4.0 OHV Steaming Exhaust - Ranger-Forums - The Ultimate Ford Ranger Resource


4.0L OHV & SOHC V6 Tech General discussion of 4.0L OHV and SOHC V6 Ford Ranger engines.

Reply
 
LinkBack Thread Tools Search this Thread
  #1  
Old 04-20-2012
Member
Thread Starter
 
Join Date: Jan 2011
Location: Medina, TN
Posts: 6
4.0 OHV Steaming Exhaust

I just did some horsetrading for a 93 std cab 4X4 with 4.0 5sp. I knew the engine had some issues but for what I have in it, not a problem. When running, the exhaust is white steam and loaded with antifreeze.

My original thoughts are the head gaskets or possible cracked head. Is it possible that its the intake gaskets or something more simple than removing the heads?

I'm in the middle of tear it down. Well, just got the right valve cover off last night.

Any ideas??
Reply With Quote
  #2  
Old 04-21-2012
Blhde's Avatar
Member
 
Join Date: Oct 2005
Location: Northern IL
Posts: 2,804
The heads are known to crack between the valves into the water passages.

https://www.alabamacylinderhead.com/...ail.php?id=168
Reply With Quote
  #3  
Old 04-21-2012
Downey's Avatar
RF Veteran
iTrader: (1)
 
Join Date: Oct 2007
Location: Muncy, PA
Posts: 8,470
Could be the gaskets for the intake too
Reply With Quote
  #4  
Old 04-21-2012
06RangerXLT's Avatar
Member
iTrader: (2)
 
Join Date: Feb 2011
Location: Halton Hills, Ont
Posts: 1,685
start from the top, work your way down till ya find the cause
Reply With Quote
  #5  
Old 04-23-2012
Member
Thread Starter
 
Join Date: Jan 2011
Location: Medina, TN
Posts: 6
I found one of the cause of the water leaks. The intake gasket back by cylinder 3 was green and the springs around the rocker arm shaft was coated with water. Turned the motor with out the spark plugs and water gushed from cylinder 2 and 3 (passenger side middle and rear).

This led me to believe that I had found the problem. GREAT!! Well for grins and giggles, I did a compression check. Cylinders 2, 3, 5 and 6 had between 105 to 110 PSI. That's good. But cylinders 1 and 4 are both around 50-60 psi. Being I've got the engine down this far, I'm gonna ahead and removing the head and check the valves and head for cracks.
Reply With Quote
  #6  
Old 04-23-2012
morris's Avatar
RF Veteran
iTrader: (5)
 
Join Date: Feb 2008
Location: South Detroit.
Posts: 7,833
Don't forget about warpage.
Reply With Quote
  #7  
Old 04-26-2012
Member
Thread Starter
 
Join Date: Jan 2011
Location: Medina, TN
Posts: 6
Warpage is the least of my problems. After removing the heads, I found that four of the six cylinders have this hair line crack between the valves.

Ya'll think it time for a set of new heads??
Attached Thumbnails
4.0 OHV Steaming Exhaust-4832374149_7a6dddcfef.jpg  
Reply With Quote
  #8  
Old 04-26-2012
Blhde's Avatar
Member
 
Join Date: Oct 2005
Location: Northern IL
Posts: 2,804
Check the link out in my first post, about the best price I have found for them.
Reply With Quote
  #9  
Old 04-26-2012
Member
Thread Starter
 
Join Date: Jan 2011
Location: Medina, TN
Posts: 6
Blhde, Thanks for the link. I looked today and can find a better deal either.
Reply With Quote
  #10  
Old 04-28-2012
Member
 
Join Date: Mar 2012
Location: Ramona, CA
Posts: 10
I smell clever spam. :) Bldhe Is that how it works?

Don, I don't know if you are looking for price or quality as the important factor here but there is different quality levels of the aftermarket heads. If you are looking for quality look at the "EQ" cylinder heads (ebay). I put a set on my 4.0 and the quality of the casting is superior to the standard heads.

Kevin
Reply With Quote
  #11  
Old 04-29-2012
Blhde's Avatar
Member
 
Join Date: Oct 2005
Location: Northern IL
Posts: 2,804
Quote:
Originally Posted by kev4dez View Post
I smell clever spam. :) Bldhe Is that how it works?


Maybe if I was in Alabama with 2 posts and no Sig.

You have to admit old man you looking fishy with no posts.
Reply With Quote
  #12  
Old 04-29-2012
Member
 
Join Date: Mar 2012
Location: Ramona, CA
Posts: 10
Guess I will have to work on that.
Been busy replacing cylinder heads and swapping suspension parts. :)
Reply With Quote
  #13  
Old 04-29-2012
Blhde's Avatar
Member
 
Join Date: Oct 2005
Location: Northern IL
Posts: 2,804
Quote:
Originally Posted by kev4dez View Post
Guess I will have to work on that.
Been busy replacing cylinder heads and swapping suspension parts. :)
I can feel your pain, my moms expo is sucking coolant too.


Think im going to 5.0 my ranger, freshen my 4.0 and swap it in to hers.
Reply With Quote
  #14  
Old 04-29-2012
Member
 
Join Date: Mar 2012
Location: Ramona, CA
Posts: 10
Ya, I have the 5.0 itch too, but I need to get all my suspension mods done, so I just did the heads to keep it going for awhile. Let us know how the swap goes, always interested in hearing about them.

Kevin
Reply With Quote
  #15  
Old 04-29-2012
Blhde's Avatar
Member
 
Join Date: Oct 2005
Location: Northern IL
Posts: 2,804
I have had the expo parts for over 2 years now, I may do it this summer finally. My torque converter is forcing my hand in pulling the trans.
http://smg.photobucket.com/albums/v4...cpZZ1QQtppZZ36
Reply With Quote
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
For Sale: Ford Ranger 3.0 OHV OEM Exhaust Manifolds (IN) Hillyard Engine & Drivetrain 0 03-27-2015 11:11 PM
Exhaust and Exhaust tip question beefcake morris 4.0L OHV & SOHC V6 Tech 11 07-16-2009 01:52 PM
4.0L OHV Dual Exhaust Video Lone Ranger 93 4.0L OHV & SOHC V6 Tech 13 09-10-2008 08:21 AM
4.0 ohv exhaust question kevinsranger 4.0L OHV & SOHC V6 Tech 3 05-27-2008 08:55 PM
stock exhaust/new exhaust questions DillonT General Ford Ranger Discussion 7 03-18-2008 02:00 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 -6. The time now is 02:44 AM.


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.