General Miata Chat A place to talk about anything Miata

3 layer exhaust gasket

 
Old 05-08-2019, 08:39 PM
  #1  
Newb
Thread Starter
 
Join Date: Feb 2016
Posts: 3
Total Cats: 0
Default 3 layer exhaust gasket

Hi,
Have a 2001 1.8L VVT and plan to replace the head exhaust gasket. Shop manual speaks about 2 layer gasket with convex side towards the exhaust manifold side. My new gasket is 3 layer metal and it seems both outside layers are identical with concave around each port. Seems to fit either way around and just want to check if it makes a difference how it is installed? Stock exhaust manifold is being replaced with 4-1 header. Lotus 7 kit car build.
Thanks for any information.
Marlin
marlin is offline  
Old 05-08-2019, 08:56 PM
  #2  
Junior Member
 
Join Date: Oct 2018
Location: Tampa FL
Posts: 111
Total Cats: 12
Default

Install it either way, mine was 3 layered & it worked in either direction. Torque it to spec and be done. If you are concerned after the install, just hook up a leafblower to the tailpipe and spray soapy water around the headers to make sure nothing is leaking there.
HowPrayGame is online now  
Old 05-08-2019, 09:31 PM
  #3  
Newb
Thread Starter
 
Join Date: Feb 2016
Posts: 3
Total Cats: 0
Default

Thanks for the quick reply. The answer I was hoping for. And the great low-tech test rig. Love it.
marlin is offline  
Old 05-09-2019, 03:57 PM
  #4  
Elite Member
iTrader: (2)
 
Join Date: Aug 2016
Location: Woostuh, MA
Posts: 3,879
Total Cats: 109
Default

Originally Posted by HowPrayGame View Post
Install it either way, mine was 3 layered & it worked in either direction. Torque it to spec and be done. If you are concerned after the install, just hook up a leafblower to the tailpipe and spray soapy water around the headers to make sure nothing is leaking there.
But won't my turbo spin backwards and build boost in reverse then!?
ridethecliche is offline  
Old 05-09-2019, 05:31 PM
  #5  
Junior Member
 
Join Date: Oct 2018
Location: Tampa FL
Posts: 111
Total Cats: 12
Default

It will, before you do that you will need to weld in a turbonator in your downpipe so you don't build any reverse-boost
HowPrayGame is online now  
Old 05-09-2019, 05:55 PM
  #6  
Elite Member
 
codrus's Avatar
 
Join Date: Mar 2007
Location: Santa Clara, CA
Posts: 4,476
Total Cats: 532
Default

I'm aware that most/all of the people in this thread are trolling, but just to be clear, blowing air through the turbo in order to spin it when there's no pressurized oil going to the bearing is a great way to junk it.

--Ian
codrus is offline  
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Ash94
DIY Turbo Discussion
17
05-09-2019 11:54 PM
Yada_12
Engine Performance
9
05-04-2019 01:42 AM
bawward
Miata parts for sale/trade
8
05-01-2019 11:59 AM
rwyatt365
Miata parts for sale/trade
7
04-29-2019 04:31 PM
TNTUBA
Miata parts for sale/trade
3
04-10-2019 04:40 PM


Thread Tools
Search this Thread
Quick Reply: 3 layer exhaust gasket


Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.