Cracks in head - Ford Powerstroke Diesel Forum
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post #1 of 15 Old 11-19-2012, 12:01 PM Thread Starter
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Cracks in head

My heads were magnafluxed at the machine shop and they have two cylinders have cracks going from the intake valve to the glow plug hole. That's a very small area there. They were pressure checked and were fine. After all the reading I've done this seems to be somewhat of a common crack. Im putting the heads back on the truck as I don't think its going to be an issue and I can't afford new heads right now.

Does anyone have experience with this?



2008 F-250 KR
7" ICON
7" PMF blocks
Bilstein 5160F/5100R
22x14 Fuel Octane
37" Toyo M/T
H&S Mini Maxx w/ Gearhead tuning!
5" Diamond Eye
4" Diamond Eye DP
ARP head studs
Custom Stock Intake

RCD converter, HD billet input, low/rev hub, suncoast clutches.
160k miles and counting...
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post #2 of 15 Old 11-19-2012, 02:04 PM Thread Starter
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Really? I need an answer asap



2008 F-250 KR
7" ICON
7" PMF blocks
Bilstein 5160F/5100R
22x14 Fuel Octane
37" Toyo M/T
H&S Mini Maxx w/ Gearhead tuning!
5" Diamond Eye
4" Diamond Eye DP
ARP head studs
Custom Stock Intake

RCD converter, HD billet input, low/rev hub, suncoast clutches.
160k miles and counting...
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post #3 of 15 Old 11-19-2012, 03:06 PM
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I think I would look for a solid used core. Sorry don't have anything more to add than consulting with the guys on Nation and Army.

08 F250 KR
08 F250 XL
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post #4 of 15 Old 11-19-2012, 03:19 PM Thread Starter
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Thanks man.



2008 F-250 KR
7" ICON
7" PMF blocks
Bilstein 5160F/5100R
22x14 Fuel Octane
37" Toyo M/T
H&S Mini Maxx w/ Gearhead tuning!
5" Diamond Eye
4" Diamond Eye DP
ARP head studs
Custom Stock Intake

RCD converter, HD billet input, low/rev hub, suncoast clutches.
160k miles and counting...
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post #5 of 15 Old 11-20-2012, 03:37 AM
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In my eyes they are probably fine to run for now but I would be looking for a good core. Those cracks could get bigger and bigger over time and cause some real issues.

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post #6 of 15 Old 11-20-2012, 07:56 AM Thread Starter
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I appreciate it sir. And that's exactly what im going to do. Im going to look into some new heads and get hardened valve seats put in so I will have less worry. :thumbup:



2008 F-250 KR
7" ICON
7" PMF blocks
Bilstein 5160F/5100R
22x14 Fuel Octane
37" Toyo M/T
H&S Mini Maxx w/ Gearhead tuning!
5" Diamond Eye
4" Diamond Eye DP
ARP head studs
Custom Stock Intake

RCD converter, HD billet input, low/rev hub, suncoast clutches.
160k miles and counting...
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post #7 of 15 Old 11-20-2012, 07:58 AM
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I think you're on the right path. Just don't stress the old ones too much and start getting some new ones to take their place ASAP.


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post #8 of 15 Old 11-20-2012, 10:49 AM Thread Starter
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Quote:
Originally Posted by Doss View Post
I think you're on the right path. Just don't stress the old ones too much and start getting some new ones to take their place ASAP.
So what you're saying is hold off on the nitrous kit until new heads?:what:



2008 F-250 KR
7" ICON
7" PMF blocks
Bilstein 5160F/5100R
22x14 Fuel Octane
37" Toyo M/T
H&S Mini Maxx w/ Gearhead tuning!
5" Diamond Eye
4" Diamond Eye DP
ARP head studs
Custom Stock Intake

RCD converter, HD billet input, low/rev hub, suncoast clutches.
160k miles and counting...
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post #9 of 15 Old 11-20-2012, 12:18 PM
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i would look into deburring valve seats. i think there was a discussion on the other forums abput this. apparently deburring can prevent cracking more than just hardened valve seats. when i get on a computer ill try to look it up for you.

08 F250 KR
08 F250 XL
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post #10 of 15 Old 11-20-2012, 12:28 PM Thread Starter
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Yeah that would be great sir. Thank you



2008 F-250 KR
7" ICON
7" PMF blocks
Bilstein 5160F/5100R
22x14 Fuel Octane
37" Toyo M/T
H&S Mini Maxx w/ Gearhead tuning!
5" Diamond Eye
4" Diamond Eye DP
ARP head studs
Custom Stock Intake

RCD converter, HD billet input, low/rev hub, suncoast clutches.
160k miles and counting...
strokin07 is offline  
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