Gas vs PSD
Elder User
Joined: Apr 2009
Posts: 685
Likes: 0
From: Spokane, WA
Yes, exactly it "defuels" as opposed to "dropping rpms." Which is why the vast majority of head gasket issues are on programmed diesels, which takes of that restriction. I have seen my 6.0 at 1,500 degrees several times for a couple seconds.
My point is really on diesels, especially newer ones with egr and dpf, fuel is the cause of the heat, not rpms.
My point is really on diesels, especially newer ones with egr and dpf, fuel is the cause of the heat, not rpms.
Thread Starter
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Modular motor junkie
Joined: May 2009
Posts: 6,190
Likes: 8
From: Texas
But you said a V10 could run at WOT all day...You didn't say it could only do it if the engine was new, with fresh oil, a strong wind at its back, and the sun at 33-degrees on the 4th day of September...Then you went out there and blew one up in 30 seconds.
Then you try to explain it away that "The RPM's weren't the problem"....Of course not...And if you'd thrown a rod, you would be saying "But the gaping hole in the side of the block's not the problem"...it was the stuck t-stat or some other lunacy. The RPM's WERE the problem...The oil pump apparently couldn't keep up with THE HIGH RPMS!
Then you try to explain it away that "The RPM's weren't the problem"....Of course not...And if you'd thrown a rod, you would be saying "But the gaping hole in the side of the block's not the problem"...it was the stuck t-stat or some other lunacy. The RPM's WERE the problem...The oil pump apparently couldn't keep up with THE HIGH RPMS!
Do you not unstand the way Ford tested them?
Yes, exactly it "defuels" as opposed to "dropping rpms." Which is why the vast majority of head gasket issues are on programmed diesels, which takes of that restriction. I have seen my 6.0 at 1,500 degrees several times for a couple seconds.
My point is really on diesels, especially newer ones with egr and dpf, fuel is the cause of the heat, not rpms.
My point is really on diesels, especially newer ones with egr and dpf, fuel is the cause of the heat, not rpms.
Posting Guru
Joined: Aug 2008
Posts: 2,313
Likes: 0
From: Sunny, Snowy, CO
The RPMs DID NOT KILL IT.
Do you not unstand the way Ford tested them?
If Ford didn't test them, would you buy one?
The limiter will let it run 5,000. These engines will run 5,000 with no problem at all. Then why did yours blow up in less than 30 seconds?
And when you defuel, you lose power. Then the V10 can outpull you by that much more.
Do you not unstand the way Ford tested them?
If Ford didn't test them, would you buy one?
The limiter will let it run 5,000. These engines will run 5,000 with no problem at all. Then why did yours blow up in less than 30 seconds?
And when you defuel, you lose power. Then the V10 can outpull you by that much more.
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Modular motor junkie
Joined: May 2009
Posts: 6,190
Likes: 8
From: Texas
https://www.ford-trucks.com/forums/9...-behavior.html
That is the engine I blew.
Now, your telling me that it was the design of the engine and I am just making excuses?
That is the engine I blew.
Now, your telling me that it was the design of the engine and I am just making excuses?
Posting Guru
Joined: Aug 2008
Posts: 2,313
Likes: 0
From: Sunny, Snowy, CO
https://www.ford-trucks.com/forums/9...-behavior.html
That is the engine I blew.
Now, your telling me that it was the design of the engine and I am just making excuses?
That is the engine I blew.
Now, your telling me that it was the design of the engine and I am just making excuses?
Thread Starter
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Modular motor junkie
Joined: May 2009
Posts: 6,190
Likes: 8
From: Texas
If Ford didn't test them, would you buy one?
Do you unstand the way Ford tested them or not?
Then why did yours blow up in less than 30 seconds?
Thread Starter
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Modular motor junkie
Joined: May 2009
Posts: 6,190
Likes: 8
From: Texas
Originally Posted by ChargersFanInCO;9636192
Those pics were taken by him, then you bought the engine without ever looking at the oil pickup screen?
That was 2,000 miles ago, it must have re-pluged with sludge.
I will post pics when I get it apart.
I'll do it for a minute or two, but it will not be 5K.
The older V10 has peak HP at a lower RPM. I will run it at 4600 or so.
If you think I'm backpedling and backing out, I'm not.
I will run the newer one at 5K as soon as Its fixed.
If the V10 was as weak as you claim, I would drive a powerstroke.
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Elder User
Joined: Apr 2009
Posts: 685
Likes: 0
From: Spokane, WA
I put a new pick up screen in.
That was 2,000 miles ago, it must have re-pluged with sludge.
I will post pics when I get it apart.
I am not going to run 5,000 RPM for 20 minutes just becuase I can.
I'll do it for a minute or two, but it will not be 5K.
The older V10 has peak HP at a lower RPM. I will run it at 4600 or so.
If you think I'm backpedling and backing out, I'm not.
I will run the newer one at 5K as soon as Its fixed.
Do you really think that I can't pull a grade at WOT without killing the truck?
If the V10 was as weak as you claim, I would drive a powerstroke.
That was 2,000 miles ago, it must have re-pluged with sludge.
I will post pics when I get it apart.
I am not going to run 5,000 RPM for 20 minutes just becuase I can.
I'll do it for a minute or two, but it will not be 5K.
The older V10 has peak HP at a lower RPM. I will run it at 4600 or so.
If you think I'm backpedling and backing out, I'm not.
I will run the newer one at 5K as soon as Its fixed.
Do you really think that I can't pull a grade at WOT without killing the truck?
If the V10 was as weak as you claim, I would drive a powerstroke.
Thread Starter
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Modular motor junkie
Joined: May 2009
Posts: 6,190
Likes: 8
From: Texas
No, I am not backing off that claim. They will run that RPM for days on end.
Posting Guru
Joined: Aug 2008
Posts: 2,313
Likes: 0
From: Sunny, Snowy, CO
I am not going to run 5,000 RPM for 20 minutes just becuase I can. No, of course not...You tried it for $20.00...You're EASY.
I'll do it for a minute or two, but it will not be 5K.
The older V10 has peak HP at a lower RPM. I will run it at 4600 or so.
If you think I'm backpedling and backing out, I'm not.
I will run the newer one at 5K as soon as Its fixed.
Do you really think that I can't pull a grade at WOT without killing the truck?
If the V10 was as weak as you claim, I would drive a powerstroke.
I'll do it for a minute or two, but it will not be 5K.
The older V10 has peak HP at a lower RPM. I will run it at 4600 or so.
If you think I'm backpedling and backing out, I'm not.
I will run the newer one at 5K as soon as Its fixed.
Do you really think that I can't pull a grade at WOT without killing the truck?
If the V10 was as weak as you claim, I would drive a powerstroke.
Thread Starter
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Modular motor junkie
Joined: May 2009
Posts: 6,190
Likes: 8
From: Texas
Looks pretty weak blowing up in 30 seconds...just sayin'...I doubt it was sludge...I bet it was that the oil pump couldn't keep up and you ruined the mains. But, go ahead and fix it and do it again...There's a $20.00 prize there for $2500.00 in repairs every time you want to try it
Do you understand the way Ford tested them?
Well, I made a vidoe. Its uploading now. Hit 5500 RPMs at one point.
Cargo Master
Joined: Mar 2006
Posts: 2,502
Likes: 2
From: Bend Oregon
I can only speak for the 7.3....no 7.3s have a stock pyro/egt sensor, the only thing that will make a 7.3 defuel is an over boost situation which is possible with a stock truck.
Elder User
Joined: Apr 2009
Posts: 685
Likes: 0
From: Spokane, WA
And running 1,200 degrees for 20 minutes is no problem, I have done it many times.