thanks Patrick, that's on the list. We've only had the car 2 mos and are knocking things off 1x1. Gotta get the lights fixed (sometimes they go up, sometimes they go down), a/c converted, radio fixed. We're not driving regularly just yet, so we've got a few months.

Thanks again everybody!

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