Exhaust is Costing Double what I Paid for the Car! - BMW Forum - BimmerWerkz.com
3-Series (E21, E30) Chat relating to the BMW 3-Series from 1975-1983 and 1984-1991 line. Specific models: BMW 315, BMW 316, BMW 318, BMW 318i, BMW 320/4, BMW 320i, BMW 320/6, BMW 323i, BMW 320i. E30 Family models include: BMW 325e, BMW 325i, BMW 325is, BMW 325ix.

 
LinkBack Thread Tools Display Modes
#1 (permalink) Old 01-19-2010, 10:13 PM
n00b
 
Join Date: Sep 2009
Posts: 7
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
dnorris5 is on a distinguished road
(Thread Starter)
Exhaust is Costing Double what I Paid for the Car!

Hey sports fans,

I'm fixing up a 1991 318is I got for $500. The muffler had two leaks, so I bought a new one. When I removed the oxygen sensor, some of the bung threads of the catalytic converter went with it. I don't want to replace the exhaust manifold, too. So please help, because I have three questions...

(1) The diagram on realoem.com RealOEM.com BMW E30 318is Exhaust manifold indicates that the exhaust manifold is a single piece separated by one gasket from the catalytic converter. After I removed the gasket, I see 4 distinct bands on the cat-end of the manifold, just like the attached picture. What are the bands?

(2) The diagram also shows four screws (part #2), which are separate from the exhaust manifold. In my case, the screws are not separate from the band closest to the manifold. If I break that band in an attempt to remove the screws, do I need to replace the exhaust manifold?

(3) Parts number 4,7, and 12in the realoem.com catalytic converter diagram RealOEM.com BMW E30 318is CATALYTIC CONVERTER/FRONT SILENCER are virtually impossible to find online. Why? If I'm a web site that sells the catalytic converter, wouldn't I also sell the parts to attach it to the frame?

Thank you in advance!
Attached Thumbnails
Click image for larger version

Name:	ExhaustManifold.jpg
Views:	65
Size:	107.9 KB
ID:	28858  
dnorris5 is offline  
Sponsored Links
Advertisement
 
#2 (permalink) Old 01-19-2010, 11:33 PM
You Can Has A Custom Title!!
 
german-speed-demon's Avatar
 
Join Date: Feb 2005
Posts: 8,829
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
german-speed-demon has a brilliant future german-speed-demon has a brilliant future german-speed-demon has a brilliant future german-speed-demon has a brilliant future german-speed-demon has a brilliant future german-speed-demon has a brilliant future german-speed-demon has a brilliant future german-speed-demon has a brilliant future german-speed-demon has a brilliant future german-speed-demon has a brilliant future german-speed-demon has a brilliant future
To be honest, i would go online and get a set of ebay headers for 200, and have a shop slap on a straight pipe on for another 200. voila, problem solved, and you don't pay double.

R.I.P fast 6


Two wheels or Four, I'm happy as long as the throttle is pinned.
german-speed-demon is offline  
#3 (permalink) Old 01-19-2010, 11:50 PM
Millions of them.
 
Torque's Avatar
 
Join Date: Dec 2003
Location: USA
Posts: 14,878
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Torque has a reputation beyond repute Torque has a reputation beyond repute Torque has a reputation beyond repute Torque has a reputation beyond repute Torque has a reputation beyond repute Torque has a reputation beyond repute Torque has a reputation beyond repute Torque has a reputation beyond repute Torque has a reputation beyond repute Torque has a reputation beyond repute Torque has a reputation beyond repute
Quote:
Originally Posted by dnorris5 View Post
Hey sports fans,

I'm fixing up a 1991 318is I got for $500. The muffler had two leaks, so I bought a new one. When I removed the oxygen sensor, some of the bung threads of the catalytic converter went with it. I don't want to replace the exhaust manifold, too. So please help, because I have three questions...

(1) The diagram on realoem.com RealOEM.com BMW E30 318is Exhaust manifold indicates that the exhaust manifold is a single piece separated by one gasket from the catalytic converter. After I removed the gasket, I see 4 distinct bands on the cat-end of the manifold, just like the attached picture. What are the bands?

(2) The diagram also shows four screws (part #2), which are separate from the exhaust manifold. In my case, the screws are not separate from the band closest to the manifold. If I break that band in an attempt to remove the screws, do I need to replace the exhaust manifold?

(3) Parts number 4,7, and 12in the realoem.com catalytic converter diagram RealOEM.com BMW E30 318is CATALYTIC CONVERTER/FRONT SILENCER are virtually impossible to find online. Why? If I'm a web site that sells the catalytic converter, wouldn't I also sell the parts to attach it to the frame?

Thank you in advance!
1. The diagrams on RealOEM are not really to be trusted as far as being to scale/accurate depictions of parts.

2. You're linking to a LHD m42 manifold ... yet you posted a picture of a RHD manifold. Where are you and which side of the car is the steering wheel on? I'm confused as all hell.

3. Try ecstuning.com

Torque is offline  
#4 (permalink) Old 01-20-2010, 07:03 PM
n00b
 
Join Date: Sep 2009
Posts: 7
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
dnorris5 is on a distinguished road
(Thread Starter)
Quote:
Originally Posted by german-speed-demon View Post
To be honest, i would go online and get a set of ebay headers for 200, and have a shop slap on a straight pipe on for another 200. voila, problem solved, and you don't pay double.
What about the cat? By "shop," you mean muffler shop, right?
dnorris5 is offline  
#5 (permalink) Old 01-20-2010, 07:08 PM
You Can Has A Custom Title!!
 
german-speed-demon's Avatar
 
Join Date: Feb 2005
Posts: 8,829
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
german-speed-demon has a brilliant future german-speed-demon has a brilliant future german-speed-demon has a brilliant future german-speed-demon has a brilliant future german-speed-demon has a brilliant future german-speed-demon has a brilliant future german-speed-demon has a brilliant future german-speed-demon has a brilliant future german-speed-demon has a brilliant future german-speed-demon has a brilliant future german-speed-demon has a brilliant future
were are you located? as Torque said, that is helpful information. If you are located somewhere that does not perform emissions testing, don't use it.

R.I.P fast 6


Two wheels or Four, I'm happy as long as the throttle is pinned.
german-speed-demon is offline  
#6 (permalink) Old 01-20-2010, 07:14 PM
n00b
 
Join Date: Sep 2009
Posts: 7
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
dnorris5 is on a distinguished road
(Thread Starter)
Quote:
Originally Posted by Torque View Post
1. The diagrams on RealOEM are not really to be trusted as far as being to scale/accurate depictions of parts.

2. You're linking to a LHD m42 manifold ... yet you posted a picture of a RHD manifold. Where are you and which side of the car is the steering wheel on? I'm confused as all hell.

3. Try ecstuning.com
(1) OK, but what are the bands in the picture?

(2) It's a LHD. I found the picture online when I was attempting to research my questions presented here. I thought it showed the bands well, I didn't mean to cause confusion.

(3) No luck at ecstuning.com.
dnorris5 is offline  
#7 (permalink) Old 01-20-2010, 07:23 PM
You Can Has A Custom Title!!
 
german-speed-demon's Avatar
 
Join Date: Feb 2005
Posts: 8,829
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
german-speed-demon has a brilliant future german-speed-demon has a brilliant future german-speed-demon has a brilliant future german-speed-demon has a brilliant future german-speed-demon has a brilliant future german-speed-demon has a brilliant future german-speed-demon has a brilliant future german-speed-demon has a brilliant future german-speed-demon has a brilliant future german-speed-demon has a brilliant future german-speed-demon has a brilliant future
dnorris, have you tried bavauto.com?

here ya go...

CIK 318I 90-95 Catalytic Converter Installation Kit
$49.95


You'll have to enter your car info, but if the attachment hardware is what you need...

R.I.P fast 6


Two wheels or Four, I'm happy as long as the throttle is pinned.
german-speed-demon is offline  
#8 (permalink) Old 01-20-2010, 10:13 PM
n00b
 
Join Date: Sep 2009
Posts: 7
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
dnorris5 is on a distinguished road
(Thread Starter)
I live in Pennsylvania, in the suburbs of Philly.

In regards to the catalytic converter install kit at bavauto.com, except for the gasket, everything is used to attach the cat to the muffler. What I am after is the metal parts (2 or 3 depending on time of production) that are bolted together to form a loop around the cat pipe, and bolted to the bottom of the transmission mounts. The assembly supports the cat.

Thanks for your help...
dnorris5 is offline  
#9 (permalink) Old 01-31-2010, 12:14 PM
n00b
 
Join Date: Sep 2009
Posts: 7
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
dnorris5 is on a distinguished road
(Thread Starter)
Alright, here's what I found out. Part #4 on the front silencer/catalytic converter diagram is the piece that bolts to the transmission via the two holes at the top of the U-shape. Part #7 is bolted via the two holes on the right to the remaining two holes of Part #4. The diagram shows these parts as if they were flattened, I suppose for the sake of clarity.

I ended up saving the catalytic converter. A friend directed me to a company called May Day Industries in Levittown, PA, right off the turnpike. I wasn't all that hopeful when I got off the phone, because they wanted to see it before they'd say if they could do the work. Well, I get there, and it turns out they are the assemblers/welders for Eastern Catalytic. It's a small company, about 10-15 employees. They tapped the threads of the old bung, threaded in a placeholder, cut out the bung, welded in a new one, and cleaned up the threads. I got to watch, which I really appreciated.

Anyway, I highly recommend them, and I will definitely use them again. Next time though, if my O2 sensor won't budge, I'm going to let them put the car on the lift and do the removal. Here's their web site MAY DAY Industries, Inc. Welding, Metal Fabrication , Production , Manufacturing, Custom Design, Custom Fabrication, Short Run Production, Iron Work, Aluninum Welding

Thanks to the posters who helped!
dnorris5 is offline  
Sponsored Links
Advertisement
 
Reply

  BMW Forum - BimmerWerkz.com > BMW Model Specific Forums > 3-Series (E21, E30)


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
User Tag List

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Similar Threads
Thread Thread Starter Forum Replies Last Post
Free $1,000 Pre-Paid Gift Card! free4uu Other Rides 6 08-03-2006 05:07 PM

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
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome