Coolant leak from M-Tuned re-route - Miata Turbo Forum - Boost cars, acquire cats.

Welcome to Miataturbo.net   Members
 


Engine Performance This section is for discussion on all engine building related questions.
Sponsored by:
Sponsored by:

Reply
 
 
 
LinkBack Thread Tools Search this Thread
Old 04-02-2016, 06:53 PM   #1
Senior Member
Thread Starter
 
Join Date: Feb 2009
Location: Philadelphia
Posts: 815
Total Cats: 47
Default Coolant leak from M-Tuned re-route

Have a leak at the back of my head, it's a BP4W. Basically I have a really slow drip/seep at the back of my head where the new housing connects to the head. We are going to pull and replace the gasket there, but I am wondering if I can just get one from the dealer, or if I need to use a specific one for the M-tuned re-route and where I can find it.

My mechanic was also asking if we could substitute in an o-ring but i don't see a groove or anywhere else for it to go.

I believe it's coming from where this piece attaches to the head, but not yet verified because I haven't pulled anything. It's one of a few things to get done by next track day and I don't want to pull it apart until I have a few ideas to avoid as much down-time as I can.

Attached Thumbnails
Coolant leak from M-Tuned re-route-80-9107975592_fe22ce9e2c_z_cb5420db577afadd8ca351d937c148be237ffb2f.jpg  
Mazdaspeeder is offline   Reply With Quote
Old 04-02-2016, 07:06 PM   #2
mkturbo.com
iTrader: (24)
 
shuiend's Avatar
 
Join Date: May 2006
Location: Charleston SC
Posts: 13,775
Total Cats: 1,106
Default

You should be able to use a gasket from any parts store. I'm guessing it's the same size gasket as the front water neck, but I don't guarantee that as I've never had a mtuned reroute. I always use red gasket maker, then a real gasket, then another layer of red gasket maker to seal at the back of the head for reputed. Have always had leaks there if I did not do it what way.
shuiend is offline   Reply With Quote
Old 04-02-2016, 07:40 PM   #3
Murderator
iTrader: (76)
 
18psi's Avatar
 
Join Date: Apr 2008
Posts: 36,181
Total Cats: 2,581
Default

just make sure it's a proper (I think composite) oem gasket, and not the paper junk the auto stores usually sell
18psi is offline   Reply With Quote
Old 04-02-2016, 08:45 PM   #4
Cpt. Slow
iTrader: (25)
 
curly's Avatar
 
Join Date: Oct 2005
Location: Oregon City, OR
Posts: 12,106
Total Cats: 518
Default

Paper stuff is fine if you have two clean surfaces. Rtv is needed especially if you have a corroded surface, common these days.
curly is offline   Reply With Quote
Old 04-02-2016, 08:48 PM   #5
Murderator
iTrader: (76)
 
18psi's Avatar
 
Join Date: Apr 2008
Posts: 36,181
Total Cats: 2,581
Default

yeah I've had to use rtv even with clean surfaces before, and the paper gaskets failed like half the time
18psi is offline   Reply With Quote
Old 04-02-2016, 08:50 PM   #6
Mr Broke Pants
iTrader: (9)
 
thumpetto007's Avatar
 
Join Date: Sep 2010
Posts: 1,599
Total Cats: 29
Default

make sure you remove ALL of the previous gasket material. Its hard to reach, but take your time, and don't use a glove, so you can really feel the surface. Be careful not to scratch the aluminum with the razor blade.

Also don't be shy with tightening those two bolts on the housing. Its hard to gauge torque using an allen wrench, just make sure it's tight.

I think I also put a very light/thin amount of sealant on the housing/gasket mating surface, that way the gasket stayed where it was supposed to be.
thumpetto007 is offline   Reply With Quote
Old 04-02-2016, 09:09 PM   #7
Elite Member
iTrader: (21)
 
Join Date: Jun 2007
Location: Rochester, NY
Posts: 5,684
Total Cats: 555
Default

I've said it before and I'll say it again. Clean up the surfaces (light sanding, scotchbrite, etc.), and use Indian Head Shellac on both sides of the gasket. Never any leaks done that way. I'll never use anything else.
rleete is offline   Reply With Quote
Old 04-03-2016, 01:54 PM   #8
Junior Member
 
Join Date: Aug 2009
Posts: 186
Total Cats: 1
Default

Quote:
Originally Posted by rleete View Post
I've said it before and I'll say it again. Clean up the surfaces (light sanding, scotchbrite, etc.), and use Indian Head Shellac on both sides of the gasket. Never any leaks done that way. I'll never use anything else.
I've messed w/ my cooling system 3 times in the past half year and the last was my first time using a *subjectively* small amount of blk RTV. Thankfully, no leaks.

I was told to use a plastic scraper vs metal... as I never felt I had cleaned/prep the surface of the head enough, but it didn't do anything lol.

Best pic I could take of the rear outlet surface after I cleaned it. I never felt it was clean enough but gave up and hoped for the best.

Attached Thumbnails
Coolant leak from M-Tuned re-route-25534058470_087b300e73_b.jpg  
greeenteeee is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
VVT Head - 160,000 miles stefanst Miata parts for sale/trade 7 05-21-2016 09:33 PM
FS/FT - 94/95 MS3 Basic Itty Miata parts for sale/trade 11 04-19-2016 12:55 PM
Windows 10 is great; I'm dumb Enginerd MEGAsquirt 14 04-17-2016 08:20 AM
Im back, with miata #3 redturbomiata Meet and Greet 5 04-07-2016 10:13 AM
Trade my BP4W head for a flattop manifold williams805 Miata parts for sale/trade 0 03-27-2016 08:57 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

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 05:00 PM.