MSM manifold - turbo gasket - Miata Turbo Forum - Boost cars, acquire cats.

Welcome to Miataturbo.net   Members
 


Prefabbed Turbo Kits A place to discuss prefabricated turbo kits on the market
Sponsored by:
Sponsored by:

Reply
 
 
 
LinkBack Thread Tools
Old 01-09-2013, 05:25 PM   #1
Senior Member
Thread Starter
iTrader: (3)
 
Join Date: Jul 2011
Location: STL
Posts: 528
Total Cats: 24
Default MSM manifold - turbo gasket

I blew the manifold to turbo gasket twice this year while out on track. Using standard, not inconel hardware which I know is part of the problem. I want to fix it one more time, properly. Should I...

1 - Replace the gasket and add inconel
2 - Install inconel with no gasket
3 - Resurface turbo/manifold flat and add inconel with no gasket

I know a lot of you are running gasket-less. How flat do the flanges need to be? I'd like to stick a feeler gauge under a straight edge on the turbo and if flat enough avoid the giant pain in the *** that is pulling a MSM turbo. Is a HD Racing combination square straight () enough for this measurement?
midpack is offline   Reply With Quote
Old 01-09-2013, 06:18 PM   #2
Murderator
iTrader: (76)
 
18psi's Avatar
 
Join Date: Apr 2008
Posts: 36,165
Total Cats: 2,573
Default

option 3 = win

as for the flat part: its either flat or its not. if its not, it will leak. lol
18psi is offline   Reply With Quote
Old 01-09-2013, 06:20 PM   #3
Destroyer of Inconel
iTrader: (37)
 
EO2K's Avatar
 
Join Date: Apr 2010
Location: In ur driveway, abusin' ur WPA
Posts: 9,642
Total Cats: 954
Default

EO2K is offline   Reply With Quote
Old 01-09-2013, 07:11 PM   #4
Senior Member
Thread Starter
iTrader: (3)
 
Join Date: Jul 2011
Location: STL
Posts: 528
Total Cats: 24
Default

I'll have to find a piece of glass and see how straight my 3/8 extension is. What's the biggest feeler gauge I should allow between the straight edge and flange? Do I need another option?

4 - Don't be a bitch and pull that **** already
midpack is offline   Reply With Quote
Old 01-09-2013, 09:37 PM   #5
Cpt. Slow
iTrader: (25)
 
curly's Avatar
 
Join Date: Oct 2005
Location: Oregon City, OR
Posts: 12,105
Total Cats: 518
Default

Oh, option 4 definitely.

No need for the extension straight option on a turbo/manifold, it's small enough you can get a straight edge like the one you listed to work. The extension is for a bigger surface, like your block.

I'm not sure on which feeler gauge would be good to use, you'd think it wouldn't have to be as flat as a block, but I really don't know how sensitive it is to being out of flat.
curly is offline   Reply With Quote
Old 01-09-2013, 09:39 PM   #6
Murderator
iTrader: (76)
 
18psi's Avatar
 
Join Date: Apr 2008
Posts: 36,165
Total Cats: 2,573
Default

if you machine it right you shouldn't be able to get any feeler gauge anywhere. it will be FLAT
18psi is offline   Reply With Quote
Old 01-09-2013, 10:21 PM   #7
Supporting Vendor
iTrader: (31)
 
Savington's Avatar
 
Join Date: Nov 2006
Location: Sunnyvale, CA
Posts: 14,353
Total Cats: 1,319
Default

Flat is .000". If it's not .000", it's not flat.
Savington is offline   Reply With Quote
Old 01-09-2013, 10:50 PM   #8
Senior Member
Thread Starter
iTrader: (3)
 
Join Date: Jul 2011
Location: STL
Posts: 528
Total Cats: 24
Default

Thanks. Flat it is. I really wish you sold a M8x1.25 Inconel kit Savington. It's tight as-is and I'm not sure M10 nuts will fit.
midpack is offline   Reply With Quote
Old 01-09-2013, 11:54 PM   #9
Junior Member
iTrader: (5)
 
Join Date: Mar 2012
Location: Gilbert, Az
Posts: 337
Total Cats: 26
Default

Quote:
Originally Posted by midpack View Post
Thanks. Flat it is. I really wish you sold a M8x1.25 Inconel kit Savington. It's tight as-is and I'm not sure M10 nuts will fit.
I thought TSE offered an M8 kit as well. If not, FM does offer an M8 setup:

Flyin' Miata : Turbochargers : Parts and upgrades : Inconel 718 turbo stud
Flyin' Miata : Turbochargers : Parts and upgrades : Stage 8 locking turbo hardware(8mm)

If you can't get the m10 to work, those might do the trick (albeit not as stout as the m10 solution).
SJP0tato is offline   Reply With Quote
Old 01-10-2013, 12:51 AM   #10
Senior Member
 
Join Date: Dec 2004
Location: Brisbane, Australia
Posts: 1,272
Total Cats: 32
Default

Just out of interest are you using the OE turbo brace that ties the turbo to the block?

Attached Images
File Type: jpg 7109240671_3c567f16ed.jpg (103.3 KB, 372 views)
timk is offline   Reply With Quote
Old 01-10-2013, 02:43 AM   #11
Senior Member
Thread Starter
iTrader: (3)
 
Join Date: Jul 2011
Location: STL
Posts: 528
Total Cats: 24
Default

Yep
midpack is offline   Reply With Quote
Old 01-11-2013, 02:12 PM   #12
Senior Member
iTrader: (9)
 
Join Date: Oct 2006
Location: Lexington SC
Posts: 1,003
Total Cats: 14
Default

That is one piece I still have to find for my MSM turbo swap. Is there any reason not to run that brace? I got the FM 8mm Inconel studs a while back and they appear to fit perfectly on the MSM hardware lenthwhise.
Rallas is offline   Reply With Quote
Old 01-11-2013, 03:10 PM   #13
Cpt. Slow
iTrader: (25)
 
curly's Avatar
 
Join Date: Oct 2005
Location: Oregon City, OR
Posts: 12,105
Total Cats: 518
Default

Quote:
Originally Posted by Savington View Post
Flat is .000". If it's not .000", it's not flat.
So you're suggesting he requires a ground surface on his manifold and turbo to create an adequate seal?

I'd bet $5 of monopoly money no one's ever done that on this forum.
curly is offline   Reply With Quote
Old 01-11-2013, 03:22 PM   #14
Moderator
iTrader: (11)
 
sixshooter's Avatar
 
Join Date: Nov 2008
Location: Tampa, Florida
Posts: 15,633
Total Cats: 1,559
Default

My turbo to mani seal used a little wheel bearing grease as discussed in another thread from a few years back. It fill the minute gaps and turns to hard carbon as it warms up.
sixshooter is offline   Reply With Quote
Old 01-11-2013, 03:37 PM   #15
Elite Member
iTrader: (6)
 
TorqueZombie's Avatar
 
Join Date: May 2011
Location: Lebanon, TN
Posts: 1,668
Total Cats: 63
Default

Quote:
Originally Posted by curly View Post
So you're suggesting he requires a ground surface on his manifold and turbo to create an adequate seal?

I'd bet $5 of monopoly money no one's ever done that on this forum.
You owe me $5 or monopoly monies.
TorqueZombie is offline   Reply With Quote
Old 01-11-2013, 09:34 PM   #16
Cpt. Slow
iTrader: (25)
 
curly's Avatar
 
Join Date: Oct 2005
Location: Oregon City, OR
Posts: 12,105
Total Cats: 518
Default

You've had your manifold and turbo professionally ground? Grats on the overkill.
curly is offline   Reply With Quote
Old 01-13-2013, 12:53 AM   #17
Elite Member
 
Join Date: Feb 2008
Location: Victoria, BC
Posts: 2,322
Total Cats: 12
Default

On both of my turbo setups (old *** 300zx t25 & used HKS mani / Chinacharger & Flying miata cast mani) I was able to just bolt the turbo to manifold with no gaskets and had zero leaks. OP, have you tried just running it without a gasket?
dustinb is offline   Reply With Quote
Old 01-13-2013, 01:03 AM   #18
Murderator
iTrader: (76)
 
18psi's Avatar
 
Join Date: Apr 2008
Posts: 36,165
Total Cats: 2,573
Default

Quote:
Originally Posted by TorqueZombie View Post
You owe me $5 or monopoly monies.
make that 10
Quote:
Originally Posted by curly View Post
You've had your manifold and turbo professionally ground? Grats on the overkill.
it was like 20 for the turbo and like 40 for the mani. really not that bad to have the piece of mind of overkill
18psi is offline   Reply With Quote
Old 01-13-2013, 01:40 AM   #19
Cpt. Slow
iTrader: (25)
 
curly's Avatar
 
Join Date: Oct 2005
Location: Oregon City, OR
Posts: 12,105
Total Cats: 518
Default

Belt sanded is not .000 flat. .000 flat is ground like your crank shaft bearing surface. Except that's round obviously.
curly is offline   Reply With Quote
Old 01-13-2013, 01:49 AM   #20
Murderator
iTrader: (76)
 
18psi's Avatar
 
Join Date: Apr 2008
Posts: 36,165
Total Cats: 2,573
Default

Machined=/=belt sanded
18psi is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Garrett Turbo, 1.8 Oil Pan, & Misc. Stuff nbdooey Miata parts for sale/trade 9 08-30-2017 10:50 PM
Another Cast Manifold Corky Bell Prefabbed Turbo Kits 18 11-22-2016 10:01 PM
Bad head gasket or ? shooterschmidty Engine Performance 8 09-30-2015 11:28 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 02:22 AM.