Notices
Series I Tech Garage The place to discuss anything technical about the RX-8 that doesn't fit into any of the categories below.

what can cause catalytic failure

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old 02-03-2007, 05:30 PM
  #1  
Registered User
Thread Starter
 
turbosa22c's Avatar
 
Join Date: Mar 2006
Posts: 125
Likes: 0
Received 0 Likes on 0 Posts
what can cause catalytic failure

heres a link i found. straight forward easy to understand stuff. might help someone.
http://www.car-sound.com/04basics/04failures.asp
Old 02-03-2007, 10:56 PM
  #2  
4th batch : Apr 03'
 
foo77's Avatar
 
Join Date: Mar 2005
Location: Bor. Isle
Posts: 1,840
Likes: 0
Received 1 Like on 1 Post
nice find
Old 02-03-2007, 11:41 PM
  #3  
Peeping over the fence
 
Wilson's Avatar
 
Join Date: Oct 2006
Location: Natchez, MS
Posts: 524
Likes: 0
Received 0 Likes on 0 Posts
Yes. Very good info.
Old 02-04-2007, 12:51 AM
  #4  
d j
hukbong himpapawid
 
d j's Avatar
 
Join Date: Aug 2006
Location: Schwedelbach, Germany
Posts: 689
Likes: 0
Received 1 Like on 1 Post
thanks for sharing!
Old 02-07-2007, 01:34 AM
  #5  
Out of NYC
iTrader: (1)
 
nycgps's Avatar
 
Join Date: Jun 2005
Location: Planet Earth
Posts: 19,881
Received 32 Likes on 30 Posts
Answer : Human beings.
Old 02-07-2007, 03:13 AM
  #6  
Registered
iTrader: (2)
 
BoosTED's Avatar
 
Join Date: Dec 2004
Location: Minneapolis, MN
Posts: 2,896
Likes: 0
Received 2 Likes on 2 Posts
It a catalytic convertor gets clogged or a meltdown occurs can that be seen by looking down the pipe?

I noticed that all the examples had the catalytic cut in half to show the damage.
Old 02-07-2007, 09:30 AM
  #7  
Got Another Rotary
 
Jax_RX8's Avatar
 
Join Date: Aug 2006
Location: Fredericksburg, VA
Posts: 608
Likes: 0
Received 2 Likes on 2 Posts
No wonder our 8's have so many catalyst failures - we have all the characteristics that destroy converters (and more?):
- more unburned fuel than a piston engine entering exhaust causing higher EGTs and carbon buildup
- oil being added to the combustion process via the OMP and Premix causing even more carbon generation
- carbon buildup fouling the plugs and amplifying the unburned fuel problem
- all this super heating and clogging the converter at the same time
- all this excess converter heat backing up causing higher engine/exhaust/combustion temps
- More heat stress on all engine components

What to do? Glad I run FP60.
Old 02-07-2007, 09:14 PM
  #8  
Registered
 
Ajax's Avatar
 
Join Date: Feb 2004
Location: Lewisville, TX
Posts: 2,390
Received 0 Likes on 0 Posts
So i thought mine was failing this week and it turns out i needed 4 new plugs and 4 new coils.. and it probably was failing, because needing 4 new plugs and 4 new coils would cause the damn thing to eat unburnt fuel..
they shoulda replaced it..
blah.. dealerships..
Old 02-07-2007, 10:01 PM
  #9  
Mu ha.. ha...
 
Razz1's Avatar
 
Join Date: Aug 2004
Location: Cali
Posts: 14,361
Likes: 0
Received 3 Likes on 3 Posts
Samething we been saying for years, but another sight helps those that question us.
Old 02-07-2007, 11:01 PM
  #10  
Out of NYC
iTrader: (1)
 
nycgps's Avatar
 
Join Date: Jun 2005
Location: Planet Earth
Posts: 19,881
Received 32 Likes on 30 Posts
Originally Posted by 4 years to Supercharge
It a catalytic convertor gets clogged or a meltdown occurs can that be seen by looking down the pipe?

I noticed that all the examples had the catalytic cut in half to show the damage.
I had mine replaced because *SHHhhhhhhh* I dont want to say it here.

When he show me the *dead cat*, it was actually all empty inside .... damn now when I think of it, I should've asked him *Can I keep it?* lol guess not, I think dealerships need the old parts to get credit for new parts.
Old 02-08-2007, 09:29 AM
  #11  
Registered
 
Georgia8er's Avatar
 
Join Date: Feb 2004
Location: Georgia
Posts: 371
Likes: 0
Received 0 Likes on 0 Posts
Even though an RX-8 runs rich, too lean will burn up the cat too. Your EGT will increase with a lean condition also.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
RXFEVER
RX-8 Parts For Sale/Wanted
38
08-29-2018 10:14 AM
RXFEVER
West For Sale/Wanted
17
09-11-2016 02:51 PM
PTQLam
RX-8 Parts For Sale/Wanted
3
05-23-2016 11:17 AM
ÜberJumper
Canada Forum
18
05-17-2016 11:05 AM
Austin22
New Member Forum
5
09-23-2015 04:46 PM



You have already rated this thread Rating: Thread Rating: 0 votes,  average.

Quick Reply: what can cause catalytic failure



All times are GMT -5. The time now is 07:12 PM.