Oil leak at headgasket? - 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 06-22-2014, 11:48 PM   #1
Free Moustache Rides
Thread Starter
iTrader: (8)
 
matthewdesigns's Avatar
 
Join Date: Jun 2008
Location: Colorado Springs
Posts: 1,656
Total Cats: 49
Default Oil leak at headgasket?

I have a leak from what looks like the driver's side front of the head/block area. Car is a '92 with original 120K mile, unopened engine. Turboed for the last 15K miles. I did a timing belt, seals, etc, a couple weekends ago and cleaned the entire block with about half a case of brake clean to ensure I could see any leaks from the front cover and valve cover gasket. I also changed the CAS o-ring. Valve cover gasket has been clean as a whistle ever since, nothing down the back of the head/block from the CAS, and I had the valve cover off yesterday and it's dry under the front cover.

From what I've read in the last hour or so the head gasket can leak oil sometimes and that's what this looks like to me, but I'd like some opinions. Joe started a thread about this a long time ago, and Hustler said he had a leak in the same place where I suspect mine is weeping, but there was no followup from him (Hustler). I've not had a Miata head off, but I think there's an oil galley in this corner, circled in red below (random pic, not my car).



Here are some shots of that location on my own engine. The first couple show what looks like gasket material poking out, which I removed before the last two. Note that the head and back of the TB area are relatively clean and dry compared to the wet oily slick starting at this corner and trailing down the edge of the block.







Attached Thumbnails
Oil leak at headgasket?-galley.jpg   Oil leak at headgasket?-imag4431.jpg   Oil leak at headgasket?-imag4433.jpg   Oil leak at headgasket?-imag4438.jpg   Oil leak at headgasket?-imag4441.jpg  

matthewdesigns is offline   Reply With Quote
Old 06-23-2014, 10:56 PM   #2
Junior Member
 
Join Date: Oct 2010
Location: Montréal, Qc
Posts: 62
Total Cats: 8
Default

Had an oil leak at the same place as you, replaced the HG.. after, nothing.



Attached Thumbnails
Oil leak at headgasket?-nw6jj.jpg   Oil leak at headgasket?-xzbox.jpg  
PaCHeKo! is offline   Reply With Quote
Old 06-25-2014, 12:33 AM   #3
Free Moustache Rides
Thread Starter
iTrader: (8)
 
matthewdesigns's Avatar
 
Join Date: Jun 2008
Location: Colorado Springs
Posts: 1,656
Total Cats: 49
Default

Well ****, curse of the Mariners? Haha. Those pics look pretty accurate. Thanks for chiming in.
matthewdesigns is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
OTS Bilstein to motorsports ASN conversion stoves Suspension, Brakes, Drivetrain 5 04-21-2016 04:00 PM
Moroso Air Oil Separator Catch Can Aroundcorner Miata parts for sale/trade 2 10-01-2015 04:20 PM
Leaky Wilwoods mx592 Suspension, Brakes, Drivetrain 1 10-01-2015 01:45 AM
Low oil pressure after 1.8 swap and new turbo setup JesseTheNoob DIY Turbo Discussion 15 09-30-2015 03:44 PM
3rd Time's a Charm...hopefully. zephyrusaurai Meet and Greet 2 09-28-2015 11:59 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 07:30 AM.