Cracked head - TTY vs ARP???
Lead Driver
Joined: Jul 2004
Posts: 6,951
Likes: 512
From: Foothills, CA
And Tim the heads are cast iron, you must be thinking Dmax 
When did you flush coolant last and how are/were your deltas (pre this problem). Oil coolers are pretty cheap when you're in that deep... And the STC fitting kit comes w/ the new IPR screen and the oil cooler kit comes with the new ss pick-up screen...
When did you flush coolant last and how are/were your deltas (pre this problem). Oil coolers are pretty cheap when you're in that deep... And the STC fitting kit comes w/ the new IPR screen and the oil cooler kit comes with the new ss pick-up screen...
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Lead Driver
Joined: Sep 2003
Posts: 5,241
Likes: 3
From: Other side of the sunrise
Well, I guess It'll be a good time to install a pyrometer, while it's apart. Then, once I recover from the financial hit from the heads, time for exhaust...
It appears this may have been an expensive mistake. Though I really felt that I was careful to not overheat the exhaust, being easy on the accelerator any more than short durations when needed. Live and learn, I suppose.
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Lead Driver
Joined: Sep 2003
Posts: 5,241
Likes: 3
From: Other side of the sunrise
And Tim the heads are cast iron, you must be thinking Dmax
When did you flush coolant last and how are/were your deltas (pre this problem). Oil coolers are pretty cheap when you're in that deep... And the STC fitting kit comes w/ the new IPR screen and the oil cooler kit comes with the new ss pick-up screen...
When did you flush coolant last and how are/were your deltas (pre this problem). Oil coolers are pretty cheap when you're in that deep... And the STC fitting kit comes w/ the new IPR screen and the oil cooler kit comes with the new ss pick-up screen...
The oil cooler was changed only about 20K miles ago, under warranty. That's when I got the egr delete, coolant filter and SCT tuner to turn off CEL, while apart for oil cooler change. The canned tune shifted a bit harsh so I bought Matt's tunes and like them much more. Wish I would have followed up with exhaust and pyrometer.
Would it be a good idea to go ahead and change the oil cooler, again, while apart?
The hoses aren't swollen... Should all rubber hoses be replaced? I assume so...
Lead Driver
Joined: Jul 2004
Posts: 6,951
Likes: 512
From: Foothills, CA
The diesel in coolant was discovered while doing a VC9 flush. I had the VC9 flush done because I had bought a coolant filter at an auto parts store that was SCA charged, then found out on FTE that SCA is bad for Ford Gold. Flushed to get the SCA out and the tech said he smelled diesel in coolant...
The oil cooler was changed only about 20K miles ago, under warranty. That's when I got the egr delete, coolant filter and SCT tuner to turn off CEL, while apart for oil cooler change. The canned tune shifted a bit harsh so I bought Matt's tunes and like them much more. Wish I would have followed up with exhaust and pyrometer.
Would it be a good idea to go ahead and change the oil cooler, again, while apart?
The hoses aren't swollen... Should all rubber hoses be replaced? I assume so...
The oil cooler was changed only about 20K miles ago, under warranty. That's when I got the egr delete, coolant filter and SCT tuner to turn off CEL, while apart for oil cooler change. The canned tune shifted a bit harsh so I bought Matt's tunes and like them much more. Wish I would have followed up with exhaust and pyrometer.
Would it be a good idea to go ahead and change the oil cooler, again, while apart?
The hoses aren't swollen... Should all rubber hoses be replaced? I assume so...
I've read that once you get fuel in the coolant replacing hoses is recommended, but it seems to me it'd take a high concentration of fuel to damage the rubber -- maybe one of our resident techs or other experts will give an opinion.
Posting Guru
Joined: Oct 2012
Posts: 1,777
Likes: 4
From: Des Moines, IA
Okay, thanks. I was under the impression that the turbo was the sole concern, with regards to pyrometer and stock exhaust, not so much heads. That's why I was so easy on the accelerator while running SRL, concerns for damaging the turbo. Arrrrg
Well, I guess It'll be a good time to install a pyrometer, while it's apart. Then, once I recover from the financial hit from the heads, time for exhaust...
It appears this may have been an expensive mistake. Though I really felt that I was careful to not overheat the exhaust, being easy on the accelerator any more than short durations when needed. Live and learn, I suppose.
Well, I guess It'll be a good time to install a pyrometer, while it's apart. Then, once I recover from the financial hit from the heads, time for exhaust...
It appears this may have been an expensive mistake. Though I really felt that I was careful to not overheat the exhaust, being easy on the accelerator any more than short durations when needed. Live and learn, I suppose.
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Lead Driver
Joined: Sep 2003
Posts: 5,241
Likes: 3
From: Other side of the sunrise
Live and learn... And DON'T BELIEVE EVERYTHING YOU HEAR ! ! !
The SRL tune was supposed to be mild and safe for my application. I always kinda wondered how it could run so good and still be as safe as I was told. I guess I followed advise and "assumed" that the 6.0 was able to take it. WRONG ! ! !
Like I said, live and learn.
The SRL tune was supposed to be mild and safe for my application. I always kinda wondered how it could run so good and still be as safe as I was told. I guess I followed advise and "assumed" that the 6.0 was able to take it. WRONG ! ! !
Like I said, live and learn.
Posting Guru
Joined: Oct 2012
Posts: 1,777
Likes: 4
From: Des Moines, IA
Live and learn... And DON'T BELIEVE EVERYTHING YOU HEAR ! ! !
The SRL tune was supposed to be mild and safe for my application. I always kinda wondered how it could run so good and still be as safe as I was told. I guess I followed advise and "assumed" that the 6.0 was able to take it. WRONG ! ! !
Like I said, live and learn.
The SRL tune was supposed to be mild and safe for my application. I always kinda wondered how it could run so good and still be as safe as I was told. I guess I followed advise and "assumed" that the 6.0 was able to take it. WRONG ! ! !
Like I said, live and learn.
Fleet Owner
Joined: Mar 2003
Posts: 24,724
Likes: 74
From: Blue Hill Township
I ran the SRL with the stock exhaust and no pyro. I put the pyro in and found it hits 1500+ degrees. I put on the 4" turbo back and it came down a little but not much.
With the SRL+ and the turbo back it still hits 1400 degrees.
The temps creep up when you stay in it for a long pull north of 60mph.
With the SRL+ and the turbo back it still hits 1400 degrees.
The temps creep up when you stay in it for a long pull north of 60mph.
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More Turbo
Joined: Jun 2010
Posts: 652
Likes: 1
From: New hampshire
I ran the SRL with the stock exhaust and no pyro. I put the pyro in and found it hits 1500+ degrees. I put on the 4" turbo back and it came down a little but not much.
With the SRL+ and the turbo back it still hits 1400 degrees.
The temps creep up when you stay in it for a long pull north of 60mph.
With the SRL+ and the turbo back it still hits 1400 degrees.
The temps creep up when you stay in it for a long pull north of 60mph.
Holy kanasta! 1400!? My Edge Insight alarm is set at 1250F, and I have only had that come in on a momentary basis on one occasion!
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Lead Driver
Joined: Sep 2003
Posts: 5,241
Likes: 3
From: Other side of the sunrise
That's what gets me, I never stayed into it for long durations at all. That, and the fact that others have had their heads crack with bone stock 6.0s kinda makes me wonder if the SRL had all that much at all to do with it.
When I was towing I always used the "unlimited tow" tune, which is supposed to be pretty conservative.
When I was towing I always used the "unlimited tow" tune, which is supposed to be pretty conservative.
Thread Starter
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Lead Driver
Joined: Sep 2003
Posts: 5,241
Likes: 3
From: Other side of the sunrise
I ran the SRL with the stock exhaust and no pyro. I put the pyro in and found it hits 1500+ degrees. I put on the 4" turbo back and it came down a little but not much.
With the SRL+ and the turbo back it still hits 1400 degrees.
The temps creep up when you stay in it for a long pull north of 60mph.
With the SRL+ and the turbo back it still hits 1400 degrees.
The temps creep up when you stay in it for a long pull north of 60mph.
Fleet Owner
Joined: Mar 2003
Posts: 24,724
Likes: 74
From: Blue Hill Township
I never had any problems. The temps are hot but they come down quickly when you let off the throttle.
Unlimited tow is just trans tuning and the egr turned off.
Heads sometimes crack. I don't think the srl had anything to do with it.
Unlimited tow is just trans tuning and the egr turned off.
Heads sometimes crack. I don't think the srl had anything to do with it.
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