SaturnFans.com
what's new (beta) - classifieds - forums - photos


Go Back   SaturnFans.com Forums > Models > Saturn S-Series > S-Series Tech
Register FAQ Members List Groups Calendar Chat Room Search Today's Posts Mark Forums Read

Reply
 
Thread Tools Display Modes
Old 06-28-2017, 07:30 AM   #1
EvanVanVan
Member
EvanVanVan is on a distinguished road
 
Join Date: Jul 2011
Posts: 315

2002 SC2
Default Replacing full exhaust downpipe(+flex) vs cutting in new flex pipe?

I was changing my oil yesterday when I noticed holes in the exhaust pipe at bracket before the flex pipe. The braiding has also completely broken free and had slid off of the flex part. I see that holes are pretty common at that spot.

I'm wondering if it's preferable to cut out the flex pipe and replace just that part, or to replace the whole downpipe and only be forced to couple/weld once right in front of the cat instead of having to seal two spots on either side of the flex pipe? Also worried that any weld/coupling in front of the flex pipe will hinder replacing the front clamp/bracket.

FWIW, I'm thinking of just using Permatex muffler sealer and a clamp to temporarily/permanently-as-long-as-it-lasts put this exhaust pipe back together instead of finding someplace to weld it. I'm probably getting a new car in the next year or so, lol I just hope it lasts until then...


Also, I attached pictures of the sensor wires that look like they're no longer attached properly (the plastic clips seem to have broken). Does anyone have pictures of where the wires are supposed to be secured?

Thank you
Attached Images
File Type: jpg IMG_20170627_161706.jpg (164.2 KB, 40 views)
File Type: jpg IMG_20170627_162423.jpg (151.7 KB, 31 views)

REWARD EXCELLENCE!

Add to EvanVanVan's Reputation
Rate the quality of this post and help EvanVanVan reputation points. Click the reputation button near the bottom left corner of this message box. Thank you!
EvanVanVan is offline   Reply With Quote
SaturnFans.com Sponsored Links
Old 06-28-2017, 07:49 AM   #2
fetchitfido
Super Member
fetchitfido has a brilliant futurefetchitfido has a brilliant futurefetchitfido has a brilliant futurefetchitfido has a brilliant futurefetchitfido has a brilliant futurefetchitfido has a brilliant futurefetchitfido has a brilliant futurefetchitfido has a brilliant futurefetchitfido has a brilliant futurefetchitfido has a brilliant futurefetchitfido has a brilliant future
 
fetchitfido's Avatar
 
Join Date: May 2006
Posts: 14,458
 

2001 SC2
Default Re: Replacing full exhaust downpipe(+flex) vs cutting in new flex pipe?

With 3rd gens (well, '99+) the only reliable fix is to cut out the bad section and weld in new pipe. Nobody aftermarket has reliably gotten the manifold flange height/angle and downpipe bend angle even close to correct like they have for '91-'98's.

New flex pipe = under $20
Welding = ~$50

after looking at the pictures:
I'd try to find someone with a welder to just fill in the holes around the clamp. Can't see how bad the flex pipe is but the exterior metal mesh isn't part of what seals up the exhaust in that section.

REWARD EXCELLENCE!

Add to fetchitfido's Reputation
Rate the quality of this post and help fetchitfido reputation points. Click the reputation button near the bottom left corner of this message box. Thank you!
fetchitfido is offline   Reply With Quote
Old 06-28-2017, 08:08 AM   #3
EvanVanVan
Member
EvanVanVan is on a distinguished road
 
Join Date: Jul 2011
Posts: 315

2002 SC2
Default Re: Replacing full exhaust downpipe(+flex) vs cutting in new flex pipe?

Thank you, yeah my first thought was just have some one weld the holes but then when I saw the walker new flex pipe I figured that'd be the better fix. But hearing (and seeing in Richpin's video) how difficult it is to weld the top of the front joint idk if I trust someone to do it properly/fully. I'm going to take another look at the flex pipe beneath the braid and will take pictures.

Another thought I had, about about a lot of Permatex sealer and a lot of rivets around the entire thing? I heard the rivets could loosen up over time, but I feel like it should last a while if I get enough of them in there to truly keep it form vibrating.

And oh yeah, the Amazon reviews did say the Walker downpipe had to be cut re-welded to work on 3rd gens, I forgot about that. Thanks

REWARD EXCELLENCE!

Add to EvanVanVan's Reputation
Rate the quality of this post and help EvanVanVan reputation points. Click the reputation button near the bottom left corner of this message box. Thank you!
EvanVanVan is offline   Reply With Quote
Old 06-28-2017, 03:46 PM   #4
PeterT
New Member
PeterT is on a distinguished road
 
Join Date: Jun 2017
Posts: 3
Default Re: Replacing full exhaust downpipe(+flex) vs cutting in new flex pipe?

Yeah, on my 99 sc2 w/275000 on it. I had from manifold exhaust back redone, and am having codes come up now Po404. When a vehicle gets so old, get ready to replace lots of parts. Hope to not break down in middle of street

REWARD EXCELLENCE!

Add to PeterT's Reputation
Rate the quality of this post and help PeterT reputation points. Click the reputation button near the bottom left corner of this message box. Thank you!
PeterT is offline   Reply With Quote
Old 06-28-2017, 03:51 PM   #5
PeterT
New Member
PeterT is on a distinguished road
 
Join Date: Jun 2017
Posts: 3
Devil Re: Replacing full exhaust downpipe(+flex) vs cutting in new flex pipe?

But, omg my new glasspack, etc is badA

REWARD EXCELLENCE!

Add to PeterT's Reputation
Rate the quality of this post and help PeterT reputation points. Click the reputation button near the bottom left corner of this message box. Thank you!
PeterT is offline   Reply With Quote
Old 06-28-2017, 04:12 PM   #6
bumpdraft
Master Member
bumpdraft is just really nicebumpdraft is just really nicebumpdraft is just really nicebumpdraft is just really nice
 
bumpdraft's Avatar
 
Join Date: Apr 2006
Posts: 4,087
 

1998 SC2
1998 SW2
Default Re: Replacing full exhaust downpipe(+flex) vs cutting in new flex pipe?

EvanVanVan, Paint your oil pan soon. They are not that thick. Without paint, you will soon see drips on the driveway.

...
Competition Clutch 10Lb. Flywheel. 14 stalls to date (and loving it).
Oil use is 1 ounce per 100 miles with ~230,000 miles on the engine

REWARD EXCELLENCE!

Add to bumpdraft's Reputation
Rate the quality of this post and help bumpdraft reputation points. Click the reputation button near the bottom left corner of this message box. Thank you!
bumpdraft is offline   Reply With Quote
Old 06-28-2017, 06:33 PM   #7
Kaervak
Member
Kaervak has a spectacular aura aboutKaervak has a spectacular aura about
 
Kaervak's Avatar
 
Join Date: Jul 2008
Location: Garfield Heights, OH
Posts: 453
 

1999 SL2
Default Re: Replacing full exhaust downpipe(+flex) vs cutting in new flex pipe?

Quote:
Originally Posted by fetchitfido View Post
With 3rd gens (well, '99+) the only reliable fix is to cut out the bad section and weld in new pipe. Nobody aftermarket has reliably gotten the manifold flange height/angle and downpipe bend angle even close to correct like they have for '91-'98's.

New flex pipe = under $20
Welding = ~$50

after looking at the pictures:
I'd try to find someone with a welder to just fill in the holes around the clamp. Can't see how bad the flex pipe is but the exterior metal mesh isn't part of what seals up the exhaust in that section.
That's not entirely true. My 99 SL2 with a build date of 6-19-99 has a Bosal 0795190 down pipe and catalytic converter on it and it fits perfectly. There are no clearance issues with hitting the subframe or transmission and the flange is welded on with the correct angle.

REWARD EXCELLENCE!

Add to Kaervak's Reputation
Rate the quality of this post and help Kaervak reputation points. Click the reputation button near the bottom left corner of this message box. Thank you!
Kaervak is offline   Reply With Quote
Old 06-28-2017, 07:04 PM   #8
Jonasan308
Advanced Member
Jonasan308 is a glorious beacon of lightJonasan308 is a glorious beacon of lightJonasan308 is a glorious beacon of lightJonasan308 is a glorious beacon of lightJonasan308 is a glorious beacon of light
 
Jonasan308's Avatar
 
Join Date: May 2016
Location: Northeast ohio
Posts: 747
 

1999 SC1
Default Re: Replacing full exhaust downpipe(+flex) vs cutting in new flex pipe?

Quote:
Originally Posted by bumpdraft View Post
EvanVanVan, Paint your oil pan soon. They are not that thick. Without paint, you will soon see drips on the driveway.
I take it they get rotted through from rust and then weep oil?
What kind of paint would be used to protect it?

...
1999 SL1-129k at purchase(may 2016)-139k when wrecked(September 2016)
1999 SC1-156K at purchase(oct 2016)-215k(Oct 2019)
1996 SL2-116k- (oct 2019)
Dodging potholes should be a sport

REWARD EXCELLENCE!

Add to Jonasan308's Reputation
Rate the quality of this post and help Jonasan308 reputation points. Click the reputation button near the bottom left corner of this message box. Thank you!
Jonasan308 is offline   Reply With Quote
Old 06-28-2017, 07:04 PM   #9
EvanVanVan
Member
EvanVanVan is on a distinguished road
 
Join Date: Jul 2011
Posts: 315

2002 SC2
Default Re: Replacing full exhaust downpipe(+flex) vs cutting in new flex pipe?

Any thoughts on riveting the pipe as a temporary-permanent fix? I would just use the standard aluminum ones.

Quote:
Originally Posted by bumpdraft View Post
EvanVanVan, Paint your oil pan soon. They are not that thick. Without paint, you will soon see drips on the driveway.
Yeah, I was wondering about that...thanks for the tip!

REWARD EXCELLENCE!

Add to EvanVanVan's Reputation
Rate the quality of this post and help EvanVanVan reputation points. Click the reputation button near the bottom left corner of this message box. Thank you!
EvanVanVan is offline   Reply With Quote
Old 06-28-2017, 10:04 PM   #10
bumpdraft
Master Member
bumpdraft is just really nicebumpdraft is just really nicebumpdraft is just really nicebumpdraft is just really nice
 
bumpdraft's Avatar
 
Join Date: Apr 2006
Posts: 4,087
 

1998 SC2
1998 SW2
Default Re: Replacing full exhaust downpipe(+flex) vs cutting in new flex pipe?

Quote:
Originally Posted by Jonasan308 View Post
I take it they get rotted through from rust and then weep oil?
What kind of paint would be used to protect it?
I apologize for the off-topic...
Por15 is the best. It is expensive. I found the "6-pack black" to be to most economical.
Here's an old pan...Rustoleum will need to be touched-up: It rusted thru. Note the sheetmetal screw and faucet washer.
This is the inside of the same pan (pictured above). It rusted thru from the outside. Note the sheetmetal screw:

...
Competition Clutch 10Lb. Flywheel. 14 stalls to date (and loving it).
Oil use is 1 ounce per 100 miles with ~230,000 miles on the engine

REWARD EXCELLENCE!

Add to bumpdraft's Reputation
Rate the quality of this post and help bumpdraft reputation points. Click the reputation button near the bottom left corner of this message box. Thank you!
bumpdraft is offline   Reply With Quote
Old 06-29-2017, 07:52 AM   #11
trottida
Master Member
trottida has much to be proud oftrottida has much to be proud oftrottida has much to be proud oftrottida has much to be proud oftrottida has much to be proud oftrottida has much to be proud oftrottida has much to be proud oftrottida has much to be proud oftrottida has much to be proud of
 
trottida's Avatar
 
Join Date: Oct 2005
Location: North of North of Toronto, Northern Ontario, Canada
Posts: 2,739
 

1999 SL2
2001 SL1
Default Re: Replacing full exhaust downpipe(+flex) vs cutting in new flex pipe?

+1 on the POR-15. I did this to my oil pan on my 99 SL2 project which had a pin hole due to rust. I embedded a patch of fiberglass mat into the POR-15 and added a few more coats over top. It worked like a charm. There are photos in post 134 of my thread.

...
1999 SL2 MT (287,130 km @ 10/2019)
2012 Ford Focus SEL HB MT
2011 Suburban LT

Past Saturns
2001 SL1 MT (438,500 km 11y)
1993 SW2 AT (10y)
2001 LW200 MT (3.5y)
1992 SL2 MT (5y)

:canada:

REWARD EXCELLENCE!

Add to trottida's Reputation
Rate the quality of this post and help trottida reputation points. Click the reputation button near the bottom left corner of this message box. Thank you!
trottida is offline   Reply With Quote
Reply



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Replacing flex pipe xdarkxfirex Astra Tech 16 06-22-2016 10:36 PM
98 sc2 downpipe diameter (flex pipe)? EileenSC2 S-Series Tech 4 04-30-2014 02:49 AM
Need a new catalyic converter, downpipe or flex pipe? Sega|Saturn S-Series Mods 2 06-03-2013 09:33 PM
Flex pipe from downpipe to Catylitic donaldo1954 S-Series Tech 13 10-16-2010 10:25 PM
Replacing Front Flex Exhaust Pipe on SL1 Help Pls. ?!?!? tgparker S-Series General 3 01-18-2006 01:20 PM


All times are GMT -4. The time now is 12:32 PM.

Advanced Forum Search | Advanced Photo Search


Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
SaturnFans.com. The Saturn Enthusiasts Site.