Ceramic Epoxy Putty for Manifold Cracks? - Miata Turbo Forum - Boost cars, acquire cats.

Welcome to Miataturbo.net   Members
 


DIY Turbo Discussion greddy on a 1.8? homebrew kit?

Reply
 
 
 
LinkBack Thread Tools
Old 07-11-2008, 11:25 AM   #1
Junior Member
Thread Starter
iTrader: (3)
 
Join Date: Oct 2007
Location: Fremont, CA
Posts: 173
Total Cats: 0
Default Ceramic Epoxy Putty for Manifold Cracks?

Hi Everyone,

I found a small hairline crack/leak on my turbo manifold. I think it's thermal-expansion related, and not a structual related crack.

I'll take some pictures when I get home tonight, but it sorta looks like this. I have a cast-iron manifold that looks to be the same design as begi or FM. I can't tell where it came from. Last owner installed it. T25 turbine inlet flange.

Question: Anyone tried using this ceramic-based exopy putty for exhaust manifold?

They even have a picture of an exhaust manifold on it.

I am looking for a good temp solution for the rest of the season. I am planning to take it off this winter and give it to a buddy to weld. He has some experience welding cracked DSM manifolds. (grind out crack, pre-heating, welding, controlled cooling)
Attached Thumbnails
Ceramic Epoxy Putty for Manifold Cracks?-cracks.jpg   Ceramic Epoxy Putty for Manifold Cracks?-18003%5B1%5D.jpg  
rippledabs is offline   Reply With Quote
Old 07-11-2008, 11:54 AM   #2
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,900
Total Cats: 1,793
Default

by thermosteel you mean weld right??



it wont hold....i promise. it will turn white and flake off.
Braineack is offline   Reply With Quote
Old 07-11-2008, 12:00 PM   #3
Senior Member
iTrader: (5)
 
Join Date: Dec 2007
Location: worcester ma
Posts: 1,124
Total Cats: 0
Default

try it, tell us how it works
urgaynknowit is offline   Reply With Quote
Old 07-11-2008, 12:28 PM   #4
I'm Miserable!
iTrader: (1)
 
Join Date: Oct 2005
Location: Columbia, SC
Posts: 858
Total Cats: 0
Default

Quote:
Originally Posted by urgaynknowit View Post
try it, tell us how it doesn't work
fixt
SloS13 is offline   Reply With Quote
Old 07-11-2008, 12:33 PM   #5
Junior Member
iTrader: (7)
 
Join Date: Oct 2007
Location: Gainesville, FL
Posts: 87
Total Cats: 0
Default

I'm pretty sure that's the same product I tried on an exhaust leak back towards the muffler on my Z32. I wasn't impressed. It was worthless near the muffler. I can't see it lasting very long on a manifold.
bradlee is offline   Reply With Quote
Old 07-11-2008, 02:29 PM   #6
Junior Member
Thread Starter
iTrader: (3)
 
Join Date: Oct 2007
Location: Fremont, CA
Posts: 173
Total Cats: 0
Default

yeah, i'll just eat the downtime and get it welded.

If i use it temporary, i'll probably have to waste a lot of time cleaning it off later, so it doesn't contaminate the welds.


Side question: will an exhaust leak pre-O2 sensor mess the reading up?
rippledabs is offline   Reply With Quote
Old 07-11-2008, 02:34 PM   #7
Elite Member
iTrader: (2)
 
Join Date: Jun 2006
Location: ABQ, NM
Posts: 1,850
Total Cats: -8
Default

Quote:
Originally Posted by rippledabs View Post
Side question: will an exhaust leak pre-O2 sensor mess the reading up?


Yes.
BenR is offline   Reply With Quote
Old 07-11-2008, 02:49 PM   #8
Elite Member
iTrader: (5)
 
Join Date: Mar 2007
Location: NYC
Posts: 1,997
Total Cats: 1
Default

fresh air is going to make the WB think you're running leaner than you actually are.
johndoe is offline   Reply With Quote
Old 07-11-2008, 03:57 PM   #9
Junior Member
iTrader: (9)
 
Join Date: Apr 2007
Location: Hanover, MA
Posts: 237
Total Cats: 0
Default

I had a loud exhaust leak on my old jeep and I used that stuff to fix the crack in the manifold. The stuff only lasted a day before turning white and flaking off but it was long enough to pass my state's vehicle inspection.
Pseudosport is offline   Reply With Quote
Old 07-11-2008, 03:58 PM   #10
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,900
Total Cats: 1,793
Default

Quote:
Originally Posted by Pseudosport View Post
The stuff only lasted a day before turning white and flaking off



like i said
Braineack is offline   Reply With Quote
Old 07-11-2008, 04:22 PM   #11
Junior Member
Thread Starter
iTrader: (3)
 
Join Date: Oct 2007
Location: Fremont, CA
Posts: 173
Total Cats: 0
Default

Quote:
Originally Posted by johndoe View Post
fresh air is going to make the WB think you're running leaner than you actually are.
So air will enter the exhaust at the leak? At which conditions does this happen?

At idle, exhaust is definitely exiting the leak because I can feel it.
rippledabs is offline   Reply With Quote
Old 07-11-2008, 10:28 PM   #12
Senior Member
 
Join Date: Jul 2008
Location: Phoenix
Posts: 657
Total Cats: 12
Default

Quote:
Originally Posted by rippledabs View Post
So air will enter the exhaust at the leak? At which conditions does this happen?

At idle, exhaust is definitely exiting the leak because I can feel it.
When you're in reverse, of course.
oilstain is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Project Gemini - Turbo Civic on the Cheap Full_Tilt_Boogie Build Threads 59 12-15-2017 09:00 PM
Another Cast Manifold Corky Bell Prefabbed Turbo Kits 18 11-22-2016 10:01 PM
Moroso Air Oil Separator Catch Can Aroundcorner Miata parts for sale/trade 2 10-01-2015 04:20 PM
ISO 1.6 turbo cast iron manifold cale saurage DIY Turbo Discussion 16 10-01-2015 12:25 PM


Thread Tools

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 Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 09:02 AM.