Go Back   MustangForums.com > Ford Mustang Tech > Classic Mustangs (Tech)
Sign in using an external account
Register Forgot Password?
Search


Classic Mustangs (Tech) Technical discussions about the Mustangs of yester-year.

Welcome to Mustang Forums!
Welcome to Mustang Forums.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, at no cost, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!


Reply
 
 
 
 
Thread Tools Search this Thread
Old 08-22-2009, 01:30 PM   #1
TNTS70STANG
1st Gear Member
 
Join Date: Sep 2006
Location:
Posts: 64
Default OIL COMING OUT FROM THE SEAM BETWEEN THE CYLINDER HEAD AND BLOCK?

Hey guys,

Here's another one for you. Let me know if you can come up with the punch line to this interesting one:

What does it mean when there's oil GUSHING from the seam between the cylinder head and the engine block? On top of this, the motor over heats, the engine runs like it's only running on 6 or 7 cylinders.

If somebody could tell me what would cause this or what might be wrong...me love you long time!

-TNT
This ad is not displayed to registered or logged-in members.
Register your free account today and become a member on Mustang Forums!
__________________
F.O.R.D.
(First On Race Day!)
TNTS70STANG is offline   Reply With Quote
Old 08-22-2009, 01:47 PM   #2
Stepman
4th Gear Member
 
Join Date: Mar 2004
Vehicle: 69 coupe
Location: Az
Posts: 1,023
Default

Pull your plugs and I bet you find coolant....you need a head gasket.
Stepman is offline   Reply With Quote
Old 08-22-2009, 01:51 PM   #3
MonsterBilly
4th Gear Member
 
MonsterBilly's Avatar
 
Join Date: Aug 2008
Vehicle: 66 coupe
Location: Goodyear, AZ
Posts: 1,427
Default

I second that. You have a blown head gasket. i dont think you need to pull the plug tho. it is a slam dunk!
__________________
66 coupe, Tuff Dawg forged 10.5:1 - 331, T5, TRick Flow heads, Stealth Intake, Holley 670 Street Avenger, Centerforce Clutch, Headman Headers, Ford Motorsports E303 Cam, 8.8 explorer rear end .373 gears, Cobra 4 wheel disc brakes, 17" TT2's
MonsterBilly is offline   Reply With Quote
Old 08-22-2009, 03:30 PM   #4
TNTS70STANG
1st Gear Member
 
Join Date: Sep 2006
Location:
Posts: 64
Default Thanks guys...but you'll love this...

Thanks guys,

Here's the kicker:

Brand new gaskets all through the motor. The heads were milled, magnafluxed, new valve seals were installed and valves were cleaned up and grinded down as needed. I checked the motor for warping and it was fine. A very well known machine shop did the work on the heads, I installed them with new head gaskets, to proper torque and sequence.

Could it be that I cracked the head?

Also, there's no coolant in the oil and no oil in the coolant.

Thanks again guys!
__________________
F.O.R.D.
(First On Race Day!)
TNTS70STANG is offline   Reply With Quote
Old 08-22-2009, 04:00 PM   #5
SKAR
Moderator
 
SKAR's Avatar
 
Join Date: Feb 2007
Vehicle: 90' Miata, 50' F47, 88' Notch
Location: The Great White North
Posts: 3,050
Default

Just because the gaskets are new doesnt mean it couldnt of been pushed out as easy as an old gasket.....
__________________
SKAR is offline   Reply With Quote
Old 08-22-2009, 06:42 PM   #6
cprstreetmachines
4th Gear Member
 
Join Date: Aug 2007
Vehicle: 67 and 08 Mustang
Location: Socal
Posts: 1,235
Default

Check the intake manifold. If it was put on wrong, you could get leaks from the front and run along the head to block seal and look like a HG. It could also be the reason for the mis firing if it didn't seal right and has a vacuum leak. I've never seen a blown HG leak oil externally. The oil that goes through the head gasket isn't under pressure, and would be extremely hard for it to actually leak externally. Not saying it's impossible, but figure out exactly where it's coming from before throwing money at it. Could be a valve cover leak
__________________
'08 Shelby Twin turbo putting down 849rwhp on 91, stock engine.
cprstreetmachines is offline   Reply With Quote
Old 08-22-2009, 07:04 PM   #7
TNTS70STANG
1st Gear Member
 
Join Date: Sep 2006
Location:
Posts: 64
Default Thanks for the help.

Thanks cprstreetmachines.

Well, to tell you the truth, this severe oil leak caused a fire the other night. This was how I figured out that I had an oil leak. Right after I noticed the fire, the motor started running funny and it then overheated very quickly. The next morning, I took a look at my char-broiled motor and engine compartment and I fired the motor up to see where it was leaking oil from. At that point, it appeared that the driver side valve cover was leaking onto the headers. As a result of the fire, it burnt 3 of the spark plug wires to a crisp. I then figured that this was more than likely the reason for the motor running funny. I then did all of the spark plugs and wires, cap and rotor and then I replaced both of the valve cover gaskets. THe leak is still severe. I didn't see any oil leaking from the intake.
__________________
F.O.R.D.
(First On Race Day!)
TNTS70STANG is offline   Reply With Quote
Old 08-22-2009, 07:37 PM   #8
Stepman
4th Gear Member
 
Join Date: Mar 2004
Vehicle: 69 coupe
Location: Az
Posts: 1,023
Default

CRP...you never sen oil come from a head gasket? That's hard to believe. On another note...the oil coming from the valve covers and intakes isn't under any pressure either.
Stepman is offline   Reply With Quote
Old 08-22-2009, 11:19 PM   #9
JMD
6th Gear Member
 
JMD's Avatar
 
Join Date: Jan 2007
Vehicle: 39 Ford
Location: AR
Posts: 5,468
Default

Quote:
Originally Posted by cprstreetmachines View Post
Check the intake manifold. If it was put on wrong, you could get leaks from the front and run along the head to block seal and look like a HG. It could also be the reason for the mis firing if it didn't seal right and has a vacuum leak. I've never seen a blown HG leak oil externally. The oil that goes through the head gasket isn't under pressure, and would be extremely hard for it to actually leak externally. Not saying it's impossible, but figure out exactly where it's coming from before throwing money at it. Could be a valve cover leak
I was going to say that......
__________________
Building cars is EASY, building cars right is a mite bit harder.

JMD is offline   Reply With Quote
Old 08-22-2009, 11:28 PM   #10
JMD
6th Gear Member
 
JMD's Avatar
 
Join Date: Jan 2007
Vehicle: 39 Ford
Location: AR
Posts: 5,468
Default

Quote:
Originally Posted by Stepman View Post
CRP...you never sen oil come from a head gasket? That's hard to believe. On another note...the oil coming from the valve covers and intakes isn't under any pressure either.

The oil from the v/cs is leaking because the oil pools at the lower edge of the cover, not so with a head.

The pressure oil to the top of the head travels through the pushrods, not through a drilled passage like on my Lincoln Y block, which incidentally would still rarely or ever "gush" oil due to a blown head gasket.

This WILL NOT happen on a 289/302/351 (or an FE either) on one in a million engines...

The oil is too far removed from the exposed edges of the head gasket... if it were leaking here the OP would have read more like "there is a giant crack in my engine"...
__________________
Building cars is EASY, building cars right is a mite bit harder.

JMD is offline   Reply With Quote
Old 08-22-2009, 11:28 PM
MustangForums
Ford Mustang




Paid Advertisement

 
 
 
Reply

Tags
351, 66, block, coming, cover, cracked, engine, gallies, gasket, head, leak, leaking, mustang, oil, repair, side, valve, windsor

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

Forum Jump

Advertising

Featured Sponsors
Vendor Directory
New Sponsors
All times are GMT -5. The time now is 08:56 PM.

© Internet Brands, Inc.


This forum is owned and operated by Internet Brands, Inc., a Delaware corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford Motor Company or its related companies in any way. Ford® is a registered trademark of the Ford Motor Company
Emails Backup