Cracked heads. Ugh. - Ford Powerstroke Diesel Forum

 
LinkBack Thread Tools Display Modes
post #1 of 10 Old 07-24-2012, 12:33 PM Thread Starter
Emergency Services

 
lawman349's Avatar
 
Join Date: Oct 2006
Location: Mechanicsville, MD or Conway, SC
Posts: 457
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Angry Cracked heads. Ugh.

The title says it all. Just got a call from the machine shop. Both heads have very small cracks in non-critical areas, he said.

Machine shop guy told me he has seen heads with very small cracks like mine go back on and never have a problem, but he wouldn't guarantee anything. I found heads online for $1400 each. So, if I buy new heads, add $3000 to the bill. Sigh.

What would y'all do?? Anyone know where I can get OEM heads cheaper?

This blows.

2003 F350 SRW CC 4x4 6.0L
Coolant Bypass Filter w/ Cat ELC
Amsoil Oil Bypass Filter
Hypertech MaxEnergy / Bully Dog Outlook
Cat and muffler DELETE!
Icon 2" leveling kit
Mickey Thompson MTZs
ARP Head Studs / New Ford OEM HGs
New heads
Sinister Diesel EGR Cooler
Blue Spring Upgrade
New HPOP STC connection



lawman349 is offline  
post #2 of 10 Old 07-24-2012, 01:17 PM
Compression Ignition Addict
 
Join Date: May 2008
Location: Easton, CT
Posts: 670
Thanks: 0
Thanked 2 Times in 2 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Run them, I know a few people that had similar cracks and are still running fine. You could buy new oem heads for all that money and they will end up cracking eventually anyway. There was someone on here that was machining the valve seats out and fixing cracked heads, try a search.
mikeproc is offline  
post #3 of 10 Old 07-24-2012, 02:20 PM Thread Starter
Emergency Services

 
lawman349's Avatar
 
Join Date: Oct 2006
Location: Mechanicsville, MD or Conway, SC
Posts: 457
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Quote:
Originally Posted by mikeproc View Post
Run them, I know a few people that had similar cracks and are still running fine.
Really?

That's good to know.

I am already $5000 into this rebuild. I hate to spend another $3k! But I also hate to spend all this money and then put the old heads back on only to have them fail later.

2003 F350 SRW CC 4x4 6.0L
Coolant Bypass Filter w/ Cat ELC
Amsoil Oil Bypass Filter
Hypertech MaxEnergy / Bully Dog Outlook
Cat and muffler DELETE!
Icon 2" leveling kit
Mickey Thompson MTZs
ARP Head Studs / New Ford OEM HGs
New heads
Sinister Diesel EGR Cooler
Blue Spring Upgrade
New HPOP STC connection



lawman349 is offline  
post #4 of 10 Old 07-24-2012, 02:41 PM
Compression Ignition Addict
 
Join Date: May 2008
Location: Easton, CT
Posts: 670
Thanks: 0
Thanked 2 Times in 2 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
pm terrascaper his heads were cracked and he is running fine.
mikeproc is offline  
post #5 of 10 Old 07-24-2012, 08:06 PM
Premium Member
 
southend's Avatar
 
Join Date: Jan 2012
Location: Gulf Coast
Posts: 5,201
Thanks: 1
Thanked 2 Times in 2 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 1 reviews
I didnt know heads had non critical areas.
Look what notches in material can do. Notches are the beginning of...............you guessed it, cracks.
Notches a responsible for much damage in many components. A notch produces local stress concentration points and promotes the formation of service fatigue and stress corrosion cracks. At the same time a notch can produce a 3 dimensional state of tensile stress that restricts the plastic deformability and favors cleavage fracture. The stresses can then stretch the lattice of the material and promote hydrogen embrittlement. Fatigue fractures can be initiated by these notches.

Sent from my SCH-I500

Unfortunately had to Sell my ......2004 KR CC SWB FX4 - Edge insight cts, blue spring upgrade, updated HFCM drain plug, XDP coolant filter, CAT EC-1 rated coolant, Custom Diesel EGR delete, CAT delete, Rotella T6

SEE MY OIL COOLER REPLACEMENT AND EGR DELETE - http://www.powerstroke.org/forum/gen...tml?highlight=
southend is offline  
post #6 of 10 Old 07-24-2012, 09:15 PM
Compression Ignition Addict
 
Join Date: Sep 2011
Posts: 4,368
Thanks: 6
Thanked 137 Times in 130 Posts
Mentioned: 3 Post(s)
Quoted: 48 Post(s)
Feedback Score: 2 reviews
Quote:
Originally Posted by southend View Post
I didnt know heads had non critical areas.
Look what notches in material can do. Notches are the beginning of...............you guessed it, cracks.
Notches a responsible for much damage in many components. A notch produces local stress concentration points and promotes the formation of service fatigue and stress corrosion cracks. At the same time a notch can produce a 3 dimensional state of tensile stress that restricts the plastic deformability and favors cleavage fracture. The stresses can then stretch the lattice of the material and promote hydrogen embrittlement. Fatigue fractures can be initiated by these notches.

Sent from my SCH-I500
your heads probably have the same cracks in them. how's your mind? blown?
drunk on diesel is offline  
post #7 of 10 Old 07-24-2012, 09:23 PM
Compression Ignition Addict
 
Join Date: Jan 2009
Location: Travelers Rest, SC
Posts: 2,683
Thanks: 0
Thanked 1 Time in 1 Post
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 2 reviews
Send a message via AIM to Lowdown89 Send a message via Yahoo to Lowdown89
Check these guys out, jj is an awesome guy to deal with and will treat you right! Plus you can't bat the price!

6.0 heads ready to go! - PowerStrokeArmy

Jason, But you can call me Sir!!!


2001 F-350 CC Dually~Built and tuned by PHP~572/1161ft lbs fuel only~few LEDs here and there
GOPOWERHUNGRY.COM
Lowdown89 is offline  
post #8 of 10 Old 07-24-2012, 09:40 PM
Compression Ignition Addict
 
Join Date: Dec 2011
Posts: 340
Thanks: 3
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 1 Post(s)
Feedback Score: 0 reviews
Go on ebay there is a company that remans them valve seats and all for 500 a piece with a warranty.
devster55 is offline  
post #9 of 10 Old 07-24-2012, 09:59 PM
Compression Ignition Addict
 
Join Date: Jan 2009
Location: Travelers Rest, SC
Posts: 2,683
Thanks: 0
Thanked 1 Time in 1 Post
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 2 reviews
Send a message via AIM to Lowdown89 Send a message via Yahoo to Lowdown89
Or buy them from jj for $1000 for the pair and know you are dealing with a reputable shop not to mention the OP is in SC and dozers is located in NC so he will get them quickly

Jason, But you can call me Sir!!!


2001 F-350 CC Dually~Built and tuned by PHP~572/1161ft lbs fuel only~few LEDs here and there
GOPOWERHUNGRY.COM
Lowdown89 is offline  
post #10 of 10 Old 07-24-2012, 10:11 PM
WWW.COMPIGNTECH.COM

 
Join Date: Oct 2011
Posts: 9,370
Thanks: 98
Thanked 103 Times in 82 Posts
Mentioned: 1 Post(s)
Quoted: 2 Post(s)
Feedback Score: 10 reviews
ask the machine shop where the cracks are and if they are in the valve seats call tucker valve seats out of texas (432) 362-7321 give them a call and you can order new valve seats for these heads for $7.19 a piece you will need 16 of them.

l BRYAN l


WWW. COMPIGNTECH .COM

Look us up on Facebook
COMPRESSION IGNITION TECHNOLOGIES

l 2005 l Ford F250 l FTX l
[A Few Odds-N-Ends]

Tuscany is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Ford Powerstroke Diesel Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may 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 On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome